Huawei Watch GT4 : Full SCIENTIFIC Review

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Timestamps:
00:00 Testing Background
01:28 Huawei Watch GT4 Improvements
05:35 Heart Rate Test 1 : Indoor Cycling
10:16 Heart Rate Test 2 : Outdoor Cycling
14:13 Heart Rate Test 3 : Running
16:29 Heart Rate Test 4 : Weight Lifting
20:45 Heart Rate Test 5 : Hiking
21:46 Sleep Test : Performance
30:02 Sleep Test : Comparison
32:39 GPS Test
39:40 Oxygen Saturation Test
44:04 Limitations
44:40 Heart Rate Test 6 : Theresa
46:52 Conclusions
The Huawei Watch GT4 comes in two sizes 46mm and 41mm, where the 46mm version is clearly aimed more at men and the 41mm version at women. The 46mm version comes in 4 colors: black, brown, green and gray, with different types of straps for each, though the green one might not release everywhere. The 41mm version comes in 3 colors: white, light gold and silver. In terms of design, the thing that stands out most is the octagonal bezel of the 46mm version. Personally I am not the biggest fan, but this is totally subjective of course. What I do like is the design of the 41mm version and the way the screen lays flush with the watch bezel.
In terms of heart rate tracking, the Huawei Watch GT 4 now comes with the newer TruSeen 5.5+ algorithm, whereas the GT3 launched with 5.0+. It is not publicly known what Huawei changed exactly about the algorithm, but they say that they use Artificial Intelligence algorithms to train an individualized model based on your historical data, that should improve the accuracy of the heart rate readings even under difficult conditions. They mention that it should for instance be better now during running for instance, and they also claim that the sensor should have improved accuracy in low-temperature environments, as well as faster blood oxygen readings and enhanced sleep reading accuracy. The GT4 can also take continuous measurements of your heart rate, oxygen saturation and stress levels throughout the day. Although I cannot test this, the GT4 has menstrual cycle management; version 3.0 keeps track of menstruation cycles and tries to estimate the ovulation date by analyzing things like your heart rate during sleep, body temperature, and breathing rate.
The GT4 uses version 3.0 of the TruSleep algorithm, which Huawei says has better sleep tracking accuracy; specifically Huawei says they estimate your sleep stages based on body movement, heart rate and HRV. Additionally, the GT4 now adds a new Sleep Breathing awareness feature that could help identify symptoms of Sleep Apnea. Similar to one of the biggest brands in the smartwatch world, the Huawei Watch GT4 also shows your daily activity in a ringed format. These rings are now slightly changed.

[@TheQuantifiedScientist]

🔴 General Amazon link*: geni.us/thequantifiedscientist 🟢 Instagram: instagram.com/quantified_scientist/ 🟠 Shorts: studio.kzbin.info/door/cpARGzXNaC62UQWns2dh2Q 🔵 Newsletter: www.robterhorst.com 🟡 Twitter: @QuantifiedRob * Affiliate (paid) links support the channel by earning me a commission on any sale, and it doesn't cost you any more! My opinions are completely my own, and this content is not sponsored. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 👇 $30 off any new WHOOP membership, affiliate* (paid) link, supports the channel!👇 join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership) ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 👇Amazon Affiliate* (paid) links. Supports the channel, doesn't cost you any more!👇 ▬▬▬▬▬▬▬▬▬▬BEST WATCHES▬▬▬▬▬▬▬▬▬▬ 🔴 Oura Link: I recommend you search for a discount on reddit with the "Refer-A-Friend" program! If you can’t find one: ouraring.sjv.io/rQ4L33 (affiliate link that supports the channel, but doesn't have a discount) 🔴 Whoop Strap 4.0: join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership) 🔴 Eight sleep 200$/150$ discount*: eight-sleep.ioym.net/TheQuantifiedScientist + add code “TQS” for 200$/150$ total discount

[@polikerski]

Will you be doing xiaomi watch 2 pro after it releases on the 26th? It has all the features and I just want to know if it's accurate enough to be a good buy for me

[@gn0s1s]

Another great review, really wish other companies could come close to matching apple's accuracy for sleep tracking as the eco system lock-in and battery life are not ideal for the apple watch ultra.

[@MayurParekh256]

Can you do the ticwatch pro 5 please?

[@TVBamBam]

Hello, Can You test the Huawei Watch D? I think the results for health tracking are much better than other.

[@simdencard]

I'm torn between buying the Huawei GT4 and the Amazfit Balance. Would you be able to test the heart rate accuracy of the Amazfit Balance, please?

[@abdulhamza172]

KZbin algorithm is not doing you justice at all... This channel is a gem... Definitely deserves much more subs

[@bigdonger6949]

The reason must be the fact that he exposes a lot of expensive watches that sell the dream but that are actually garbage in terme of measures

[@abdulhamza172]

@@bigdonger6949 well said 👍 Big companies don't like that at all

[@eoinmccann8450]

That heartrate test was fantastic, the fact its better than the Garmin fenix 7 pro and epix 2 pro, is opening my eyes lol

[@user-oz8sp4ei4m]

Always very informative & educational Rob. Can't thank you enough for all your work 😁

[@PeterMoueza]

Personal bookmarks shared : 1:50 see °C 2:00 bezel 3:00 temp 4:00 cal 14:33 newsletter 20:00 breadcrumbs : correlation vs delay 20:18 retest 22:30 new sleep device 29:30 ring 32:05 tennis seen 33:24 °C 40:10 colors 41:14 REST 42:50 related : altitude residence adaptation 45:00 good, your update

[@OpNabla]

Side note: I'm quite impressed on how Huawei Watch Fit 2 remains unbeaten as one of the most accurate HR monitors according to your tests. I've bought one last year after watching your analysis - and I'm still very satisfied with it.

[@irfanhakimi2721]

Is it good for running?

[@lukeadamson9662]

Same, it's been great and very good for running.

[@smarterphone6863]

Me too, It is the best

[@atudarden342]

Fit 2 is solid. I’ve had it for about 8 months and it tracks my workouts and calorie burn very well. My only complaint is that a few times out of the month my sleep tracking is a little wonky but mostly good overall. SpO2 is pretty good as well.

[@fikriilhamfadhillah4467]

does you guys have issue with huawei health not sending the heart rate data to strava? i'm on iOS so health sync app is not an option :(

[@HanifYahaya]

Thanks Rob. I'm really appreciate what you have done

[@yodanvranx809]

Hi Rob. I was eagerly waiting for your next review. They belong to the most intersting and helpful stuff on YT. Enjoying it all the time. If I may utter a wish then please do the Huawei Watch Fit Special Edition and the RingConn ring tracker. Thanx for your efforts as always.

[@oOcitizenOo]

What? Watches were announced yesterday and you've already made review! What a legend!

[@diegobevilaqua86]

Just found your channel today, quite nice and detailed reviews, I'm liking! As for the weight lifting results, from what you said the happen mostly when doing pecs and triceps - those exercises are usually the ones where you exert much higher force on your hands (and consequently on your forearms), and that's probably why there's worse HR detection during those.

[@canbalcioglu4229]

Rob, you are a real treasure👊

[@TheQuantifiedScientist]

Thanks a lot! 😊

[@Mau365PP]

​@@TheQuantifiedScientistPlease review the Huawei Watch D 😋

[@galgrunfeld9954]

Hey, Rob, is there somewhere where we can compare the results of each one of the wearable you reviewed in whatever category we want so we can find out which one fits us the most?

[@zuludeltanovember]

do it yourself, spoonfeeder.

[@Marinescu87Dan]

Once again you're doing an amazing job! Thanks a lot again!!!

[@igorcarlson136]

Hello, thank you for your high-quality content and your time. I'm curious, are you planning to test the new Apple Watch 9 and Ultra 2? And when can we expect the video?

[@saitun3423]

Quality content bro 👌👌👌 Loving this ❤

[@rramirez3555]

Thanks so much for testing these tech so thoroughly!!! (And not just repeating what can be read online)

[@3DavidA12]

I just discovered your channel and it's absolutely great. I watched this after the pixel watch review and notice the numbers all seem to be different, and much better than the original review. Was there some kind of update or did you reassess them for any reason?

[@Bacci_music]

Congrats for the good work!

[@fabricioluna2621]

Liked and subscribed. Thanks Rob. Cheers from México.

[@fabricem.2442]

The best channel for smart sport watch ! many thanks from France.

[@coder_rc]

Awesome video as always

[@rramirez3555]

Many thanks for these videos!! Very, very useful!

[@Zeio]

Great review, as always.

[@pedrocastillo890]

Thank you. This video actually convinced me to get a Gt4

[@openmindedbloke]

Excellent review. Thank you.

[@n0n1m03]

@TheQuantifiedScientist Nice job! I hope you can help me with an interest question, and I believe there are not much solid information about it around tbe internet. There is any problem using fitness trackers/smartwatches/smartbands on the inner side of your wrist (palm side)? I mean, how bad is it (if bad at all) to the accuracy of the device? Do you have a word on this issue? Maybe you can consider doing a video testing it, would be great!

[@CurrentEvents-xj1ei]

Great objective scientific review. I bought Huawei Watch Fit 2 because of your objective reviews. Apple should adapt the battery technology of Huawei to its smart watches, and Huawei should adapt the accuracy of Apple smart watches. Its a win-win for consumers to have this kind of competition of large companies to push themselves to create a much better products.👍

[@micahjohnson9184]

Hey rob great video! Do you know if the GT4 will get non invasive Blood Glucose update like the Huawei Watch 4 and 4 pro will?

[@bmwb10ix]

Great video as always! :) I was really hoping you would review the Huawei Watch 4 Pro. Do you have plans to test these watches? Many thanks

[@trym2121]

I'm sure it will more or less the same. Good HR and mediocre sleep just like this and previous devices. They use the same tech after all

[@deesanks]

Rob, good work on the detailed research. really appreciate it. I haven't seen all your videos, so I am not sure, if you have addressed these questions previously: does the result vary on how snug the watch is around the wrist? What is the variability from person to person? Is it better to test with a similar band type across watches. I haven't used an Apple watch, does it provide consistent tightness around the wrist irrespective of wrist size?

[@keletsoleshika]

The rectangular shape of the Apple watches makes them less prone to movement that might tilt the sensors, I think thats why they pickup good results. I have Apple watch and couple of Huawei watches and the position of the Huawei on the wrist is always tilted, if you tight it too much it records wrong details. I use a stainless steel straps on all my watches so it always the same tension across all models.

[@markQ08]

Great video as always. I have a question. Are you also planning to test Huawei Watch 4 and 4pro? Do you think the results on those would be different or pretty similar as they probably use same algorithms? Keep up the great work 😊

[@MarcoPolo82]

Watch 4 and Pro don't are good. Maybe worse than GT4.

[@markQ08]

@@MarcoPolo82 that's why I would like to see the scientific test on them as well 😉

[@dacicsak]

Based on what you state this?@@MarcoPolo82

[@mariuszbros2753]

@@markQ08 me too @The Quantified Scientist will be a test on huawei watch 4 ?

[@namnta]

@MarcoPolo82 Have you tried it and tested it? Because the sensor is not the same

[@Albo920]

Thank you for all the contents :) Meanwhile, are you testing also the new Garmin Venu 3? It seems to be a big improvement in garmin products

[@user-lf5fy5vx9x]

Garmin is bad. ONLY name.

[@marioko123]

I adore your scientific approach. As always, perfect. Waiting for Apple Watch Seried 9 review.

[@fbu_channel]

Amazing channel, Rob! Your smartwatch accuracy are awesome and so much more valuable than the usual pseudo-tests in other review videos. I especially like that you perform the GPS tests in my hometown Vienna, so I get a fairly good impression what those smartwatches are capable of. One small improvement suggestion: could you maybe underpin the GPS test with some quantitative data? E.g. length of cycled distance reported by smartwatch vs actual length as on Google Maps? That would allow you to rank the smartwatches on gps accuracy as well.

[@user-hz6bn5rj3p]

Very nice video! But I have some questions about the heart rate measurement results. From the line graphs of each test, it can be seen that the heart rate data of gt4 seems to have a few seconds of delay compared to the reference device. This delay will significantly affect the correlation coefficient R, but in the actual use process, this delay has little impact on the experience. Have you tried to eliminate this delay by shifting the data and then calculating the correlation coefficient R? The cause of this delay is also unclear. I noticed the trough at 21:07 in the heart rate graph at 45:40 in the video. Gt4 clearly detected this trough earlier, rather than the usual delay, which is also very strange.

[@trym2121]

Delay has plenty of affect if you put limiter. Couple of seconds faster notification might safe your life

[@cameraman8329]

@@trym2121 it really wont lol. maybe if it was delayed by upwards of 15 seconds and even then its not an apple watch so it wont notify you if it detects anything unusual instantly so youd feel it before the watch does

[@nestorduck]

So quick! Big thanks.

[@TheQuantifiedScientist]

You're welcome! 😊

[@Jonnynot1plate]

Hi, based on all your total tests of every watch of any brand or generation which watch would you get to count your steps?

[@LindomarOliveiras]

Great reviews! Will keep my Huawei GT Runner for now!

[@wristcheck350]

I see no value in upgrading. I also stick to my runner. HR monitor is also slightly better than this gt 4 🤔

[@aayushf]

Hi, huge admirer of your channel, love the rigorous testing for wearables. Do you have a review for the TicWatch pro 5 coming up? I have the watch, and would like to know how accurate the sleep tracking is.

[@GreenlifeFin]

Thanks for the review. What warch would you recommend for sleep apnea detecting?

[@Naranek]

Great review, thank you. Have you also tested the non GT versions? Is there a difference?

[@Smithson52]

Will definitely be waiting eagerly for your Apple Watch 9 and Ultra 2 reviews

[@kop1986]

The beautiful green GT4 will be my next watch ,great review

[@syedfarazumar]

Thank you for such a detailed video. Please make one testing Garmin Venue 3 as well.

[@Pohmetolog]

I even emailed him asking him for that review lol

[@TheQuantifiedScientist]

Yes, that will come. I am wearing one at the moment :-)

[@Pohmetolog]

@@TheQuantifiedScientist please do a sleep test, It would be very helpful and much appreciated! The new venu 3 has nap detection and it is something that might be better than fitbit (because all the previous garmins were not as good as fitbit) thank you!

[@syedfarazumar]

@TheQuantifiedScientist Wow, nice. I hope venue 3 does well in sleep tracking, I am looking forward to it. Thank you, for testing it. We really appreciate it.

[@user-ij8no5zw6u-]

I was hoping for Venu 3 as well. BTW I have Huawei Watch 4 as well as the O2 ring and can confirm all of the results from the video. HR tracking is barely better than Garmin's, SPO2 is basically fake as well as the sleep tracking. HRV is missing, stress is very very questionable....I wonder why I bought it at all. It has LTE and great watch faces and that's all...

[@asd710]

Thank you Rop, as usual 5 star review, are you going to do any review on Garmim venue3?

[@doctorshadow2482]

Thank you! Can the alarm to be set to the time close to light or REM sleep so that I be waked not exactly at 4:00 AM, but in a range 4:00-4:20 when the sleeping mode is the best for awaking?

[@manueldietz4270]

When will you be receiving the new Withings Scan Watch 2? Nice video as always!

[@rbr1993]

Great review as usual! I'm happy to see you're expanding on the test and information for the watches reviewed. After the disappointing sleep measurement, do you believe that the Google Pixel Watch is the best all around watch for Android? I saw you corrected the outdoor cycling for the Pixel watch in your newest videos.

[@JohnSmith-el4ez]

Personally, I think the Pixel Watch is the best android smartwatch when it comes to health tracking. It's just a shame that the battery is not very good and many data are locked behind a paywall

[@bojantenja]

How could it be best when it's battery is always dead?

[@rbr1993]

@@bojantenja I meant in terms of health tracking and features, especially as it will receive updates until 2025. I'm trying to decide between 1 and 2. There are many reddit threads where people agree that while the battery is bad, it lasts 24 and even up to 48hrs. Some compare it to the apple watch battery life and notice no difference, but I suppose it's varies greatly depending on the use case.

[@TheQuantifiedScientist]

Hi! I have to check on that change in outdoor cycling (don't have the data here). I collect new data sometimes, but I don't think I changed anything for the pixel watch, and the data should still come from the same source. If there was a change, not sure what happened. The data loading is mostly automated at this point, and I just indicate a folder and date range.

[@noelherrera-lim7897]

Totally helpful review..super! Thanks!

[@henrivietnam]

Always great to watch yours. Look forward to having review on Cheetah! Cheers

[@luigir.5611]

Do you know if I can connect the GT 4 with a Polar variety sense belt? As for weightlifting measurements would be much more accurate.

[@anak483]

great review, thanks!

[@eightfoldstories-weddingfi8022]

Please consider reviewing the "Honor watch 4" . Honor seems to have the same hardware as Huawei watches but now have a dedicated app on both ios and android + none of the issues that huawei faces in the US. Thank you!

[@MindBlower18]

Awesome Review 👍 Thx from Munich 😉

[@mickybond]

Really impressive, comprehensive, most of all, scientific review. Im a fan now, sir!

[@sahabatyorofun6552]

You're the real scientist bro 🔥🔥🔥🔥

[@nelsoncheetube]

Best professional review ever seen. Thank you ser

[@alanchong8121]

Well done ROB, keep it up

[@ReneOo]

Me gustan mucho tus videos y debo confesar que después de haber visto varios. Solamente confío en ti en lo que se refiere a los smartwatches. Muchísimas gracias por tomarte el tiempo y esfuerzo de probar los dispositivos. Abrazos desde México. 🎉

[@nesjka4606]

Hey Rob, do you have plans reviewing the Garmin Venu 3? The price is 50% higher then when the Venu 2 came out and i wanna know if the higher price is worth it

[@PopaSergiuMihai]

Love your reviews! Can you please test Amazfit Balance? It is the Amazfit GTR 5, but with a new name, and I am not sure which one to buy, I like Amazfit more, but based on the older reviews of yours, the Huaweis are generally better, however they use a completely new heart rate sensor now.

[@ican85]

Thx for the review!! I think ill wait for gt4 pro

[@shazadirani]

Hi Rob ! Any chance you would be testing the Huawei watch 4 ? A bunch of us are looking forward to it. Cheers

[@MickPayton]

Does the GT4 have the same heart rate sensor as the GT3pro? Thanks!

[@szihu]

I'm disappointed that the sleep tracking is still lacking. Still, a very solid smartwatch for the price tag.

[@harry-xu8pk]

I get accurate sleep tracking on my gt 3 pro. I would rate accuracy of sleep tracking 95% accurate.

[@MarcoCiafrone]

Mine is not accurate, when I reading on bed according to the watch I am sleeping

[@exposed8674]

I have GT4 for the past 1.5week and it sleep tracking seems to be dead accurate.

[@Vanessa-rz8lf]

I also have problems with the sleep tracking, could it be because I have tattoos under the region of where I'm wearing the watch?

[@exposed8674]

I won’t agree with sleep tracking. I have Gt4 for over two weeks now and sleep is tracking is super accurate.

[@Truthoscope91]

Based on all your testing, what are the best Garmin devices? Are they as good all-rounders compared to the Pixel watch?

[@faisalsaoud9205]

How does the gt 4 gps test compare to the forerunner 255. Because I’m trying to choose between these 2 watches for running

[@denny8360]

Would love to hear about the HUAWEI Watch FIT Special Edition too, pretty recent availability for me and I'm not sure between that and the band 8. Amazing videos as always, thank you!

[@rakeshsinghprs]

Heard there is a software update on GT4 mentioning improvement in SPO2 and sleep tracking. Is it possible to check if the software update has improved the device?

[@emenny81]

Very good idea to test with new software updates

[@jessejordan310]

I'm wondering the same thing.. I really want to buy one of these watches!

[@MStar10]

@@jessejordan310 Me too...but the sleep tracking is horrible - what do we do?

[@MStar10]

Do you have the reference link for this? I really want to buy the GT4 but need better sleep tracking!

[@jessejordan310]

@@MStar10 Well mine arrives today so I shall find out how well it works. There was an update since this video came out but it still is probably not as good as other alternatives but hopefully it will work well enough for my needs.

[@jim_fear_]

Love the channel, and waiting like crazy for sleep tracking test for Venu 3 and forerunner 265 as im on to decide which is for me, and sleep tracking is one of most important thing for me and the watches are pretty similiar. Especialy intersted as garmin introduce new sleep tracking/coach and nap tracking in venu 3, im VERY curious about these two. Is there any way that You will test these watches? Cheers!

[@atakan5909]

Hey Rob, Is there a internal storage on the Watch? Can we put songs on it? Thank you!

[@RobertAfrica]

Just finished the whole video, wow, fantastically thorough. You have made me rethink getting/reviewing it myself due to measurement issues eg sleep. My incentive for going beyond my GT2e would be an ECG (does the GT4 lack this?) and the App Gallery.

[@jeremytoto9664]

Hi @RobertAfrica, unfortunately based on the article I have red, the GT4 does lack the ECG support. Like the GT3 Pro, it may come with the GT4 Pro which will be more expensive. Honestly, the main difference so far between the GT3 and the GT4 series is HarmonyOS 4.0 which bring subtile design change, the ability to answer message via typing or voice recording, a more capable camera remote with viewfinder as well as zooming capability and a couple of more app. I have only tried the Watch 4 Pro so I wouldn't be surprised if the camera app appears to be less capable on the GT4 Series. But honestly, has things has began, the ECG capabilities won't be available on the non GT Pro Series before 1 year or more. You won't see a Huawei everything watch soon either, since they have splited the key fonctionnality between the Watch Series and the GT Series. Hopefully they make something good out of the Ultimate series.

[@RobertAfrica]

@@jeremytoto9664 Thanks very much for this. Yes I think more and more athletes are looking for the ECG integration. As of right now I myself want the AI running coach as on the GT Runner -surely it is time for that to be upgraded? I think I will wait a couple of months then depending on my income get the GT4 as the reviews so far bear this out. Thanks again.

[@jeremytoto9664]

@@RobertAfrica It would be even better if a GT4e made it to the market since the GT3e is quite similar to the GT Runner for 50 bucks less.

[@alpersabuncu7915]

@@jeremytoto9664 hi jeremy. I just bought gt4 yesterday. but i am dissappointed ecg is not working at all. I have no chacen to get refund. Is ecg function will be available on gt4 or never?

[@jeremytoto9664]

Hi @@alpersabuncu7915, according to the Huawei website the GT4 only have support for PPG analysis and only in selected countries. They call it "Pulse Wave Arrhythmia Analysis" and since you can receive alert, this analysis therefore doesn't use a proper ECG sensor. I'm afraid but this watch GT4 doesn't have a proper ECG sensor and like the last generation the Pro model will, probably to justify a price bump over the GT4. Other websites and reviewers doesn't mention an ECG support for the GT4 :/.

[@locosmuevenmundo]

Great video as always, one big question. Have you set the watch on the app for real time or Smart mode? I think that the acuracy will improve if you use the watch on the real time mode monitoring mode.

[@kop1986]

Hi I don't know if you will see this question but yes I agree with having the heart-rate on real time for sure..My question is iv had the Gt3 GT3 SE and now the gt4 but my problem is with the heart-rate,neither of these watches out of the box would go above 150 bpm even though my heart-rate is actually 170+ at the time and when I look at the heart-rate screen on the device (not on workout mode but normal everyday heart rate screen) there is a line with 150 on it like that is the maximum it will reach.Iv looked everywhere for an answer to this but no luck ...It cannot be a coincidence on 3 separate devices the same issue has occurred?

[@locosmuevenmundo]

@@kop1986 you have the watch placed 2 fingers above your wrist bones? Also try to check the data on the phone there you can see it more clearly. Also maybe that 150 bpm is your average

[@kop1986]

​@@locosmuevenmundoHi thank you so much for the reply ,yes I always wear the watches correctly,the 150 is showing as my highest heart-rate not the average,it says 150 but in fact my chest strap says it's 176bpm at the same time,it's just the fact it's happened with 3 different watches now that makes me know it's not a coincidence but rather something that needs changed in the settings maybe .I hope this is the case anyway because it's very frustrating

[@krauzo]

Amazing, thanks!

[@TheQuantifiedScientist]

Glad you like it! 😊

[@domenicofordellone5850]

Great video. A question: Huawei Watch GT4 or Amazfit Balance, and why?

[@Mordotz]

Any idea on when the Scanwatch 2 analysis will be out 👀 I really hope its better, cus the battery life is unbeatable!

[@CoryBurke]

I too am waiting for this review!

[@mariuszbros2753]

@The Quantified Scientist will be a test on huawei watch 4 ?

[@humanchannel9421]

Generally outperformed by the vanilla Pixel Watch. Excited for your upcoming Pixel Watch 2 review.

[@TheQuantifiedScientist]

Especially for sleep. The Pixel watch basically just copied the algorithm from Fitbit, which is pretty good.

[@janaboy82]

Will you test the Huawei Watch 4 and/or Pro as well?

[@VRayDantesTrygorn]

Hi, Rob! Have you considered doing a comparison between cheap heart rate chest strap? I think it'd be very interesting to include them in the devices you test, as I'm considering buying one. Maybe you could also test HRV to see whether it's accurate enough to be worth monitoring it. Some app (Welltory for example) also claim to accurately measure it through the phone camera. I'd love to see some of your tests on them.

[@setiasianturi]

for my run im using polar h10 chest strap (only to strava app or sometime to smartwatch as well, h10 have 2 bt connection) & huawei gt runner. they booth pretty similar hr reading. i had using magene h64 (about $15), im surprise it have similar hr reading compare to gt runner, the issue was its only last 6 month for me before malfunction of hr reading (spike & random).

[@VRayDantesTrygorn]

@@setiasianturi Polar H10 seems to be the most accurate consumer device, in fact Rob uses it as a reference. I'm interested in how Polar H9 (half the price) or Moofit, Cospo and other cheaper devices (1/5 of the price) would compare. If the difference was not too big, I'd go for the cheaper one

[@VRayDantesTrygorn]

@@setiasianturi did you try comparing other measurements with the magene strap? Such as HRV or VO2max? Are they comparable to Polar H10?

[@sampadathapamagar1543]

Thankyou for the review! Could you also please review Redmi watch 3 active 🙏. Probably the cheapest smartwatch reviewed in this channel.

[@mccrackenian]

What is the watch setting to allow the route plotting on Google maps?

[@dennyanders1846]

Love your work! Thanks, Does it display HRV readings? Greetz

[@teHinstinct]

Anybody?

[@victorv7710]

Hi, thank you very much for your service, can you tell me if it tracks football (soccer)?

[@user-mq6cs8hq1s]

which one is better for sleep tracking and overall the gt4 or the samsung watch 6 classic

[@truthlovespalestine]

Could you test the activity auto detect accuracy feature as well esp the cycling autodetect by different watches

[@nixdagibts]

Amazing channel, a real gem

[@asaiss822]

Great analysis. Is there any testing for swimming?

[@princessmoncada2464]

In overall performance, which watch would you recommend?(Going into consideration apple and garmin products too)

[@festol1]

I had a Band4 Pro and loved so much I procured a GT 2e. It works for my porpouse (stand alone GPS with big screen) and I approve it. So much I'd like again to upgrade for a GT Runner. Now I have doubts that the GT4 is really a step up from the Runner or GT3 Pro. I think I have to wait for the Runner 2 or a GT4 Pro?

[@MusabTahaTarik]

these are all fake improvements to make us poorer

[@jeremytoto9664]

Or the GT3 SE, if you have the chance to order both the GT Runner as well as the GT3 SE and return on of them you might be surprised. My only concern is GPS accuracy, but based on my research the GT3 SE does the job. By the way, I have got the GT Runner.

[@emrematthew]

Finally....... Thank you, sir.

[@jhaplikacie7215]

Hello thank you for very good review, great job 😉. Do you think Huawei Watch 4 will perform similiar like GT4? Because I havent find rewiew of Watch 4. And comparing to Samsung Watch 5 Pro is GPS tracking much better or only a bit? Thanks

[@erwinyulista]

So if you want a watch, with balance quality for all the tracking (heart rate, sleep tracking, gps, etc), not the one that just great in heart rate but not good inn sleep tracking (for instance), which one should i get? (except apple watch). Thanks

[@quantifiedmax]

Hello Rob, thanks for a new video. I'm trying to understand confusion matrix, did you change the methodology from previos videos? In previos videos (Eight Sleep Pod for example) vertical columns were normalized, so when i look at deep sleep missclassified as a light sleep it was percentage from base as a light sleep. Is it same here (37.6% of light sleep from zmax were missclassied as deep by watch) or you changed to '37.6% of deep sleep detected by watch were a light sleep on zmax'? You inspired me to share my findings on youtube and I'm now thinking about methodology, planning to make some sleep accuracy videos with dreem 2 / zmax data as reference.

[@TheQuantifiedScientist]

Hi Max! Good questions. No, same as always. And yes, this is a somewhat arbitrary choice, and I am also thinking of making some changes. It is a balance between how easy it is for people to understand and the value of the metric... Cool, excited to see your content. Maybe we can do a nice collab one day :-)

[@quantifiedmax]

@@TheQuantifiedScientist thanks for answer. So it seems i need to figure out by myself how to report accuracy in casual way. I want to address problem when there is 30 mins of deep on reference device but watch overlap with it for 27 minutes but overpredicted total deep sleep for 60 minutes. In your matrix accuracy will be 90%, but i think it should be 27/60 = 45%. Watch show 60 mins but in reality there were 27 mins of deeps, no way it should be presented as 90% accuracy)) And I think it easy to understand - "Watch detected 60 mins of deep sleep when there were only 27 minutes of deep sleep for reference device, so it mistaken 33 minutes out of 60,". Anyway, i will continue to think about it while i'm making first video, it will take some time :) +1 for colab one day)))

[@owain100]

which has the better heart rate features/specifications GT4 or GT 3 pro with ECG?

[@pradyumnam7451]

Please make the accuracy test of galaxy watch 4 after all updates as it's available for less price now. Thank you 😊

[@zinrasid4187]

Are you going to review the amazfit balance? I'm about to buy but waiting for your review

[@Tattersail]

GPS Signal accuracy is very important for Strava, as i've recently learned. My Huawei Watch Fit 2 will often miss segments. My only comparison is a Wahoo bike computer, which works great, and mobile phones, which are doing even worse in the accuracy department in my experience.

[@eduardopc4]

Do you know if can sync Huawei Watch with Strava?

[@Tattersail]

@@eduardopc4same huawei software. last i checked, it had the option to sync with strava, but only sent GPS information. Heart rate, power was not synced. I bought an app called Health Sync, which offers customizable sync between different services. That included heart rate, but still not power meter data - and the developer was quick to respond and work with me on the request.

[@jbkool]

Depending on the region you are, there is native integration. ​@@eduardopc4

[@BrunoGomes-xu7lh]

Hi Rob, many thanks for your work, it has been really useful in not :) choosing my next Android watch! For Huawei GT4 however, despite the flaws in the device, one key feature will make me buy it if accurate, the CGM capability... do you plan to test it when available? Many thanks!

[@pmhlachambre3364]

Ditto! This was a terrific video, and now I've subscribed. I, too, was hoping to get Rob's input on the Continuous Glucose Monitoring (CGM) feature, in order to decide whether to buy this watch.

[@jen.s_]

Hi! Sorry to comment under this video, but I really need some help. I'm debating between the Fitbit Inspire 2 and Charge 3. My main need is accurate sleep tracking. I've watched both videos about them, and it's clear that the Inspire 2 performs really well. But I'm unsure about the Charge 3. How much better is it in sleep tracking? If someone has some experience with them, please, help me out. Thank you!