I am more than happy with the battery life despite it being significantly shorter than past models. However, videos like this really help us optimize our settings to find the best possible combination. I think if Boox were to give us the option to toggle BSR, etc. it would result in a better user experience.
Thank you for the thorough testing! I'm very glad I trusted my gut with early reviews of the air 3c and just stuck with the note air 2 plus I bought just days prior to the launch of the new devices. There were things I thought I could genuinely return it for (on my unit the uniformity of warm light is a bit off), but now some time later I don't even see that and I love that I can just charge it every 2 weeks while using it daily.
It was clear that BSR brought a revolution for the utility of e-ink screens. My Note Air 2 was getting less and less used because I was fed up with ghosting, user interface delays and the lack of colour. I was tempted by the Ultra, but the extra weight and still B&W did not convince me to upgrade. I bought the Tab Ultra C, mainly for the colour but the real discovery was the speed. Much snappier, less ghosting. The first generation of the Tab devices had rightly huge batteries without an equivalent increase in weight. I can understand that the NA3C needs to remain thin and light but the decrease in the Tab Ultra C Pro battery makes absolutely no sense. Boox really messed up here because e-ink devices that need to be plugged twice per day don't make much sense.
I honestly don't want a BSR enabled device if the battery issue isn't resolved. I use my Note Air 2 Plus mainly as a notebook. I very rarely refresh to clear ghosting. Writing latency could be better, but it's not bad at all; I hardly notice. Battery life, though, is AMAZING, and it actually feels like a notebook and not tablet since I practically don't need to charge it. I don't worry if I turn it on and see 12% battery; it'll be enough.
A week ago I bought a NA2+ even though the NA3C was already available, and it was for this reason. I was doubting my desicion because we didnt have this video 2 weeks ago, but not anymore. I think color and BSR are cool for people that have the "iPad with an e-ink screen" use case, mine's more of a "bigger e-reader that takes notes" use case.
Interesting analysis. The main point for me is that I'm glad I have the TUC instead of the TUC Pro. Eight hours of battery is getting uncomfortably short. As far as reading, 20 hours for the TUC at low lighting or off is quite good. When the Nook e-reader first appeared, its battery life was a breakthrough. It lasted 30 hours. There was no front light. At that time, a Kindle e-reader was only getting 15 hours. But, everyone was very happy with the battery life of the Kindle and was one of its positive features that everyone would swoon over. At some point, the metrics of battery life isn't practically important. It's like comparing the 0-60 acceleration times of EVs and claiming a car with a 2.3 second time was superior to one with a 6.0 second time, even though 6.0 is faster than 90% of the cars on the road. In practical use, there is no advantage to a 2.3 second time. But at some point, it does start to matter, and an 8-hour life might indeed cross that boundary. It means that I would have to charge it during the day instead of just overnight, and I don't like that. Prospective buyers need to be aware of that. On another note, I almost always use a clip-on LED light when just reading because it gives the absolute best screen appearance, much better than using a front light, and I will use a desk lamp to illuminate the screen when possible while writing for the same reason.
I have a Supernote 5X, previously used for work, everyday all day, and charged when it got close to about two weeks, needed or not. My Supernote is personal use now. I changed to the TUC for work, using it all day, all week, to handwrite and type notes, update, and read references, etc. I don't keep wifi or BT on, do use front lighting a lot. I wake it to use and put in sleep mode if not using. All that means is open/close cover or click power button. I charge it once a week typically Wednesday or Thursday, no matter charge level and may let it update to my cloud, not Boox, but saving to SD. I haven't tried making it thru to Friday, some weeks maybe I could, but most maybe not with my heavy use. This routine doesn't inconvenience me and I value TUC capabilities, especially with recent updates. What I don't care for is it's recharge time, slow. I appreciate seeing this analysis because I was considering upgrading to the TUC pro. Battery-wise, comparatively, it's not as bad as everyone kept trashing it/saying, it's a price paid for that use and capability. I'm thinking stick with the TUC until battery saving options get better ... thanks for a thoughtful and detailed analysis!!
Agreed, there should be a system wide, easy access able on/off switch for fast refresh - for dummies like me (it would be my first complex onyx) - and maybe in every app for those advanced users
Thank you for the review. It is perfectly fine for me to have 3d of equal writing+reading scenario, but it is unacceptable to have such timing in reading mode. Actually, reading prevails in my usage scenarios, so I would be happy to be able to increase those times ~2x. Ability to turn off BSR technology for long reading runs looks critical. By the way, it would be interesting to see in that comparison Supernote A5X device. Despite that fact that Boox Note Air 3C is very good, poor battery life still makes me looking more and more onto Supernote devices (even waiting for A4X, because of the large fraction of PDF 2-column articles?)
Agree, it would be great if we could toggle BSR off for when we're just reading an e-book or making up a PDF. I have a NA2 which is non-BSR and a Tab C which is BSR, and the NA2 works just fine for e-reading and markup.
Wow this is detailed. To me an e-reader’s battery life cannot below 24h with Wi-Fi and light turned on, that’s why I choose kindle every time 😊 I just cannot accept I need to worry about the battery life when I reads, it annoys me.
Thanks for the review. I have a Tab Ultra C and I use it heavily (at least 3-4 hours per day, and maybe 10 hours on the weekend days, and I have never had any worries. I try to charge it every Thursday night or Friday night so that I am ready for the weekend, but I have never had the battery go below 30 percent in the last five months. For what it is worth.
I use mine (air3c) mostly to do marking and can easily have it plugged in. So the anti-ghosting is always better than longer battery life. But that dynamic would change if I was say on holiday or on a long flight.
I had to do a double take on the pacman thing (meaning I hit rewind to watch it again). lol. Really good, but such a tiny moment that only people who watch the entire video would notice. I plan to use HD mode most often when my Boox Nova Air 3 C arrives, but I wonder why Boox doesn't yet distribute a battery life guide that indicates the expected performance of each device with each setting. They ought to get on that.
I bought a NA2+ the other week just in case it's the last device with a decent battery life for a while. I use it with Air 3C and the contrast in battery life is shocking(when readingonly), but the Aic3C is also much much faster with multimedia. So it's rock and hard place scenario for me.
As a new Note air 3C user I find that BSR is nice but not worth the cost in battery consumption! I recommend the Note air 3 instead. I am happy to have the color, but don't really need it as much as I need a device that is reliable power wise and legible without the backlight. Boox needs to give us control of BSR!
I bought a tab ultra black and white and found the battery life unimpressive. You telling me the newer colour ones are even worse!?!? I was thinking a smaller tab mini C would be a nice option that would last longer given reduced screen size. How disappointing.
Thanks for the nice stats! I wondered about your setup for testing the writing endurance in different modes - writing until the battery died? Battery life is crucial to me as I plan to primary use the device for reading and then for writing! I'd love to see a comparison with other brands, most preferentially the Scribe, since I am currently between Boox and Scribe to decide ;-). Got the scribe already and I am really surprised at how little I can mark up books and documents on it. Clearly 1st gen stuff from amazon here.
it is very interesting. I am not sure my conclusion can be right analysis based on your test or not, but I see that Tab Ultra C(not pro one) is the best among other boox devices that has similar form factor in terms of battery efficiency wise. I suppose Pro one and normal Ultra C has no significant difference in real life use case even though I still think that Note air3 c is right product for me. Ultra C and pro both are quite heavier product than others, so this factor anyway lower my interest as it makes more difficult to use in one hand holding for reading. Very interesting video, I look forward to your next nerdy video. :)
Love my TabX, but I get about 2 days of battery life and I never use the front light. Still, it's my favorite device I own and I am a self-admitted Apple fanboy 😊
This is a seriously good and deep video!! Very very useful. Thanks so much for it. I’ve a question: does turning off “refresh after dragging” while in HD mode have any impact on battery consumption?? Cheers !!
Dear Voja, thanks for your perfect review. Just a question: Do you think that the possibility of a BSR turn off/On might be a software implementation from Onyx Boox or it would need an hardware modification?
I honestly don't know, but I since we haven't seen it by now, that leads me to believe that it's probably the case that their GPU wasn't designed so that it could be bypassed, or working in low power state. So it seems like it might be a hardware limitation, although I would find that to be quite strange, if it indeed is the case.
Thanks! I agree... If it is a hardware problem, i am afraid we have to expect a new model very soon... I say this becouse i have just sold my Note Air 2 Plus to buy the Note Air 3C, but I don't know if I wouldn't be better off waiting!
Since EInk consumes power when changing image content, it is not surprising that high power consumption occurs when changing a lot - and BSR hardware changes a lot.
At this point in time I think that we're getting the worst of eink devices (image display and refresh) and amoleds (battery life) by this bump in computing power. What's more, I don't see the point in bumping the power and not the battery life, as I see them as mobile devices for reading a writing. If they are anchored to a power brick as an average table after 8 - 10 hours, what's the point of buying book devices over the other ones?
Hello and thanks for an interesting video, my questions are. What does BSR do, and how does it work? Compared to non BSR - I have an NA2 can it be effected by BSR when I upgraded to the latest software version?
I feel that I need to skip this generation. I currently have a Note3 that is mostly used for notes and reading. With the Note 3, I tend to leave the screen on all day during working hours and can happily go way over a week between charges. A colour screen is something that I would love to have, but the battery consumption combined with the darker screen of the K3 devices make the purchase of a current gen device feel too much like a compromise. The darker screen isn't in the control of Boox, but the battery life is something that they could work on. Let us hope that 2024 brings us a better model
Voja, besides the BSR the newer tabs have upgraded SOCs / CPUs, right? Those would also use more power (presumably). So it would cool if we found out the CPU/Chipset and compared the power draw on those as well. I mean, I'm sure BSR uses more power, but how much is BSR and how much is the CPU is an interesting question. Some app that spun the CPU without updating the screen much could give us a good comparison on CPU battery efficiency. There must be some android perf measurement app that can measure battery drain just for the CPU. It's not perfect because the CPUs might have different sleep states, etc., but would be worth a shot. Likewise, the WiFI / bluetooth chipsets may be different and those might need to be considered.
Newer SoC's use less power, not more. That's how technology goes on those chips. As the manufacturing process gets smaller, the voltage goes down, and then the wattage goes down as well. There are always exceptions, but this is a general rule, that definitely applies to these devices.
There’s also the phenomenon of the ‘race to idle’, where sometimes counterintuitively a faster CPU with higher peak electrical power usage can use less energy overall than a slower, less power-hungry CPU, as basically all modern CPUs can enter a very low power state if there’s no work for them to do. It can work out more efficient to use more power to do the work quickly and get back to that low power idle state as soon as possible, than it would to work more slowly and miss the chance to idle
@@MyDeepGuideit"s not as simple as this, as the core count increases, the Android version is different, other hardware differences , different preinstalled apps, possible stuff draining the battery, more ram using a bit more battery and other imponderables...
Well sure, but if you want to really over-complicate the thing, then add the core efficiency into the mix as well; meaning, a faster core might consume more power while turboing up to 100%, but will also take less time to finish a task than a slower core, that consumes less power at 100% would take longer time processing a task, therefore, possibly draining more power over time. Considering that they all idle at around similar power consumption, which is the more efficient one, and in which situations? Everything can be over-complicated, but there are general rules, and the one I mentioned in combination with examination of technical specifications is a good starting point, when thinking about these things.
That HD value for the NA3 seems quite off to be honest, at least statistically speaking. Or could be that in HD mode the CPU is working harder than the GPU so the NA3 is less affected for some reasons than the other devices? But that would not make any sense, as they have almost the same CPU and GPU and virtually the same color screen.
The main difference is that NA3C doesn't use the Tab version of the OS. That is the only thing that I can think of, that could possibly dictate how the device is instructed to process things. It also makes a lot more sense that the HD mode would be the most battery efficient one, for every device, because it has the lowest refresh rate, meaning, less screen refresh and cleanup instruction cycles, meaning, less battery consumption.
@@MyDeepGuide That is a very good point, I didn't consider that. A different OS can definitely affect the output of the battery consumption as you can have different daemons and process running in the backend, that could affect how the battery is used. Yes, the HD mode has the lowest refresh rate, but should also be the mode that should NOT use the GPU... What is the point in using the GPU if you don't need fast refresh? That should be done by simply polling the CPU as a regular eink screen does, and if you shut down the GPU when you don't need it, you save a ton of battery (as many laptops do when they let you switch between discrete GPU and integrated GPU when using battery power or AC adapter). How many times you repeated the test for the NA3C? Did you get the same higher value all the time I assume?
I have the note 3 air c. I was still struggling understanding your video. I was try to see what is the best way to manage battery consumption. I use it mainly for note taking and some reading and nothing else. Is it better in HD mode or Fast Mode? That's where I was getting lost on your video. Can you provide some clarity? Thanks
Love your in-depth Boox videos! If I may ask for some advice for their Wallpapers/screewnsavers; how do I obtain the Boox Poke 5 wallpaper and screensavers for my Boox Page? Other TH-cam experts and Onyx help people could only manage something generic like "read the manual"...... Hope you can do better?
I will not be hand-holding you through all of the steps, so at some point you do need ro make the actual effort of reading and learning how to use your device, so that you can rely on yourself to solve problems. That being said, the process is as follows: 1. Transfer the images you want to use as wallpapers onto your Boox device. Keep in mind that they need to be in PNG format. I am not sure, but JPG might also work. 2. Images need to be transferred to Screensaver, Pictures, Push, WifiTransfer, Screenshots, or Bluetooth folder on your device. As long as the image is in one of those folders, you will be able to use it. 3. Go to the Screensaver app, choose the second style and tap on "Select Images". 4. Make sure you are in the "Local" tab and select the images that you want the device to cycle through when going into a sleep state. You can use the same method to choose the Power Off image, it is also done from the Screensaver app, there is a dedicated tab called "Power-off Image Setting".
I am more than happy with the battery life despite it being significantly shorter than past models. However, videos like this really help us optimize our settings to find the best possible combination. I think if Boox were to give us the option to toggle BSR, etc. it would result in a better user experience.
Thank you for the thorough testing! I'm very glad I trusted my gut with early reviews of the air 3c and just stuck with the note air 2 plus I bought just days prior to the launch of the new devices. There were things I thought I could genuinely return it for (on my unit the uniformity of warm light is a bit off), but now some time later I don't even see that and I love that I can just charge it every 2 weeks while using it daily.
It was clear that BSR brought a revolution for the utility of e-ink screens. My Note Air 2 was getting less and less used because I was fed up with ghosting, user interface delays and the lack of colour. I was tempted by the Ultra, but the extra weight and still B&W did not convince me to upgrade. I bought the Tab Ultra C, mainly for the colour but the real discovery was the speed. Much snappier, less ghosting. The first generation of the Tab devices had rightly huge batteries without an equivalent increase in weight. I can understand that the NA3C needs to remain thin and light but the decrease in the Tab Ultra C Pro battery makes absolutely no sense. Boox really messed up here because e-ink devices that need to be plugged twice per day don't make much sense.
I honestly don't want a BSR enabled device if the battery issue isn't resolved.
I use my Note Air 2 Plus mainly as a notebook. I very rarely refresh to clear ghosting. Writing latency could be better, but it's not bad at all; I hardly notice. Battery life, though, is AMAZING, and it actually feels like a notebook and not tablet since I practically don't need to charge it. I don't worry if I turn it on and see 12% battery; it'll be enough.
Yeah, it is a very important aspect of e-ink devices, that is basically completely lost with BSR.
I wonder if giving option to disable/enable BSR could be implemented in software update...
A week ago I bought a NA2+ even though the NA3C was already available, and it was for this reason. I was doubting my desicion because we didnt have this video 2 weeks ago, but not anymore. I think color and BSR are cool for people that have the "iPad with an e-ink screen" use case, mine's more of a "bigger e-reader that takes notes" use case.
Interesting analysis. The main point for me is that I'm glad I have the TUC instead of the TUC Pro. Eight hours of battery is getting uncomfortably short. As far as reading, 20 hours for the TUC at low lighting or off is quite good. When the Nook e-reader first appeared, its battery life was a breakthrough. It lasted 30 hours. There was no front light. At that time, a Kindle e-reader was only getting 15 hours. But, everyone was very happy with the battery life of the Kindle and was one of its positive features that everyone would swoon over. At some point, the metrics of battery life isn't practically important. It's like comparing the 0-60 acceleration times of EVs and claiming a car with a 2.3 second time was superior to one with a 6.0 second time, even though 6.0 is faster than 90% of the cars on the road. In practical use, there is no advantage to a 2.3 second time. But at some point, it does start to matter, and an 8-hour life might indeed cross that boundary. It means that I would have to charge it during the day instead of just overnight, and I don't like that. Prospective buyers need to be aware of that.
On another note, I almost always use a clip-on LED light when just reading because it gives the absolute best screen appearance, much better than using a front light, and I will use a desk lamp to illuminate the screen when possible while writing for the same reason.
I have a Supernote 5X, previously used for work, everyday all day, and charged when it got close to about two weeks, needed or not. My Supernote is personal use now. I changed to the TUC for work, using it all day, all week, to handwrite and type notes, update, and read references, etc. I don't keep wifi or BT on, do use front lighting a lot. I wake it to use and put in sleep mode if not using. All that means is open/close cover or click power button. I charge it once a week typically Wednesday or Thursday, no matter charge level and may let it update to my cloud, not Boox, but saving to SD. I haven't tried making it thru to Friday, some weeks maybe I could, but most maybe not with my heavy use. This routine doesn't inconvenience me and I value TUC capabilities, especially with recent updates. What I don't care for is it's recharge time, slow. I appreciate seeing this analysis because I was considering upgrading to the TUC pro. Battery-wise, comparatively, it's not as bad as everyone kept trashing it/saying, it's a price paid for that use and capability. I'm thinking stick with the TUC until battery saving options get better ... thanks for a thoughtful and detailed analysis!!
Really looking forward to your review of the new software!
Agreed, there should be a system wide, easy access able on/off switch for fast refresh - for dummies like me (it would be my first complex onyx) - and maybe in every app for those advanced users
Thank you for the review. It is perfectly fine for me to have 3d of equal writing+reading scenario, but it is unacceptable to have such timing in reading mode. Actually, reading prevails in my usage scenarios, so I would be happy to be able to increase those times ~2x. Ability to turn off BSR technology for long reading runs looks critical.
By the way, it would be interesting to see in that comparison Supernote A5X device. Despite that fact that Boox Note Air 3C is very good, poor battery life still makes me looking more and more onto Supernote devices (even waiting for A4X, because of the large fraction of PDF 2-column articles?)
Agree, it would be great if we could toggle BSR off for when we're just reading an e-book or making up a PDF. I have a NA2 which is non-BSR and a Tab C which is BSR, and the NA2 works just fine for e-reading and markup.
Wow this is detailed. To me an e-reader’s battery life cannot below 24h with Wi-Fi and light turned on, that’s why I choose kindle every time 😊 I just cannot accept I need to worry about the battery life when I reads, it annoys me.
Thanks for the review.
I have a Tab Ultra C and I use it heavily (at least 3-4 hours per day, and maybe 10 hours on the weekend days, and I have never had any worries. I try to charge it every Thursday night or Friday night so that I am ready for the weekend, but I have never had the battery go below 30 percent in the last five months. For what it is worth.
Thank you for this, my balanced will pass to fast or HD depending on the app :D my Note Air 3C will be happy and also me :D
I use mine (air3c) mostly to do marking and can easily have it plugged in. So the anti-ghosting is always better than longer battery life. But that dynamic would change if I was say on holiday or on a long flight.
You can use a power bank. What kind of crazy person would read for more than 8 hours without stopping?
I had to do a double take on the pacman thing (meaning I hit rewind to watch it again). lol. Really good, but such a tiny moment that only people who watch the entire video would notice. I plan to use HD mode most often when my Boox Nova Air 3 C arrives, but I wonder why Boox doesn't yet distribute a battery life guide that indicates the expected performance of each device with each setting. They ought to get on that.
I bought a NA2+ the other week just in case it's the last device with a decent battery life for a while. I use it with Air 3C and the contrast in battery life is shocking(when readingonly), but the Aic3C is also much much faster with multimedia. So it's rock and hard place scenario for me.
As a new Note air 3C user I find that BSR is nice but not worth the cost in battery consumption! I recommend the Note air 3 instead. I am happy to have the color, but don't really need it as much as I need a device that is reliable power wise and legible without the backlight. Boox needs to give us control of BSR!
I bought a tab ultra black and white and found the battery life unimpressive. You telling me the newer colour ones are even worse!?!? I was thinking a smaller tab mini C would be a nice option that would last longer given reduced screen size. How disappointing.
Thanks for the nice stats! I wondered about your setup for testing the writing endurance in different modes - writing until the battery died? Battery life is crucial to me as I plan to primary use the device for reading and then for writing! I'd love to see a comparison with other brands, most preferentially the Scribe, since I am currently between Boox and Scribe to decide ;-). Got the scribe already and I am really surprised at how little I can mark up books and documents on it. Clearly 1st gen stuff from amazon here.
it is very interesting. I am not sure my conclusion can be right analysis based on your test or not, but I see that Tab Ultra C(not pro one) is the best among other boox devices that has similar form factor in terms of battery efficiency wise. I suppose Pro one and normal Ultra C has no significant difference in real life use case even though I still think that Note air3 c is right product for me. Ultra C and pro both are quite heavier product than others, so this factor anyway lower my interest as it makes more difficult to use in one hand holding for reading. Very interesting video, I look forward to your next nerdy video. :)
Love my TabX, but I get about 2 days of battery life and I never use the front light. Still, it's my favorite device I own and I am a self-admitted Apple fanboy 😊
Thank you for the review
The battery is also getting lower in capacity.
This is a seriously good and deep video!! Very very useful. Thanks so much for it. I’ve a question: does turning off “refresh after dragging” while in HD mode have any impact on battery consumption?? Cheers !!
I'm having trouble finding videos demonstrating BSR in action. Do you know of any examples?
Question : I know about the dark mode in amazon scribe - is it existing in other systems as well ?
Dear Voja, thanks for your perfect review. Just a question:
Do you think that the possibility of a BSR turn off/On might be a software implementation from Onyx Boox or it would need an hardware modification?
I honestly don't know, but I since we haven't seen it by now, that leads me to believe that it's probably the case that their GPU wasn't designed so that it could be bypassed, or working in low power state. So it seems like it might be a hardware limitation, although I would find that to be quite strange, if it indeed is the case.
Thanks! I agree... If it is a hardware problem, i am afraid we have to expect a new model very soon... I say this becouse i have just sold my Note Air 2 Plus to buy the Note Air 3C, but I don't know if I wouldn't be better off waiting!
Since EInk consumes power when changing image content, it is not surprising that high power consumption occurs when changing a lot - and BSR hardware changes a lot.
At this point in time I think that we're getting the worst of eink devices (image display and refresh) and amoleds (battery life) by this bump in computing power. What's more, I don't see the point in bumping the power and not the battery life, as I see them as mobile devices for reading a writing. If they are anchored to a power brick as an average table after 8 - 10 hours, what's the point of buying book devices over the other ones?
This is no longer just a book device. you can buy a book device for $50-100
Hello and thanks for an interesting video, my questions are. What does BSR do, and how does it work? Compared to non BSR - I have an NA2 can it be effected by BSR when I upgraded to the latest software version?
Really interested, is it possible to add Tab Ultra C to this comparison? also the refresh mode comparison.
are these benchmarks available on google sheets somewhere?
Not at this moment.
are they available for viewing in chart form anywhere? Went to your site but didn't see them easily accessible@@MyDeepGuide
The short battery life of BSR devices is disappointing, I'm not even sure I need BSR. Max Lumi doesn't have BSR but I love using it anyway.
Very nerdy but interesting video.
What is the battery life of an android amoleddl tablet (or an iPad) ?
I feel that I need to skip this generation.
I currently have a Note3 that is mostly used for notes and reading. With the Note 3, I tend to leave the screen on all day during working hours and can happily go way over a week between charges.
A colour screen is something that I would love to have, but the battery consumption combined with the darker screen of the K3 devices make the purchase of a current gen device feel too much like a compromise. The darker screen isn't in the control of Boox, but the battery life is something that they could work on.
Let us hope that 2024 brings us a better model
Voja, besides the BSR the newer tabs have upgraded SOCs / CPUs, right? Those would also use more power (presumably). So it would cool if we found out the CPU/Chipset and compared the power draw on those as well. I mean, I'm sure BSR uses more power, but how much is BSR and how much is the CPU is an interesting question.
Some app that spun the CPU without updating the screen much could give us a good comparison on CPU battery efficiency. There must be some android perf measurement app that can measure battery drain just for the CPU. It's not perfect because the CPUs might have different sleep states, etc., but would be worth a shot.
Likewise, the WiFI / bluetooth chipsets may be different and those might need to be considered.
Newer SoC's use less power, not more. That's how technology goes on those chips. As the manufacturing process gets smaller, the voltage goes down, and then the wattage goes down as well. There are always exceptions, but this is a general rule, that definitely applies to these devices.
There’s also the phenomenon of the ‘race to idle’, where sometimes counterintuitively a faster CPU with higher peak electrical power usage can use less energy overall than a slower, less power-hungry CPU, as basically all modern CPUs can enter a very low power state if there’s no work for them to do. It can work out more efficient to use more power to do the work quickly and get back to that low power idle state as soon as possible, than it would to work more slowly and miss the chance to idle
@@MyDeepGuideit"s not as simple as this, as the core count increases, the Android version is different, other hardware differences , different preinstalled apps, possible stuff draining the battery, more ram using a bit more battery and other imponderables...
Well sure, but if you want to really over-complicate the thing, then add the core efficiency into the mix as well; meaning, a faster core might consume more power while turboing up to 100%, but will also take less time to finish a task than a slower core, that consumes less power at 100% would take longer time processing a task, therefore, possibly draining more power over time. Considering that they all idle at around similar power consumption, which is the more efficient one, and in which situations?
Everything can be over-complicated, but there are general rules, and the one I mentioned in combination with examination of technical specifications is a good starting point, when thinking about these things.
That HD value for the NA3 seems quite off to be honest, at least statistically speaking.
Or could be that in HD mode the CPU is working harder than the GPU so the NA3 is less affected for some reasons than the other devices? But that would not make any sense, as they have almost the same CPU and GPU and virtually the same color screen.
The main difference is that NA3C doesn't use the Tab version of the OS. That is the only thing that I can think of, that could possibly dictate how the device is instructed to process things.
It also makes a lot more sense that the HD mode would be the most battery efficient one, for every device, because it has the lowest refresh rate, meaning, less screen refresh and cleanup instruction cycles, meaning, less battery consumption.
@@MyDeepGuide That is a very good point, I didn't consider that. A different OS can definitely affect the output of the battery consumption as you can have different daemons and process running in the backend, that could affect how the battery is used.
Yes, the HD mode has the lowest refresh rate, but should also be the mode that should NOT use the GPU... What is the point in using the GPU if you don't need fast refresh? That should be done by simply polling the CPU as a regular eink screen does, and if you shut down the GPU when you don't need it, you save a ton of battery (as many laptops do when they let you switch between discrete GPU and integrated GPU when using battery power or AC adapter).
How many times you repeated the test for the NA3C? Did you get the same higher value all the time I assume?
a nice case with a bigger battery built in would help
The solution is not a bigger battery, but smarter implementation and utilization of existing technology.
@@MyDeepGuide of course that's a preferred solution, but given that might not happen, a battery case could be a stop-gap
I have the note 3 air c. I was still struggling understanding your video. I was try to see what is the best way to manage battery consumption. I use it mainly for note taking and some reading and nothing else. Is it better in HD mode or Fast Mode? That's where I was getting lost on your video. Can you provide some clarity? Thanks
If you re-watch and listen to what I say, especially at the end of the Refresh Modes chapter, I say that directly.
Better always on BSR, than always off
The chart and the texts of your hard working are all very tiny and not able be seen with my poor eyesight.
More Pacman😂
Technically, Pac-Man should be eating ghosting too!
He already did, now he came to "collect" for his services :)
Love your in-depth Boox videos!
If I may ask for some advice for their Wallpapers/screewnsavers; how do I obtain the Boox Poke 5 wallpaper and screensavers for my Boox Page?
Other TH-cam experts and Onyx help people could only manage something generic like "read the manual"......
Hope you can do better?
I will not be hand-holding you through all of the steps, so at some point you do need ro make the actual effort of reading and learning how to use your device, so that you can rely on yourself to solve problems.
That being said, the process is as follows:
1. Transfer the images you want to use as wallpapers onto your Boox device. Keep in mind that they need to be in PNG format. I am not sure, but JPG might also work.
2. Images need to be transferred to Screensaver, Pictures, Push, WifiTransfer, Screenshots, or Bluetooth folder on your device. As long as the image is in one of those folders, you will be able to use it.
3. Go to the Screensaver app, choose the second style and tap on "Select Images".
4. Make sure you are in the "Local" tab and select the images that you want the device to cycle through when going into a sleep state.
You can use the same method to choose the Power Off image, it is also done from the Screensaver app, there is a dedicated tab called "Power-off Image Setting".