I Tested this Apple Watch Body Fat Scale (vs DEXA Scan)
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- เผยแพร่เมื่อ 14 พ.ย. 2022
- AURA Strap 2 is the only way to measure your body fat, body composition, muscle mass & more on the Apple Watch. Is the AURA Strap worth it? I put it to the test against a DEXA Scan to see how accurate the body fat measurements actually are.
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Fire video my guy, that's for having me in the vid 💪🏻 It was a freaking blast
we got a celeb in the comments!!! honor to have you - come back again soon :)
I did a DEXA Scan in March at 225 pounds around 28% fat. In November I showed up at 197 pounds. It said I lost 18 pounds of lean mass and 10 pounds of fat and overall my bodyfat percentage only went down 1%. Shows I need to lift weights, and not just cut calories, and get in enough protein.
love it! consistency is the most powerful tool
Probably also because the dexascan is not accurate
That’s a very important point you’ve raised, that a lot of people don’t take into consideration.
An 85kg person with 10% body fat has 8.5kg of body fat mass. A 65kg person with 10% bf will have 6.5kg.
So, what needs to be borne in mind is that these percentages are in PROPORTION to your total mass. People often overlook that, and try to attain incredibly low levels of body fat which professional 100+kg body builders want. Not realizing, that 8% bf for a professional bodybuilder in kg may be 15% bf for a marathon runner. Both look like they have hardly any body fat, as it is proportional to their total mass.
I have a hard time believing you lost 18 pounds of lean body mass and 10 pounds of fat. Unless you consumed a very small amount of protein and laid in bed the entire time how could you have lost muscle.
@@devinjansa9329 Yeah, something is not adding up on this one. Just basic biology would have him losing far more fat than lean mass on a caloric deficit diet. I think the scan is inconsistent. Unless he was lifting and had unsustainable gains (less than likely).
FINALLY! You're popping off and the videos are incredible, and the performance is amazing. So happy for you man - you EARNED THIS.
Thank you!! Just getting a little better each day
You are guiding my fitness journey rn, every video is much appreciated
That's awesome! whats your next fitness goal?
@@ShervinShares dialing in tracking calories vs calories out/sleep and developing a more consistent workout routine!
@@iJoshyify info brother info how is it steppin?
Just discovered your channel, liked, and subscribed! Thanks for the video
Renpho seems to be more accurate on athletic people, but I think it is worth it if you just want to see a trend. Like, I don't have access to dexa scan, but working on building muscle, so all I want to see if my muscle mass is increasing and whether my fat percentage is decreasing. I don't care about it being super accurate, I just want to see where I am going, so renpho will be enough for my purposes. Thanks for this little experiment. Merci Shervin Jan.😊
How does a skin fold measurement compare. That would be interesting.
I think the word Tejas was looking for is "precision". It's important to know the difference between precision and accuracy, which, to be fair you all probably do if you're into fitness trackers and data, but some people do use them synonymously. Another great video Shervin.
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Very interesting video, keep going!
The first minute of this video is so well done I can’t
hehe yay!!
Good informative video👍🏾
Keep up the great videos, you’re killing it!
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Top video quality and content, you have a new sub!🎉
Great vid! Subbed because of the wicked stache. When you hit 1mil+ subs, just know I was here at 32k! Good luck my friend!
New favorite channel 😅
I fkn love your videos! Would love to a see a video about how you actually use all of the data that you're collecting maybe as a day /week in the life?
day/week in the life of a cyborg?? honestly a lot of the data is just extra, not necessary. AND i love this idea... coming soon!
This was a great snap test. I was hoping you would add in the trusty ol’ calipers! Any reason you skipped it?
ahhh i didn't have any! next time!
Great video!
Don't know why but it is so hilarious watching you guys do this
So the way the Renpho and Aura ones work is from passing electricity through the body.
Electricity will take the shortest route to create a circuit. So given Tejas body, it might be differences in leg and upper body body fat. As the renpho will just look at legs and Aura upper body. However, there is clearly still a strong margin of error. When compared to dexus.
Your channel's going to blow up soon
Loved the vid however wanted to say the Renpho scale is fairly accurate. However you have to put in your body measurments, you can’t just step on and hope it works
I was going to comment this. I think that is why the young kids renpho measurement is so off. I think he is stepping on to the scale that has someone else's numbers entered in.
Bro, which app are you using on the watch for measuring??? I can’t find it on series 7 watch?
Did tejas do “athlete mode” on renpho? Massive difference to the regular setting
You should've tried Greg's Laser eye test too
It would have been nice if you'd tried a cheap caliper too!
How are accurate are the other measurements that the aura device takes and have you tested the 2
Accuracy is expensive. But I was surprised to see how well the Apple Watch accessory performed. Seemed to have a margin of error consistent among the three applicants in the trial, and I’d be comfortable using it tract to changes.
yeah, I noticed that too. around 3-5% give or take
How come nobody is talking about the fact that it measures electrical signals passing through the body but they're wearing a whoop and he's wearing a CGM which penetrates the skin all things that can cause interference with said signal. Maybe that's affecting accuracy, especially at they claim 95% accuracy to dexa
So by the results - the Aura is actually good. It is always like 3-6% less than Dexa. That is good. And appears always to be less. So get Aura strap and then just mentally add a few percent. Aura claim 95% accuracy vs DEXA and these numbers seem close.
I like your work 👏🏾👍🏾
Thank you! Cheers!
The variations between different scales is interesting. I gotta assume the DEXA is the most accurate. Also the point Tejas brought up in the video where as long as the scale is consistently showing a certain body fat and that goes down when you lose weight that is what matters most. I gotta find somewhere around me to try a DEXA scan.
"look at trends, not the exact numbers" - that's the philosophy i try to follow with all consumer health/fitness tech
@@grandjunctionguy why is it crazy innacurate?
@@axhraf7712 For this price it is hilarious that people still are doing it. Just look in the mirror bro it is gonna be always more accurate
These scales also depend on factors such as how much water you've consumed in the day, whether you consume creatine, how much you ate the day itself etc. So realistically you would want to replicate all of these factors.
yeah problem is when the device reading is so off, it's hard to even read the trends from that device cause you dont know if that device can first of all read what we are trying to measure, two if it has linear correlation reading (so if it reads 70 for 90, 80 for 100, then we know it has a linear correlation but sometimes devices might not be calibrated and have exponential or even random correlation such as 70 for 90 and 80 for 140, 60 for 150). so I dont know what to trust after seeing this video. The best way is to track your waist and neck circumference and just go visually i guess.
Wyze is the same cost as the Renpho and is much closer and less variable between measurements (rarely more that 0.1% difference day to day).
You should have compared with Amazon halo body fat measurement from pictures!
What app you are using in Apple Watch?
Make sure you add the classic ‘skinnies’ skin fold test with calipers. Ps +1 follower
Greetings from Germany love your content
Hey, thanks!
Great test - like to see if the numbers are all off by the same %.
If aura and DeXA both dropped by 2% then aura is usable but if it went up and DeXA down then a waste
You got the renpho app settings wrong. If you're an athlete or exercise a lot or have above average muscle, use athlete mode otherwise standard mode
Lol you could literally walk into that DEXA scanner 5 mins later and it would show anywhere between 1 to 4% of difference. Dexa is a good reference, but accuracy is highly overstated and expensively so. Callipers are your best friends to have a good enough reference if you know how to use it properly.
I feel like Tagis was on your profile for the Renpho by accident lol
lolololol
The Greg clips😂😂
Would've loved to see a Galaxy Watch4/5 also being compared, since they have that feature built in
Who?
I found the optical Amazon halo to be remarkably close to my dexa scan
Can you try galaxy watch 5 and compare with dexa.
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I tried the Aura strap 2 as well. I put it on and it said I achieved my goal and I put it right back in the box and sent it back. Compared to all the scales I’ve been on which are all close, the strap was way off.
hmmm yes i tried v1 & v2 - neither were that useful for me.
I’m not a physically fit specimen, I’ve been working on it hard since June but for it to say I’ve met my goals and then I look up in the mirror I knew something was wrong 😂
With these devices it really depends where you carry your fat. Ideally they would measure from head to foot and that would get your torso and legs where most people carry their fat. If you carry your fat mostly in your legs like I do, then a scale one will be more useful for tracking progress. If you carry more in the back and belly, then handheld device will be more useful. Or, you can look in the mirror and weigh yourself. For me, I know I’m doing well when the top 2 abs are fully visible. That’s about 15% and 200lbs when I’m well conditioned. Right now I’m on a weight loss regimen because I blew up to 250lbs in 2020, I made it back down to 215ish in 2021, got comfortable and stopped tracking calories, and now I’m 225 but with better conditioning than last year. So my goal for next year will be to get down to 200lbs and maintain it. Already started tracking calories and macros again this week since thanksgiving is my DGAF eating holiday. Lol
Your content is out of this word
Thank you! that means a lot! what video should I make next?
Brooo I thought you had at least 1 million subscribers😱
So the aura strap can measure ur body fat ?
For the renpho saying you only had 12% did you set it up in athlete mode? Cause they will change a lot. Try switching it to the other mode. For me, when I do the other mode it says I have like 38% body fat which I compared to online photos of 40% body fat and I’m no where close. Switched it to athlete mode and it came in around 20ish something which made way more sense given the amount of fat and muscle I have.
Very true. I was on normal mode and went from 29% to 20%. Like you when I saw 20% photos online I thought let me try athlete. It came back 11% and I was shocked! In my case compare to online photos the 11% was more accurate but as my resting rate is 60ish and because I don’t do enough minutes per day I set it back to normal mode and am 19%.
Next time try hydrostatic weighing or bodpod. Dexa is suspect.
Here before this channel blows up !
ayoooo
Bro you having only 25K subscribers physically pains me.
Tell me about it! Comments like yours make my day tho :)
@@ShervinShares this made me subscribe. Only watched your channel when TH-cam suggested.
your wish is my command subbed
Subbed
He’s richer than you move on with your life
Haha what we learned today is that you’re all very fit and I need to get up and go work out! Lol
I use the Fit Index scale & app.
yes i think it's almost exactly the same as Renpho
Im pretty impressed with the Renpho accuracy for $30.00, the Aura is cool but seems off.
You do know that aura was pretty close
I‘m 8.8% on DEXA but as long as I have good visibility on my abs I‘m good.
If Greg watched this he’d yell at you to use the pinch method. 😂
HAHAHAHA
Do the bod pod next
i didn't even know this existed! TY
If anyone asks you why you are standing with the Aura body fat scan pose, tell them you are saving your game in rl.
what color watch is tagis wearing? silver or starlight ?
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Here in Brazil a DEXA scan is $40! (Labchecap - SALVADOR BAHIA)
Yesssss my man.
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">" its greater btw
That dude has his Renpho set up wrong 😂
Look like that 1% for visceral visceral is pattern fir
150 bucks for an Apple Watch band that tells you your body fat %. I’ll pass, and use my 30 dollar Renpho scale. After all, it’s about the trends right? Why can’t they make something like this and have it do the activity/sleep tracking? I unknowingly got a tattoo where the Apple Watch sits before I knew about the Apple Watch not working over tattoos. I’d def buy a strap like this if it did all the other tracking, cause the bottom side of my wrist isn’t tattooed.
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This was fun😂 In my opinion renphon is nearly accurate as dexa , tejas might have fucked up in doing on renpho scale , there's no way it would be that much of a difference in dexa and renpho. i'm not sure where to place those fat measuring straps. need another video i guess
He had athlete mode on
will that band work with an apple watch 6?
Yes!
6:31 that pigeon
2:20 😂😂 that’s what she said
I considered buying a galaxy watch because of the bio impedance sensor.
I bet Tejas has his renpho set to athlete mode.
How does that apple watch work? The percentages don't add up at all
The watches are useless for people with a lot of chest muscle or muscular people in general. It's because the send an small electric signal through the chest and the resistance is used to calculate the bf% again a known table.
Golden standard would be full body mri. Autopsy would be water free probably
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Babe wake up, Shervin posted
HAHA BEST COMMENT EVER
So interesting how all over the place these measurements are
Yea I think nothing is truly accurate. But looking at trends over time can be valuable
@@ShervinShares yeah that’s why I stick with my Renpho ))
to meassure it accurately in apple watch you have to be empty stomach in the morning after moving bowel & urinate first & do not drink water then meassure your weight in a weighing scale then it will accurately detect your body fat.. it is because of the inaccurate weight due to full stomach & full of liquids in your body that is why you are heavier & that is why the fat percentage is lower..
The Renpho scale sends an electrical impulse up one leg and down the other and then uses some algorithm to calculate body fat % based on how long it takes for the impulse to travel that path. The Apple Watch strap does the same but sends the impulse through your upper body.
So I'm guessing Tejas has some pretty skinny legs without much fat, but we all saw that he has a pretty flabby tummy 😄That's why his readings were so wildly inaccurate. Although I haven't seen them naked (lol), Mike and Shervin both appear to be more athletic and "balanced", which is why their readings aren't toooo far off.
My Renpho said 12.4% this morning, but I'm gonna order that strap too and see what it says. I've always wanted to do a Dexa scan but now realize I don't really have to, my body is also pretty athletic and balanced so the deviation should be similar. Thanks for saving me $200 @ShervinShares!
P.S. Love your channel 🙂See ya at 100k subs and beyond
flabby tummy 🤨. nah youre right hahahah
@@TejasHullur didn't mean anything by it 😅 But it is what it is lol
My experience with the Renpho is it's literally just a mapping from my weight to a body fat %. The same weight gives me the same body fat % every time, over multiple months or even years
I’m pretty sure the Renpho scale has an “athlete” mode. If you turn this on, it assumes you partake in intense activity either daily or weekly which causes the readings to be lower than it actually is. Which is what I’m assuming Tejas had his on. I turned mine off and found consistency between Renpho and the 3 point caliper test.
Under is “”
The actual info starts at 8:20
It's not the accuracy, it's the consistency.
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My Samsung galaxy watch 5 said I am 21%, but I just finished dieting and am sitting around 8-9% now after my bodybuilding competition. These watches are horribly inaccurate.
I think the biggest thing about this comparison is aura sure is way off but seems to be closer to the nexa.
yes Aura seems to be more accurate! I think because it measures your torso body fat rather than lower body (like Renpho)
Poor Tejas lmao but anything sub 25 is hard af to maintain someone let him know he’s okay lol
The aura seems to be between 5%~6% lower than DEXA across the board with you 3. So that being said it’s at least consistent.
yes! I want to do a round 2 test or multiple tests over time to see how it holds up. And maybe compare to Amazon Halo or Samsung Watch with Body Fat measurements
Whats the rationale of checking your body fat percentage everyday? Can you really drop percentage on a day to day basis? 🤔
If you want to drive yourself crazy, check it everyday. Hydration can affect your percentage with Dexa and bio-impedience. Even with Dexa, it’s recommended that you use the same machine when measuring changes.
9:50 for the answer you’re welcome
7:50 "so you're on the JACKED section slightly towards WIRV..." It's WIRY, not WIRV I thought. But what do I know as a non-English native speaker😅
You sound like CBUM bro it’s so relaxing
whos that?
My worst day every in NYC.
LOL most inspirational day every! #FitnessTransformation
There's no way Tejas is actually 29% bf.
Imma steal this guy's line, Imma get myself one of them Tanita body fat scales and offer measurements, only I'm straight so I'll be telling girls to get fully nekkid to enable my precision instrument to work like it's supposed to, hell, I'll even throw in free nutrition advice.
As mentioned in the video. It doesnt really matter what the number you’re getting. It’s the trend.
Being consistent in tracking your progress and controlling the variables. This is what’s important.
Like using a different scale, it’s gonna be off ever so slightly. What matters is using the same scale. Tracking around the same time, under the same conditions.
So if you weigh yourself in the morning after you use the restroom. You should aim to always weigh yourself in the morning after using the restroom. Control the variables and track progress over time
theres no way your friend Tejas has 29% body fat. no way.
Nice comparison 😂
thank you! what should I compare next?
@@ShervinShares may be accuracy of fitness watches like apple
I have requested the band like when it got just announced, waited for weeks and the band never arrived, had to request a refund. 😢
you guys should show your body just for a visual comparison
> is a greater than symbol 😂. Did no one else notice that?
i messed up... lol
Tejas is no where near 12.5% he’s around 22.5% if i was to guess.