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"I don't like listing specs of watches, so let's get right to it" - That's awesome, performance is what ultimately matters. Great review and enjoy your videos.
As a PhD student in AI, I greatly appreciate your quantifiable approach to comparing smartwatches. May I suggest using correlation coefficient to compare the GPS signals to find out how correlated they are? Also, I would like if you could compare against the correlation coefficient value for GPS signals from a cellphone on your pocket. I think using it would give a quantifiable measure of agreement between bike trip tracks, which is what your channel is all about ;)
Hey, I'm curious about your thoughts on the challenges of applying AI to sleep stage inference. Provided you have a sufficiently large dataset of wearer metadata (age, weight, gender, device location, etc), raw sensor data of a target device (fitbit, whoop, etc), and the sleep stage inference results from a reference device - could one be successful in training an ML model that more accurately infers sleep stages? According to the results from Rob's research, it looks like the major devices of today are no worse than 30% off a given reading from his reference device - I could be wrong but I don't believe they currently use ML to determine sleep stages. I feel it would be difficult getting enough cases for the training data - but if you partnered with a few sleep study clinics, you could have a few thousand cases in a couple years.
Amazing video! I'm an engineer and totally understand your point 😊 Can I ask which battery saving smartwatch setup have you used on the GTS4 used on these tests? In my experience with previous GTS models, that can influence the quality of measurements. Thank you 😊
Hi, I'd love to know if recent updates improve the performance of thos and other watches. Something like 1 year update or something, that would also give us a better notion of how the manufacturers take care of sold watches
great channel mate, loving the objective evidence-based reviews.. One thing that might enhance understandability might be the units of time along the x-axis. E.g., does 19:10, 19:20 = 7:10pm, 7:20pm? or 19m:10s, 19m:20s? Might seem obvious but I can't be sure... I presume the interval is 10s rather than 10m?
I had the MI band 7 but gave it away cos it did not track my sleep properly. If I went to bed at say 10pm but fell asleep at 1am it showed my sleep started from 10pm which is inaccurate
Thank you for all all your good detailed videos! Would like to see you test out more of the garmin watches like FR 265 and the new epix and fenix series?
I'm a bit surprised that the actual sleep detection isn't part of the sleep tracking test. Stage detection is definitely important, but for example Apple Watches just don't detect sleep outside of set sleep schedule, while things like GTS 3 (at least) do quite well to pick up the fact that I sleep whenever it happens.
Unfortunately, Apple watch is the only one that really lives up to claims. I am not going to buy an iPhone for that. I do not like the restrictive Apple environment, their price system, the "unrepairability", and their ways to oversimplify every product. The Blood sugar measurement they may introduce into their product will be a hit, if it works same well. I think that all smartwatches that have health monitoring functionality should conform to minimum standards. Otherwise, the vendor should say clearly it's for entertainment purposes, and not be allowed to prominently market health functions.
Never liked apple from the beginnning, about 2 decades ago when i bought my first mp3 player, this was way before smartphones, maybe 25 yrs ago when the Rio was king of mp3 player but there was also the ipod, i hated apple from that moment and avoided them, the design always struck me made for people with special needs, i prefer "normal" design.
- I can't help but noticed between 1:45 and 1:52 where you mention "very little movement," the devices are being violently shaken (shook?). - BTW... Why do you not report on SpO2 during sleep on those devices that support that feature? Like Garmin's "all-day and in sleep"? In fact, Garmin is so egregiously inaccurate, their own forums are peppered with "why so bad" and apnea-fear posts, for YEARS. My Garmin reads SpO2 consistently 5-12% lower than actual for sleep or awake spot checks against a Wellue SleepU, an EMAY EMO-80 or a Veridian 11-50K, those three rarely in disagreement, 2% at worst. The Wellue and EMAY are U.S. FDA Class II along with various international medical and industrial registrations and certifications. - Thanks for the reports on the Amazfit GTR/S 4. Disappointing. I'm glad I went with Garmin; well built, feature rich and relatively affordable.
Hi. I really appreciate your channel and the amazing work analyzing these smartwatchs! I am looking forward to your review of the Redmi Watch 3! Congrats for your wonderful channel!
Awesome videos!!! Any change to test a Xiaomi S1 watch or even better the S2 (I think that only exist the chinese version) ? Or give your opinion were its performance can be ?
@@TheQuantifiedScientist Set Pulse Ox Tracking Mode to During Sleep. And Data Recording to Every Second. Does your sleep SpO2 drop below 90% (often to 82% or less) on a consistent basis?
Something I'd love to see in your reviews is step counter performance when attached to the ankle. I want to find a fitness tracker that would calculate my steps while I'm working with a treadmill. I work on the computer so my arms don't move when I'm on it and I can't get step counts. My old fitbit charge 2 used to track accurately but my Garmin Vivoactive 4 is useless when attached to the ankle.
scrolled through just because i have the first GTS, didn't know it was on the 4 already. and damn, i can only suppose mine is even worst being the first..
Man if you're going to recommend any alternatives, at least make those recommendations in the similar price range. Everyone knows apple watches are the most accurate, but most of us can't afford them that's why we're having to look at reviews like these
Hey! Could you maybe try this same watch again (since it performs particularly worse than most), but next time by strapping it to your arm (bicep) with a different band? In the past, I have seen that I get better readings from watches that don't perform well on the wrist and I would be interesting to see if there is actually a difference or just placebo😊. Keep up with your work!
Amazfit Active is supposedly, wording differs on different sites, gather 35% more data/be 35% more accurate on biotracking data. Since this seems to be your last amazfit video currently, are you working on Amazfit Active review too?
Exactly. I laughed at the end because his scientific method failed to include the most important factor - price to value ratio. Any $800 watch is supposed to outperformed a $100 watch, duh…
GTS 4 has received numerous firmware updates, claiming it increased HR detection quality, calorie calculation etc. Could you, please, make an update to the review?
Hello Rob, are you going to test the huawei watch ultimate? Do you have a friend who likes swimming to include this sport in your tests of good heart rate detection?
Watching all your videos - I decided not to buy any Smartwatch as I don't have apple device and Huawei doesn't ship in my location 😢😢 Was supposed to buy galaxy watch 5 or amazfit - but your review killed it...
All these precision test are detailed and great, but i think you forgot the most important point, the HUGE price difference. And how in the end you recommend Apple watch over Amazfit just basically throws away your sense of fair comparison..... It's just like saying, a Toyota Yaris is disappointing car so you cant recommend it, however i could recommend to go for Porsche Taycan which is great in a lot of aspect....
Hi Rob, in your previous video Theresa was wearing Muse S (gen 1) EEG headband as well along with the polysomnography equipment. Do you also have a comparison between Muse S and PSG or Apple Watch ? I mentioned you about Muse S headband long ago and said that it could replace Dreem since it is not available for consumers any more. We are also waiting for Huawei TruSleep™ 3.0 algoritm review. Available on GT 3 SE and Ultra. Thanks
My Huawei band 8 is due to arrive tomorrow. It also uses the TruSleep™ 3.0 algorithm. I don't expect much improvement. Huawei mentions that it improves sleep measurement by up to 10% over TruSleep™ 1.0.
A question after all of the smart watches you have tested which would you recommend for weight lifting and sleep tracking that doesn't cost too much maybe 200-250 MAX? Ive spent many hours trying to find a fitting one but its so hard to get an overview
Did you find one? I'm still searching and it looks like you always have to decide if you either want a good tracker for weight lifting or a good sleep tracker. Meanwhile Apple can do both 😪
@@TheQuantifiedScientist thanks for your reviews. Are you also going to review either the Garmin 965 or 265. It will be great to see your review on them
Is there band or ring that can accurately measure your sleep cycles and wakes you up for example after your 5th or 6th sleep cycle? I tried an app called "sleepytime" to calculate when to go to bed and when to wake up but I have trouble falling asleep (one day I can fall asleep in 30min and the other in 4 hours...).
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Great video! Please also review huawei band 8. I just got it.
"I don't like listing specs of watches, so let's get right to it" - That's awesome, performance is what ultimately matters. Great review and enjoy your videos.
i really appreciate the fact that you are also testing these smartwatches which appear on the first page of amazon when we search for Apple watch :D
As a PhD student in AI, I greatly appreciate your quantifiable approach to comparing smartwatches. May I suggest using correlation coefficient to compare the GPS signals to find out how correlated they are? Also, I would like if you could compare against the correlation coefficient value for GPS signals from a cellphone on your pocket. I think using it would give a quantifiable measure of agreement between bike trip tracks, which is what your channel is all about ;)
Lol. Nevermind. I didn't realize you were already doing that. I've been watching your older videos and thought about suggesting that. Good job!
Hey, I'm curious about your thoughts on the challenges of applying AI to sleep stage inference.
Provided you have a sufficiently large dataset of wearer metadata (age, weight, gender, device location, etc), raw sensor data of a target device (fitbit, whoop, etc), and the sleep stage inference results from a reference device - could one be successful in training an ML model that more accurately infers sleep stages?
According to the results from Rob's research, it looks like the major devices of today are no worse than 30% off a given reading from his reference device - I could be wrong but I don't believe they currently use ML to determine sleep stages.
I feel it would be difficult getting enough cases for the training data - but if you partnered with a few sleep study clinics, you could have a few thousand cases in a couple years.
The analysis is SO GOOD. Thank you
Apple watch cant really do sleep tracking cuz you have to charge it every day (most ppl do at night). Amazfit 15 day life
The best smart watch analysis you can get in this world, i love your analysis, you have saved me from making poor buying decisions
Excellent review. Love reviews that are supported by actual data.
Amazing video! I'm an engineer and totally understand your point 😊
Can I ask which battery saving smartwatch setup have you used on the GTS4 used on these tests? In my experience with previous GTS models, that can influence the quality of measurements. Thank you 😊
Hi, I'd love to know if recent updates improve the performance of thos and other watches. Something like 1 year update or something, that would also give us a better notion of how the manufacturers take care of sold watches
great channel mate, loving the objective evidence-based reviews.. One thing that might enhance understandability might be the units of time along the x-axis. E.g., does 19:10, 19:20 = 7:10pm, 7:20pm? or 19m:10s, 19m:20s? Might seem obvious but I can't be sure... I presume the interval is 10s rather than 10m?
Thank you! This precise analysis was exactly what I was looking for.
Hi Rob. Here's another smart watch to add to your test queue. The G-Shock DW-H5600MB. Best of luck with all your testing.
I can't wait for Huawei band 8 and Mi band 8!!!!
Hi! for sure! I am trying to get one shipped here, but didn't find a way yet
I had the MI band 7 but gave it away cos it did not track my sleep properly. If I went to bed at say 10pm but fell asleep at 1am it showed my sleep started from 10pm which is inaccurate
@@TheQuantifiedScientist Any plans for the Circular Ring testing, especially in comparison to Oura Ring Gen 3?
Dont forget honor band 7 too!!
Mi band 8 sucks
Thanks buddy, as always great review
Thanks @unclnis!!
Hello. Have there been significant improvements on the gts4 in the measured values (heartbeat, sleep recording etc.) since the last firmware update?
Up
Amazfit says that yes, firmware updates has enhanced health tracking. I'm eager to see the test update
Finally something apart from Apple Watch
Happy to oblige!
Thanks for your job!
You are more than welcome Javier!
I hope other manufacturers will be able to improve heart rate measurements to the level of those good Huawei watches in the next generation.
Hi! I hope so too!
Would LOVE to see a review of the new Huawei Band 8!
You are doing great job. Very detailed studies. I hope you can test some digital blood pressure monitors such as omron
Hi , I saw Amazfit Balance is out now , and it has different heart rate sensor ,
I will be waiting your new video for that new watch , Thank you
Hopefully Amazfit Balance will be better, they claim that new HR sensor is much more accurate.
Thank you for all all your good detailed videos! Would like to see you test out more of the garmin watches like FR 265 and the new epix and fenix series?
please do one for the new xiaomi mi band 8
Hi! I tried to order one, but it doesn't appear to be possible here😅
I'm a bit surprised that the actual sleep detection isn't part of the sleep tracking test. Stage detection is definitely important, but for example Apple Watches just don't detect sleep outside of set sleep schedule, while things like GTS 3 (at least) do quite well to pick up the fact that I sleep whenever it happens.
Unfortunately, Apple watch is the only one that really lives up to claims. I am not going to buy an iPhone for that. I do not like the restrictive Apple environment, their price system, the "unrepairability", and their ways to oversimplify every product.
The Blood sugar measurement they may introduce into their product will be a hit, if it works same well.
I think that all smartwatches that have health monitoring functionality should conform to minimum standards. Otherwise, the vendor should say clearly it's for entertainment purposes, and not be allowed to prominently market health functions.
Never liked apple from the beginnning, about 2 decades ago when i bought my first mp3 player, this was way before smartphones, maybe 25 yrs ago when the Rio was king of mp3 player but there was also the ipod, i hated apple from that moment and avoided them, the design always struck me made for people with special needs, i prefer "normal" design.
- I can't help but noticed between 1:45 and 1:52 where you mention "very little movement," the devices are being violently shaken (shook?).
- BTW... Why do you not report on SpO2 during sleep on those devices that support that feature? Like Garmin's "all-day and in sleep"? In fact, Garmin is so egregiously inaccurate, their own forums are peppered with "why so bad" and apnea-fear posts, for YEARS. My Garmin reads SpO2 consistently 5-12% lower than actual for sleep or awake spot checks against a Wellue SleepU, an EMAY EMO-80 or a Veridian 11-50K, those three rarely in disagreement, 2% at worst. The Wellue and EMAY are U.S. FDA Class II along with various international medical and industrial registrations and certifications.
- Thanks for the reports on the Amazfit GTR/S 4. Disappointing. I'm glad I went with Garmin; well built, feature rich and relatively affordable.
Hi. I really appreciate your channel and the amazing work analyzing these smartwatchs! I am looking forward to your review of the Redmi Watch 3! Congrats for your wonderful channel!
Awesome videos!!! Any change to test a Xiaomi S1 watch or even better the S2 (I think that only exist the chinese version) ? Or give your opinion were its performance can be ?
Loving the videos!
When will the Forerunner 965 video be out?
Thanks! I am still in the process of testing it, so it will be at least 2-3 weeks :-)
@@TheQuantifiedScientistLooking forward to it!
@@TheQuantifiedScientist Set Pulse Ox Tracking Mode to During Sleep. And Data Recording to Every Second. Does your sleep SpO2 drop below 90% (often to 82% or less) on a consistent basis?
Something I'd love to see in your reviews is step counter performance when attached to the ankle. I want to find a fitness tracker that would calculate my steps while I'm working with a treadmill. I work on the computer so my arms don't move when I'm on it and I can't get step counts. My old fitbit charge 2 used to track accurately but my Garmin Vivoactive 4 is useless when attached to the ankle.
Will be nice to redu some test for more than a year smartwatch with all the updates can be totally different watches.
Also way cheaper..
And the balance? 🙂
scrolled through just because i have the first GTS, didn't know it was on the 4 already. and damn, i can only suppose mine is even worst being the first..
Thanks for the review
Man if you're going to recommend any alternatives, at least make those recommendations in the similar price range. Everyone knows apple watches are the most accurate, but most of us can't afford them that's why we're having to look at reviews like these
Hey! Could you maybe try this same watch again (since it performs particularly worse than most), but next time by strapping it to your arm (bicep) with a different band? In the past, I have seen that I get better readings from watches that don't perform well on the wrist and I would be interesting to see if there is actually a difference or just placebo😊. Keep up with your work!
Hi Rob, I hope you can review then huawei band 8 once you get yours hands on it 😊
Amazfit Active is supposedly, wording differs on different sites, gather 35% more data/be 35% more accurate on biotracking data. Since this seems to be your last amazfit video currently, are you working on Amazfit Active review too?
at the end U recommend apple watch over this? huge price different. there r people with less fortunate. the other quantified good was good
Exactly. I laughed at the end because his scientific method failed to include the most important factor - price to value ratio.
Any $800 watch is supposed to outperformed a $100 watch, duh…
You’re my saver!!!
Off topic:
Will you be reviewing the G-Shock DW-H5600?
I think I can only trust your reviews at this point 😅
GTS 4 has received numerous firmware updates, claiming it increased HR detection quality, calorie calculation etc.
Could you, please, make an update to the review?
Can you test Amazfit band 7? Please test it. I am eagerly waiting. No other channel literally no other channel that tests as thoroughly as you do. ❤❤
Hello Rob, are you going to test the huawei watch ultimate? Do you have a friend who likes swimming to include this sport in your tests of good heart rate detection?
Badly waiting for your review on Mi Band 8
Just ordered one. Not delivered yet. Have to find a reason to send it back.
Watching all your videos - I decided not to buy any Smartwatch as I don't have apple device and Huawei doesn't ship in my location 😢😢
Was supposed to buy galaxy watch 5 or amazfit - but your review killed it...
Oof, tough results. Thanks for getting all that great data
Conclusion of all those tests : if you really want some valid data, just go for the polar H10 🤷
Thanks for all your videos! Is there a chance you can review the polar vantage v2?
Amazfit Band 7 review please. In India that is the only latest budget tracker available. Most Chinese brands have stopped selling their products.
Hi Rob, do you think you'll ever review the Oppo Watch or Oppo band? 😄
great video
All these precision test are detailed and great, but i think you forgot the most important point, the HUGE price difference.
And how in the end you recommend Apple watch over Amazfit just basically throws away your sense of fair comparison.....
It's just like saying, a Toyota Yaris is disappointing car so you cant recommend it, however i could recommend to go for Porsche Taycan which is great in a lot of aspect....
Thanks Much !.......
Can you review the new Amazfit Cheetah Pro?
I also can't wait mi band 8. 😊😊😊😊😊😊😊😊😊😊😊😊😊😊
Coming as soon as possible
Could you test Amazfit Band 7?
Hi Rob, in your previous video Theresa was wearing Muse S (gen 1) EEG headband as well along with the polysomnography equipment. Do you also have a comparison between Muse S and PSG or Apple Watch ? I mentioned you about Muse S headband long ago and said that it could replace Dreem since it is not available for consumers any more. We are also waiting for Huawei TruSleep™ 3.0 algoritm review. Available on GT 3 SE and Ultra. Thanks
Hi! Indeed I want to take a look at the Muse S (gen 1 and gen 2)
My Huawei band 8 is due to arrive tomorrow. It also uses the TruSleep™ 3.0 algorithm. I don't expect much improvement. Huawei mentions that it improves sleep measurement by up to 10% over TruSleep™ 1.0.
detailed review
Thanks!!
Hi , can you review the fitbit Sense 2 !!
Garmin Instinct 2x please🎉
Good job , Rob ❤
Pls consider to test Huawei Watch 4 pro. 😊
A question after all of the smart watches you have tested which would you recommend for weight lifting and sleep tracking that doesn't cost too much maybe 200-250 MAX? Ive spent many hours trying to find a fitting one but its so hard to get an overview
Did you find one? I'm still searching and it looks like you always have to decide if you either want a good tracker for weight lifting or a good sleep tracker. Meanwhile Apple can do both 😪
Would you have a chance to test Polar vantage v2?
They are considered as one of the best spots watches, would be really cool to see their results 🙏
thanks
Will stick with my apple watch :)
Yes, that makes sense!
Hello! The heart rate measurement of Amazfit watches can be improved with a chest belt? Which can be connected to...
Thank you for answering
waiting for mi band 8 =)
Me too!
can you do huawei band 8 plz!!!!!!!!!!!!
Whenever I can!
Please make a review of the Coros. Maybe the Pace 2 or Apex 2
Hi Luis! It is on the list :-)
@@TheQuantifiedScientist thanks for your reviews. Are you also going to review either the Garmin 965 or 265. It will be great to see your review on them
Appple channel :)
Do you know when you will be able to test the new Xiaomi and Huawei bands?
I wait Huawei watch ultra review 😊
Do you happen to have a chart that compares different devices based on some GPS precision metric?
What would you say is the best budget fitness watch for android users? Thanks!
Please, sir, don't keep recommending Apple watches since 70% of the world users are androiders
Are Suunto watches planned for testing?
Hey, Amazfit just released recently a new improved model. Can you please test it ? GTR 4 LIMITED Edition... improved SW and back sensors...
Is this gts 4 or gtr 4 better watch than Garmin vivoactive 5, for sleep and workout 🥴
New release Amazfit Active
Could you do this watch? 🥹
Do you know if either of these has ABC sensors or at least compass like the larger GTR 3 Pro and GTR? Thanks
Hi! Do you have plan to review the amazfit band 7?
Is there band or ring that can accurately measure your sleep cycles and wakes you up for example after your 5th or 6th sleep cycle? I tried an app called "sleepytime" to calculate when to go to bed and when to wake up but I have trouble falling asleep (one day I can fall asleep in 30min and the other in 4 hours...).
Thanks for all the work you did on this. Yours is the only honest review of this $200 piece of arm candy in a sea of RUclips promotion wh*res.
Yes it is but In my country it cost 150-160€.
Is Apple really so superior in heart rate and sleep tracking?!
First! Perfect watch for only know the time 🤦♂🤦♂
Haha, true 🙈
next test Garmin forerunner 965?
any chance to review Suunto watches like 5 Peak and 9 Peak ?
please do for Magene H303 (HRM) because the price is cheap..
Friends, how do you track activitity with huawei if its app blocked in the google store?
Does anyone know if i can track my running without having the phone with me?
Hi is it possible for you to review casio gshock gbd-h2000 & casio gshock dw-h5600?
Please do the vídeo of Redmi Watch 3 😬
Polar vantage v2 - please, do a review 🙏🙏🙏
Can you do the Garmin Venu SQ 2?
This constant smile creeps me out 😁
Can you please compare mi band 8 with honor band 8.