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Not gonna lie, the footage in this video was like, my very first packs on it. Within even 3 packs I got a lot faster. The main reason I was crashing this one was because the camera angle was too low. That reaaaaally throws off the throttle and makes it hard to control. It’s an easy fix but I wanted to fly this one default. The happymodel eco BNF, I lost my original footage so even what you see in the video review I did was after I had made some adjustments like to the camera angle. And also after I had warmed up haha. Both BNFs surprised me with how well they flew. For what they are, they’re both great. This betafpv air BNF is gonna be a lot more competitive due to the lightweight. It’s actually quite a beast and very impressive for a BNF. Other people are saying that theirs has VTX issues though. Neither myself nor the other reviewer I was talking to had VTX issues during our testing and it’s something we specifically looked for. But other people having issues is giving me pause. I’d wait a bit and see how the vtx shakes out in the real world. Watch the Facebook groups and see what people start saying about the vtx over the coming months or weeks and then make the decision. At the very least, I wouldn’t use the ANALOG version of the mobula 6 2024. It uses a different fc than the Hdzero version and that fc has had a ton of issues. I don’t have one for myself and I don’t carry it in my store (due to the issues it has) but immediately at release, Facebook was flooded with people having issues and the people I’ve talked to who do customer support for larger stores than mine have mentioned that fc specifically as being problematic

Interesting perspective

Thanks for the info

Haha thank you! I’m a bit rusty but I still like to get after it 💪

Haha all tinywhoop racing does.

Yeah 27g is so much! 17g makes such a difference. I personally don’t mind flying up to about 20-21g aside from lower flight times but even there you can feel the difference

This is a race build so I only use 25mw. I don’t really try to ever go super far away and I never really have issues with video signal. In most houses you’ll be able to fly anywhere in the house on 25mw and probably even outside and around it. So on a race track the only video issues you’ll have will be interference from other pilots really. So I’m not really sure how far you can go. I’ve gone pretty far on 25mw in the past. But with how I fly, there’s never any kinds of video signal issues. And the further you go away, the further you just have to walk to pick it up cause it happens to go down in the grass and get a piece of grass stuck in the prop. I only showed a fraction of my dvr in this video and you can see me getting up to get my whoop like 3 times lol.

@@FPVYeti got it. Thanks mate!

Mine is also 4:3 Is there a way to change it?

@@shawnispoppin no clue

@@alexandrvishin8411 it’s wild hdzero doesn’t have a manual or guide for all this stuff. Had to looks for hours to figure out the stick movements just to unlock menus

@@shawnispoppin well there is a guide on how to get in the OSD menu out there, but in the menu itself I can't find an option to change ratio. There is an opinion on the internet that Mob6 2024 ECO don't do 16:9 but here on the video it's deffo not 4:3

@@alexandrvishin8411 just saw a review on eco and the cam is fixed. You have to switch the actual cam lens to change from 4:3 on the eco. So there isn’t a setting in the menu. Little relived knowing it’s not messed up tho

Hmm that’s a good question. Every day I lean more and more towards buying dedicated goggles for the system. For analog, the 04x v2 vs the 04x pro… almost no difference but I actually prefer the v2. In my opinion, get the v2 for $300 and get walksnail x goggles when you want to fly walksnail.

Thanks for the answer and great video by the way. How bad would you say the v2 compared to the pro is when using the walksnail module for cruising stuff and also for proximity freestyle? How much of a difference does that new hdmi input make?

@@theoskoutakis9127 so there’s a couple things to consider. Firstly, there’s 2 sides to hdmi. And just because one side can receive 100fps, doesn’t mean the other side can SEND 100fps. The Hdzero vrx, for instance, can’t send more than 60fps under any circumstance. So it doesn’t matter which of the 2 goggles you have, the performance is the same. I’ve largely ditched walksnail for numerous reasons so some of this information might be updated, but when I was reviewing these goggles (though I don’t think I knew it while I was reviewing them in this video, it’s been a long time I don’t remember haha), the walksnail vrx CAN output 100fps but only sometimes. Walksnail has their 2 modes. I forget what the first is called but I think maybe just “standard” which is where it performs a lot more like dji. You have a dynamic latency. Overall worse performance on that front and it’s pretty much impossible to track with a race lap timer. However, you get higher resolution and better range. The other mode is race mode where the image quality goes down to 540p but the latency is fixed and it can be tracked by a lap timer. 99% of my flying is whoop racing. Both being indoor and on the race track, latency is much more obvious and so for me, the standard mode is completely useless. And the last time I flew walksnail, the vrx couldn’t do 100fps in race mode. It says it can in the menu but then just can’t. With that context, there’s a couple things to say. I think if you’re flying a plane or just cruising outdoors, the standard mode 60fps is fine. I also don’t range test, but in general, I think 60fps is going to be higher range than 100fps. So if you’re doing long range flying, I’d guess you probably don’t want 100fps anyway. And if you want to do a liiiittle more than cruise but still not any serious freestyle or racing, then race mode 60fps will probably be fine but you won’t be going long range. Keep in mind though, I really only race whoops indoors lol. So this Is all based on my personal experience which isn’t the use case that you’re asking about. For my use case, which is racing and requires race mode, there’s no difference between the goggles until walksnail adds an update to give the vrx 100fps race mode (which may or may not have happened at this point. No idea). Because the vrx CANT do more than 60fps in race mode. For your use case where you might actually prefer 60fps, there won’t be a difference because you don’t WANT the vrx to output more than 60fps. The only time it matters is when you specifically want to fly the standard mode in 100fps. That’s the only situation where the vrx can do 100fps and the pro goggles can support it and the v2’s can’t. Keep in mind though that the walksnail x goggles have a replaceable vrx module. So they’re the only option that actually have any sort of future proofing. And it seems that the existence of this feature implies that walksnail is intending to render all other options obsolete. However, I know you fixed wing long distance guys love having a ground station. Although, nothing says you can’t use the walksnail x goggles as a ground station and run the hdmi to your skyzones 😂 So overall, based on my experience, I wouldn’t recommend going for the walksnail vrx. But for your use case, you’ll probably be fine. Probably on either set of goggles.

@@FPVYeti thanks for taking time to consider my question and provide a helpful answer. However, I think i will go with the Dji googles v2(I dont really like DJI but hear me out). A good pair of used DJI v2s will set me back around ~$280 where i am. With a cheap analog adapter i will be able to get a pretty analog picture ( i know this introduces some latency, but honestly i don't think my skill level has yet reached a point where this will hold me back. Also currently i do mostly freestyle no racing yet.) for flying cheaper basher drones and whoops, and when i wanna dip my toes in digital i can choose the o3 and vista/link systems for fixed wings and/or cruisers/cinedrones anf maybe also freestyle.... Although i mentioned i dont really like DJI as a company, it seems to be the more developed and mature protocol/system for the going down the digital route. also with the release of the o4 probably soon... even if probably the o4 will not be compatible with the V2 goggles, at least the o3 drop in price. which for me is good enough. so the idea is to buy the goggles v2 with a analog adapter and a eachine pro58 receiver running achilles software ~+$50. (which i think screen wise will be a huge improvement over my current ev800d even with the added latency :P). And down the road i am ready to just buy any of the DJI air units for the digital eye candy. I would love to hear your thoughts on the above. Do you have any experience with the DJI v2 running analog? how much does it differ from the a top of the line dedicated analog goggle like the skzones?

Thanks man 😁😁

I can probably throw up a temporary google drive link. Give me a minute.

Okay so… I didn’t back up my actual BNF from the video lol. And at this point it’s been completely repurposed and reflashed for a UWL build. However, I DO have an old version of this BNF. It used the same flight controller but the camera was an old version. I do have a backup of that, and that should be completely untouched and unmodified. I’d wager it’s not much, or any different. I uploaded that so you can find it here: drive.google.com/file/d/1XDvg9FDw-N5w1EjTw_hG2AZURTWZKnu2/view?usp=drivesdk

@@FPVYeti Thanks, bro! 👍🏻

I only fly 25mw

That would be the frame and motors. The motors on this BNF are for 1s and the frame only holds a 1s battery. If you used the fc and eco bundle on another build, I think you should be able to use 2s

I do not race. I'm using Dogcom 320 foldeds (new), and get 2m to 2m 15s stopping at 3.3v

@@BadRavenFPV Thanks mate

Haha close! I’ve picked up some weird accents in my adulthood no doubt. Or maybe I’m just recognizing them from hearing myself talk more. But I’m from Ohio

There’s no firmware updates officially out. If you can’t see video, off the top of my head, that seems like a power issue. Make sure the vtx is powered off vbat and that your flight controller is receiving power. Also make sure that the camera power is secure and didn’t come undone. Also make sure that your goggles/vrx are updated. Aside from this, watch some Hdzero setup videos. I don’t think there’s anything in particular you have to do to get video, you should get video just by powering it up. But going through the process doesn’t hurt. You may need to take it out of pit mode as well

Thank you very much 😊The power for the flight controller is OK, the camera is a Runcam HDzero with out the MIPI cable is like analog wiring , the get the power but with only the red light, the blu light is flashing only one time. I will do my best …. Not successful

@@nicorc9891 might be a good idea to reach out to Hdzero support to see what they know or to check the manual. I’m not sure what the issue would be off the top of my head.

@@nicorc9891 Any result on this please?

Thank you for your help and your attention. I solved the problem by asking HDZero support for help, they immediately sent me a specific firmware for the Eco Bundle Vtx. Now everything works perfectly, beautiful screen with Betaflight OSD.

The 04O looks fantastic but they are only a couple weeks old and skyzone doesn’t send out review units. Most of the TH-camrs already have goggles they like. The only reason I was able to review this 04X pros is because I was in the market for them and happened to buy them right at launch! But it’s pretty rare to see anyone use them let alone review them at this point. I’ll put my “at a glance” review in another comment and that might help you… or make the decision harder lol.

The 04O pro obviously are 60fps only so if you’re looking for walksnail 100fps then you’ll definitely want these 04X pros. However, walksnail doesn’t offer full 100fps support through the vrx in every mode last I checked and Hdzero doesn’t offer 90fps support at all through the vrx. So the 100fps of the 04x pro compared to the 04O Pro is pretty useless in most cases. Aside from that, the main differences, as far as I know, are the screens and dvr. The dvr with the 04O pro is a different format. It’s still 60fps but I have no idea how the quality compares! The screens on the 04O pro are different. They’re lower resolution but still high enough for Hdzero and walksnail. If you do full 1080p walksnail or whatever then you won’t get full resolution with the 04O pro but, in my opinion, walksnail really should always be prioritizing the lowest latency possible as it’s quite difficult to fly indoors due to latency. I personally wouldn’t recommend flying walksnail outside of 100fps race mode so I wouldn’t even use the 04O pro for walksnail at all. But the vrx doesn’t support 100fps race mode anyway last I checked so I also wouldn’t recommend these 04x pro for walksnail either now that I’ve been using them for an extended time. So the resolution and fps of the 04O pro I find to be a non issue. It seems that the 04O Pro is a 16:9 screen, same as the 04X Pro, and unlike the 04X v2. This means that if you fly 4:3, your fov is gonna be smaller than what it states (which is something like 42-43 degrees fov). Might be closer to like 37-38 degrees, just guessing. So the fov is gonna be significantly smaller than the 04X V2 which is 45 degrees in 4:3 and the 04X Pro which is just a little bigger than the 04X V2 in 4:3. But if you fly 16:9, then the 04O Pro might actually be somewhat bigger of a fov than the 04X V2 but somewhat smaller than the 04X pro. But the 04X Pro, upon extended use, I feel is too large in 16:9. It’s a lot harder to get everything in frame than I initially thought. And finally, since the 04O Pro is a different screen, we don’t really know how good the oled is. The Fatshark HDO’s, for instance, are a much worse oled screen compared to HDO2’s and all other premium goggles. Still OLED, just not as good of an OLED. So it’s just kinda a question of whether the 04O Pro screen is gonna hold up to the older siblings. I don’t know what other goggles might use the same screen off the top of my head so I’ve got no frame of reference. The 04O pro also, I’d imagine, will be able to use both receiver slots but that’s kinda pointless anyway so… But yeah the difference really seems to be in the screen and the dvr so those are the question marks!

@@FPVYeti Pretty sure the screen on the 04O Pro is 1920x1080 16:9 - let's face it, they are all Pro models now, you can't really get the non-pro versions anymore. And at $360 for the Pro version, that's a big win IMHO. I bought mine 2 weeks back, I thought I ordered the standard version but what I got was the Pro. Its my first set of proper goggles so the only thing I have to compare against is the Eachine EV800D box goggle. They are just way more comfortable to wear. I've had some issues getting the whole screen all in focus at the same time, but I'm a bit of an old timer so my eyes might just be shot. There is definitely vgnetting when its in 16:9 mode though and you can't really see the extreme corners of the screen. 4:3 mode is fine but then what a waste of screen real-estate!

I did! Working on a video of just the Eco right now and weighed the different parts. The eco vtx is 0.2g heavier but the wiring is 0.2g lighter than the mipi cable. The cameras weigh the same. The only real weight loss you get with this bundle unfortunately is in the camera mount. The bikeguy camera mount is about 0.2g lighter than any mount I’ve seen for the old bundle. But that’s the only weight loss I’d really expect to see with this one.

@@FPVYeti Very interesting information, I look forward to learning more from your discoveries.. I will live vicariously though you guys and TJ, I am broke and will not have funds for whoops the rest of the year. Would be cool to have all HDz whoops for next season though...🤞🏻

@@FPVYeti So there's no weight saving, and worse image quality than the Whoop Lite, so where is the benefit apart from cost? Lower current consumption?

​@@BadRavenFPV No mipi cable is what I'm seeing as a big benefit. My mobula8 regularly damages the mipi cable in a crash, I'm sure others have had similar experiences.

Good catch! I noticed that after the fact but I missed it during recording. It was later when I went back and was like “hmm. They did change this!” I set it back to x9 later. I’m not sure why they had it at 11x but since flight time was my main complaint with this build, the more tame esc settings I think are a better choice. I didn’t do a flight time comparison but I believe that, in general, that 9x is better for flight times, which is why I changed back to the default 9x, but you might know more than me about that!

I’m not sure what exactly you mean!

@@FPVYeti Do you have any plan to design &build your own fpv? Or doing any upgrade work on it?

@@FPVYeti This is so cool! Wondering if any custom service may help? Would love to have any further discussion!

@@zoeyzhang9866 you may have to DM if you want to continue this conversation. You can find any of my Facebook pages: FPV Yeti, Aerial Outlaws, or Underground Whoop League.

Sorry, just seeing this. The canopy is here: www.aerialoutlaws.com/products/bikeguy-camera-mount-canopy

Yes sorry! It got delayed due to messing up and not recording dvr. So I had to spend the time redoing this video that I wanted to spend on the eco video! I had to wait a couple days for good weather before I could re-record this dvr as well and I didn’t want to completely disassemble the drone just to have to reassemble to redo this video. So me not recording dvr right the first time actually set both of these videos back by several days! So that’s my bad. I really messed that one up 😅 I think at this point it will probably be next week that it comes out! The big UWL regional championship is this weekend and I have to get ready for that :/ Eco video is coming though! There’s a lot of interesting things about this new eco camera and I don’t think anybody has really given the full picture yet! I was talking to Carl from HDZero for about an hour just asking tons of questions about how it all works and why he chose to go this way so I’m excited to share that with everyone!

@@FPVYeti I found your video looking for an ECO review. Bummer that most of that was missing and the review largely stopped after the unboxing due to all of the mods because you were focusing on several other videos at the same time. You could tell that reviewing the BnF was not a priority compared to using the parts of other videos. Overall decent video but kind of feel apart for me. I would suggest coming up with a goal for the video and ensuring thats met before doing the next few. Keep it up and I'm interested in the next video.

@@gadgetmerc noted! I’ll say the goal of this video was to review the BNF specifically and show people how it flies! IMO, a bnf is just the sum of its parts so you really gotta dissect it and see what it’s made of to know if it’s any good! Sorry that didn’t connect with you. I’ll work on making that more obvious in the future. The video was pushing an hour and a half long so I tried to really cut it down and stay focused on the drone itself The next video is gonna be more focused on the actual camera and vtx!

@@gadgetmerc I move really fast with this too and am not yet to a point where I can put a lot of time into TH-cam. I took some pictures of the bnf before I modified it but ended up having to clear the space on my phone and deleting those photos without thinking about it so the thumbnail ended up showing a modded picture as well. Might try to see if I can go find some of the pictures in messages and recover something for a better thumbnail. I really tried to focus on reviewing this as unmodded as possible but I just ended up losing the media to show that entirely unfortunately :/ I think it is pretty incredible out of the box and if I were getting another one brand new, the only thing I’d immediately change is rotating the vtx and then maybe switching the canopy to the BikeGuy mount once the one it comes with gets some stress marks. The only other thing I really did was swap frames which I don’t recommend as it flew a lot better before I did that! I’ve got a to do list that’s a mile long and I don’t have a lot of money to put into these parts for review so I try to get the most mileage out of it possible. I think there’s a lot of information I see missing from TH-cam so I’m just trying to fill those gaps when I can but I am still pretty new and inexperienced at it! I also spend the majority of my time working on UWL and managing that. I think I’m probably more suited to help the community and grow it through UWL than I am through TH-cam hahaha But I’ll keep doing my best on these TH-cam videos for now when I have time. Hopefully you like the next one more!

Thanks man! I felt like I was just making the video unnecessarily longer by explaining all that but I also really wanted to be honest about what people were looking at. Bummed I didn’t capture that first flight 😭it’s also the reason why I’m a couple days late uploading this!

Rapidfire fits. Fusion does not. But you need a customs cover for rapidfire and that’s the real issue. I’ve tried printing them all and they all suck. Rapidfire doesn’t really give any better reception in my experience. Maybe like 3% better. So I took my rapidfire out and stopped using it. Not worth the money or hassle Imo.

specifically racing, the 38 fov seems better for racing which is still big, and its 140 bucks less

Get Sky04O PRO. 1920x1080 16:9 OLED 42 deg screen which is about 35 on 4:3.

Yeah man, the 100fps is the only big reason. The larger screen size is nice but, 100fps is the real thing here. Hdzero doesn’t support that (90fps) with the vrx Walksnail apparently only half supports it currently. Soooooo yeah man. After flying them at a race and trying walksnail, I’m leaning more towards the “less worth it” side currently. Hopefully walksnail updates so we can take full advantage of the 100fps

Thank you. One thing I’m just noticing recently is that it seems walksnail can’t output 100fps via racemode yet. It’s supposedly coming but this affected my performance at the last race. So I’ll include that information in the next video as well

I THINK I got some dvr from the goggles but I put in a card I had laying around so I’m not sure if it was formatted right lol. I’m gonna be working on that video soon. But really what you should know is that it’s the 60fps dvr. Should be the same as the 04X v2 which is one of the best dvr’s out there for analog. As far as range and penetration, I’m not sure I’m totally equipped to do many tests like that in any real meaningful way currently. The module it comes with is the latest version from skyzone and I’ve found even older versions to be pretty comparable to my rapidfire. It’s all wayyyyyyy overkill for whoop racing which is most of what I do. Didn’t even bring antennas to the race and didn’t have the slightest amount of breakup. Completely clean video the whole time. But that’s just kinda how whoop racing is. Not super demanding. I’ve never really had problems flying around any house or multiple tools over or anything. And I never really put much thought into antennas or trying to optimize that. If you wanna do 5” with analog, it really will be environment dependent. Most situations it should be okay but if you’re trying to do any hardcore bando exploration with lots of concrete and walls in the way, that might be a little more of a dji or walksnail situation. I do kinda like analog for the small amount of 5” flying I do though. Super simple and cheap and feels good to fly. I’m pretty confident you’ll get at LEAST 95% of the performance with the skyzone module as any other module out there. I’d wager closer to 100% of the performance. I have a rapid fire module and have never really felt the desire to put it in my regular 04X in place of the skyzone one. With modules this close in performance, you’re gonna get a much bigger difference by focusing on good RF practice. Making sure that you’re using good antennas on both the quad and goggles, positioned properly, facing the right way, and that your physical location compared to where you’re flying is good. So yeah you’ll get pretty leading class performance from the skyzone module I’d say. So really it’s just a matter of whether analog in general can live up to your needs. There’s lots of Mr. Steele videos where he shows his analog dvr. That’s gonna be different goggles, different module, whatever antennas, etc. but it can give you an idea of what you can do with analog. And you’ll be able to do all of that with these goggles too, just assuming you’re focusing on good RF practices and whatnot like he does. Are you looking to use analog for 5” or for

​@@FPVYetiThank you friend, you have explained all the advantages of these goggles honestly. OK FIX!!! I will switch to analog because of the advantages and versatility of these goggles. Thank you friend for opening my eyes. and all this time I was on the wrong path. I can't wait to see your next DVR video about these goggles. Good job bro!

It should yes. I haven’t tested it but I can do that. I noticed some other issues so I am gonna be testing lots of stuff and keep giving updates as I discover more!

@@FPVYeti Hey any update on this? any issues?

@@reecephillips3090 hey man! I actually made a follow up video to this one but haven’t released it yet. The walksnail system was drastically underperforming and not meeting expectations so I kinda just decided to put walksnail on hold for a bit in my schedule as I’ve got other products I wanted to look at. That being said, I did get a chance to try the walksnail system in 1080p on these goggles. The goggles switched to 1080p and was able to display the walksnail vrx in 1080p no problem. I checked the goggles settings and it confirmed to be displaying 1080p at 60hz The only issue is that there was a thin flashing gray bar that appeared at the top of the feed. I’m guessing this was walksnail related as it went away immediately when I turned the drone off and cut the feed. So the goggles can definitely do 1080p60 I’d say. I am pretty sure that they can’t do any higher hz than 60 in 1080p as the screens aren’t rated for that. And I’m fairly sure that only walksnail is willing to push the screens out of spec (the screens in these are the same as the screens in Hdzero and walksnail x). For me, I find walksnail borderline unflyable if it isn’t in race mode, which is gonna be 540p. And the vrx, at least my update which was the newest about a month or so ago, doesn’t support full 100fps output in race mode haha. Point is, the flashing grey bar is annoying enough to me that I wouldn’t do 1080p on these goggles anyway unless I just needed the dvr and could crop it out. But even if the flashing grey bar was gone, I still personally wouldn’t be flying 1080p Unfortunately I only have this one walksnail unit in a build at the moment. So I can’t check with other ones. And I have reason to believe that my walksnail cam/vtx unit is low key bad anyway. So the flashing bar truly might be isolated to just my walksnail unit. I do not THINK it’s skyzone related. But I don’t have the resources to test any further really.

@@FPVYeti Hey thank you for the response look forward to the video. Are you located in sydney? if so would it be possible to have a try of the goggles, i've got 2 quads both analog was planning on these goggles due to the "Future Proofing" of them being able to mount Digital Rx on them. But anything would be an upgrade compared to what im using lol. TBS box goggles which i bought like 6 years ago. Any thanks if not

@@reecephillips3090 nah, I live in Ohio. In the US. Sorry bro!

Very well said.

Cool 👍🍮

you woudn't need an analogue bay with hdz... less than two weeks of flying hdz you'd prob stick to it

Lots of reviewers said Hdzero was good for analog. It was supposed to be the best analog goggle out there due to the deinterlacing. When it works, it does look amazing. And we had several people around me buy them based on this. So far it just hasn’t turned out that way. Yes the image is good but everything else about the experience has been riddled with problems. Some people have had a good experience with it. Nobody in Ohio has, as far as I know. And lots of people in the group have had the same issues. They are fixing a friends goggle though and we will see if that actually fixes the issues he has. The Hdzero goggles are wider, thicker, and heavier. By how much, I dont objectively know. The skyzone form factor are the smallest and lightest goggles I’ve seen out of any. The Hdzero are the heaviest and largest I’ve seen out of any with a true binocular style form factor. So in my opinion, it’s a pretty drastic difference. I am loving the fov increase of the Pro. For most people, yeah that probably isn’t worth the upgrade from the regular 04X But the reason I upgraded was for walksnail. Walksnail has been pretty much unflyable for me on the 04X due to how bad the walksnail latency is, plus the 10ms or so extra latency for using a vrx. I haven’t had a chance to do all the testing yet but my hope is that the 04x pro makes walksnail flyable. In that case, for anyone who would want to fly walksnail, the 04X pro is absolutely worth the upgrade. The walksnail experience was so bad on the 04X (and keep in mind that the 04X was better for walksnail than any other 60hz goggle) that I’d say the 04X essentially didn’t support walksnail. I’d never recommend anybody use walksnail on the 04X, or any other 60hz goggles. Again, on the pro goggles, we should find that walksnail is now usable. So in some sense, and especially for me, the upgrade from the 04X to the 04X Pro could be the difference between using walksnail or not. For people not interested in walksnail, yeah I understand why the upgrade to the Pro wouldn’t be worth it. However, for anyone interested in walksnail, the upgrade to the Pro really seems like a no brainer. Not just a no brainer, but straight up necessary. In fact, I upgraded from the 04X to the 04X Pro myself, and so far, no regrets. I’m hoping to do some testing next weekend at the next race with latency and all that but haven’t had a chance yet. We will see if I have any regret after that or if it meets expectations lol. As far as upgrading from the cobra x, these goggles are just in completely different leagues so it’s just a matter of what your goals are. The cobra x are still actually very similar to 04X pro, in more ways than most would think. By upgrading from the Cobra X to the 04X pro, here are some things that aren’t really changing 1) resolution of analog video 2) screen fov, more or less 3) reception capability 4) dvr recording (both are top of the line) Here are some things that are changing 1) the pro have focus adjustments, though the cobra x are large enough to fit glasses underneath for some people. 2) the screen resolution (only makes a difference for hd) 3) the screen brightness 4) OLED screens, which make a huge difference in getting the most detail out of your image, especially for analog. 5) form factor 6) size and weight 7) input latency via hdmi (the 04x/04x pro are much faster. For whatever reason, the cobra x is just not. Testing people have done seems to indicate that you’ll have over twice the latency using walksnail with the cobra x vs the 04X pro. So really think of these purely as an analog goggle, as even Hdzero will suffer pretty bad from that latency.) 8) 100hz screens and 100fps hdmi input, again for walksnail. So if you’re just looking to get good reception around a track with a large fov, maybe record and post some dvr, the cobra x are all you need. If you want anything more than that, you probably want the upgrade. So I actually really like the cobra x for what they are and for a lot of people, it might be all they need. As far as analog goes, the only big issue I have with the cobra x is the lack of oled. If the cobra x had oled, I’d happily use them as my analog goggle. I’d choose them over Hdzero goggles for analog at that point probably lol.

Hmm interesting. The research I’ve done seems to indicate that the majority of the latency is coming from the vrx themselves, not the goggles. At least in the case of the Hdzero and 04x. I’m pretty sure the 04x Pro also is probably around the 1-3ms range for input latency. The 9ms number people quote seems to be the OUTPUT latency. My understanding is that the conversion to hdmi is where a lot of the latency comes from, which is why both walksnail and Hdzero vrx’s are quoted as being about 9ms output latency from multiple sources. So that 9ms is getting added regardless of which goggles you use, as the latency isn’t coming from the goggles themselves. It’s coming from the vrx. You are correct that Hdzero was not fully optimized and so it was getting extra latency on the goggle end, but even being optimized at the goggle end down to 1ms, you’re still looking at like 10-11ms in total as your “penalty” for using a vrx. 1ms or so from the goggles, 9ms or so from the vrx. The 04X Pro I don’t believe is much different from the Hdzero goggles on input latency. I haven’t ran these tests myself. I’m not an expert on all this myself, so I could be wrong. Just going off of the multiple bardwell/Chris rosser/mads tech videos covering latency and input from the Facebook groups. So if I had to guess, I think you’re getting the output latency and input latency confused as the 04x pro and Hdzero I’d expect would only be about 1-2ms off of each other. Again, haven’t tested it myself, but the 04x was consistently one of the lowest input latency testers in everyone’s tests and skyzone really seems to have known what they were doing with these goggles, so I’d be surprised if they didn’t optimize these goggles as well as the last ones. That would be a huge oversight, but until we do some testing, it’s hard to say. But the skyzones can have firmware updates, same as Hdzero, so I’m sure that if there was some oversight in that department, it could be fixed. The point I’m making though is that the issue im highlighting Isn’t really the input latency of the goggles so much as it is the output latency from the vrx. Which there’s nothing you can do about from my understanding. Not if you’re outputting via hdmi. It’s just always gonna be higher than desirable. So that’s why I’m highlighting this specific issue, because no matter what skyzone does to their goggles, or Hdzero to theirs, etc., you’re still getting a 10ms latency penalty compared to native. That can’t be fixed. There’s no way around it. That’s just part of the game you play when you’re choosing to not run native only. I believe the output from the vrx specifically is the reason why orqas hd system (which may never see the light of day at this point lol) was foregoing the hdmi output for a different, lower latency connection. They were trying to fix this 10ms latency penalty that will always exist as long as there’s hdmi being used. So it’s my understanding that the Hdzero goggles with a walksnail vrx will never match walksnail goggles with a native receiver, simply because the vrx itself adds so much latency due to the hdmi conversion. This is true for the 04X Pro and any other goggle. As long as the signal is being converted to hdmi, you’re gonna get a significant latency difference. So if you’re worried about 10ms or so of latency, you should never use any hd vrx currently in production and instead should opt to use the native goggle for that hd system. Hope that makes sense.

​@@FPVYetilooks like my reply got blocked because I added a link. See MadTech's recent Digital FPV latency and Frame Delivery video, where the Goggles X + Walksnail VRX was actually marginally faster than Goggles X alone. So VRX latency is definitely due to goggles HDMI input lag.

@@kandredfpv ah I see what you mean. Yes I’ve watched the video. It’s pretty well documented I think that the hdmi conversion is adding latency. We have heard this from Orqa and HDZero both too. It’s pretty apparent that the Hdzero vrx4 seems to be following this trend. However, I glossed over the fact that the avatar system is faster using the external module via hdmi. This is quite interesting behavior as it really doesn’t align with what we know to be true, coming from other tests/manufacturers. Not that mads tech is wrong, I think this is probably best explained by assuming that caddx is doing something internal that is adding just as much latency as the external vrx. In other words, I don’t think it’s true that the external walksnail vrx isn’t adding latency. I think the walksnail goggles are just adding slightly more for some reason. This is kinda wild to me because you’d assume that they could’ve streamlined it more like Hdzero did. I’m not sure where you’re getting the 9ms from. I haven’t seen any latency tests on the 04X pro but the 04x have consistently shown to be one of, if not the fastest hdmi input. Always testing within 4ms of the fastest. Madstech’s latency tests you’re referring to show Hdzero getting only 3ms faster with optimization. Bardwells latency tests (testing the walksnail vrx on different goggles) show HDZero goggles to be 21ms slower than 04X before optimization. And the 04X only 4ms or less than the hd02, which were the fastest in that latency test. That’s in 60fps mode I don’t think mads tech said what mode he was testing in, but given that he was using an apex by the looks of it, it must’ve also been 60fps. Assuming both of these tests are correct, the 04X should still be 14-22ms faster than the Hdzero goggles, even after the Hdzero goggles having optimized firmware. I don’t think this is correct… but it’s what the numbers are showing. I think what this shows, more than anything, is that the exact numbers of these latency tests can’t really be trusted because it seems like there’s some screwy stuff going on. But probably the best we can do is just look at general placement. And in that case, the 04X consistently are among the fastest. And leagues beyond Hdzero goggles before they got optimized, which seems to only have helped slightly. Given all of this, alongside Chris Rosser’s testing, assuming the 04X Pro are as fast as the regular 04X, I’d be shocked if the 04X pro were even 5ms slower than the fastest goggles on market. And my guess would be that they actually are the fastest goggles on market when used in 100fps, at least as far as hdmi is concerned. I think a lot of the data is just ultimately not there so it’s hard to say anything with certainty. But looking at the data we have, this is the conclusion I’d say we are being pointed towards.

​@@FPVYetihaha, you're over thinking it bro. Have a look at Chris Rosser's Walksnail VRX latency tests. He had a time-to-first pixel of 28ms for the Avatar Goggles @720p60 and 38ms for the VRX+Sky04x v2 also @720p60. That's 10ms of additional latency. And if you want anecdotal evidence, in the comments section of JBs FPV News live stream about the new Sky04x Pro one TH-cam said he contacted Skyzone and they said the HDMI latency was 11ms! I've actually built a HDMI input lag tester and was shocked to see my old 42" Samsung TV had 24ms of input lag vs 8ms on my 24" monitors. Unfortunately I could get the device to work on my Sky04x v2.