Amazfit GTR 3: Scientific Review
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- Опубликовано: 6 июл 2024
- I tested the Amazfit GTR 3 against a scientific sleep EEG device, and tested the heart rate, SpO2 and GPS accuracy. Subscribe to my weekly Newsletter(!) on www.robterhorst.com
Instagram: / quantified_scientist
Twitter: @QuantifiedRob
Amazfit GTR 3 Firmware used: 7.22.7.1 (latest version available on my iPhone in my region on 2021-11-14)
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The EEG tracker I used is called the Hypnodyne ZMax: hypnodynecorp.com/ from @HypnoDyne Corp
⏱️This comparison is part of a larger project where I spend over 11 hours a week tracking everything in my life. If you'd like to know more:
• This mad scientist sca... ⏱️
Timestamps:
00:00 General intro
00:46 Results: Heart Rate Test
04:19 Results: Sleep Test
07:43 Results: SpO2 Test
09:05 Results: GPS Test
10:26 Conclusions
10:56 Buy The Amazfit GTR 3?
🎵Music🎵
(1) Not Without the Rest by Twin Musicom is licensed under a Creative Commons Attribution license (creativecommons.org/licenses/...)
Artist: www.twinmusicom.org/
(2) Wonders by JVNA
(3) Can’t Sleep (RUclips Audio Library)
(4) Classique (RUclips Audio Library)
(5) Blurry Vision (RUclips Audio Library)
Person Waking up Video by Ba Tik from Pexels
Many thanks to Rob and Frederik (and his FUN:D SCIENCE FOUNDATION) for their help with the OpenBCI device. 
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Can't wait for your review of their newest product line - GTR 4, GTS 4 and GTS 4 mini
seconded!
This guy is the only guy in RUclips letting us know that this watch is not worth if you expect it to be a good fitness tracker. I had a T Rex Pro and the heart rate measurements were really bad, not a single review stating that i was able to find at the time. Ended up buying a Garmin and I'm happy.
garmin which model
Absolutely incredible and informative videos 👏. Just randomly I clicked on your video and after watching your multiple videos I am so glad that you are covering all the aspects smart watches throughly which are mostly just sold on basis of specs and features (of health) to attract customers. You videos give detailed insight for those who are seriously consider smart watches for their fitness purpose. Your videos are really helpful. Looking forward for more such videos. Good Days 👍.
The testing of the GPS accuracy is a really good addition!
Looking forward to Amazfit GTR 4 results :) Newest firmware + new sensors.
if it remains 50% of what is a Huawei, it will already be a great advance for an Amazfit
@The Quantified Scientist when can we expect review of GTR 4?
@@tomasdemovic7587 Returned my GTR 4 back to store after one month. I have used this watch with iPhone and in my opinion overall it is definitely better smartwatch than GTR 3 PRO. But Heart Rate Monitor is one big disaster. First 15-20 min of any indoor training it was showing 180 in stead of 100, even during warming. Sometimes after 20 minutes it was going back to normal, sometimes not. I didn't test outdoors, used my old Garmin FR. Maybe software issue or bug I have no idea
Really curious too! Bought the gts 2 once before knowing the HR sensor sucks never bought one again!
Best reviews on RUclips - so detailed and telling it as is.
review the watch again with the new frimware update please 🙏
Well done , keep it up. Really enjoying these videos and your style of presentation
Thanks for the reviews and all the data comparisons 👍
I was wondering if you could every do a full comparison video of each and what you recommend them for. Maybe a list of top 5 for 2021? Love your videos!!!
Dear Rob,
One idea for your channel: 2021 is coming to an end and I think "best-of-videos" on the different dimensions might attract MANY MORE viewers than in-depth reviews of individual watches. So, for example, you could make a video on:
- Best watch/tracker for sleep analysis
- Best watch for exercising
- Best health watch
Etc.
Also, an idea could be to optimise the titles using Google Trend, Answer the Public and special marketing tools for RUclips.
I really think you deserve an international audience which should be 10 or 50 times the size it is now. ALL THE BEST!
Groetjes uit Berlijn!
PS. Your do one-in-a-kind work! Best smart watch tests I have seen on RUclips! So glad I discovered you before buying a watch. Very unsure now what to buy, because basically every model sucks in at least one dimension, haha.
Have you thought about doing a retest? I bought the GTR 3 one week ago. The heart rate during workouts seems much more accurate in my case. Yes there is a delay on lowering the heart rate, but compared to your diagrams, in my case the heart rate diagram seems much more accurate and realistic (the hr goes up a decent amount near the end of each weightlifting set and it goes down pretty low especially towards the end of each break). There is a chance that hr tracking has improved with updates. Amazing analysis by the way!
Hi, and Thanks for the review. Are you planning to re-review the watch again? I heard that it gets better with the new update!
I love your informative videos. Could you also check whether Amazfit GTR 3 / GTR 3 Pro were keeping accurate time like Apple watches? Specially when GTR 3 Pro has Wifi, it might able to sync time with NTP time Servers.
You are awesome! Thank you for such a great review!
If I may... try to set the watch tight. I noticed with t-rex pro that I have to set it tighter if I want a good measure of HR. I also noticed differences between the two arms.
Ich mag deine Videos, die Zusammenfassung ist mir am wichtigsten 👍
Danke 🙏
Still no firmware update? It sucks that they can't ship the watches with working firmware =/
Can you please do a Huawei Watch GT3 accuracy test? I wonder if Huawei improved their sensors as well as their accuracy
Thanks for the review!!
Would love to see Huawei Watch GT 3 review soon
could you analyze versa 3? They say it has improved a lot with the latest updates
Wonder how the GTR4 is improved if at all since they use a larger sensor to collect more data.
Thank you for this test. I wanted to buy this watch, but why would I need a device that incorrectly shows my heart rate? Have updates improved heart rate readings?
Good job, end of the year we want a top 5
Good Job again, but especially for sleep Tracking Garmin Venu 2 cant be as that worse in Graphic are you Sure for it?
Please review amazfit gtr 3 pro, with new updated version..
Are you also going to test the GTR 3 Pro?
What a fantastic review, as always.
Are you going to review the Amafit GRT 3 Pro...could be interesting if that version has been improved or not....
Will there be a video after the update?
Are you planning to check the accuracy of the Fitbit Charge 5's ECG? Was included in the latest update.
Reliable review as always, anyway this is expected in this watch, I like to wait the BipUpro and Neo review since they are included in the video. I'll get the Mi watch next month.
Hey eagerly waiting for amazefit gtr 4 review 🙏🏼
Hello
Would you recommend I go for Garmin instinct or Polar Vantage M over this?
Hello! I've been enjoying your channel lately bcs i'm currently looking for a new smartwatch. I've been eyeing Amazfit GTS 3. I wonder if you have a plan to do a review on it?
Thank you so much for these reviews!
I was really struggling trying to decide which Watch to get, after my Amazfit GTR2e unfortunately cracked. (It's really only the glass, but the company responsible for repairing tasks in Germany wanted like 95€ , whereas I could get a new one for 90€.. )
This was my 3rd Watch from Amazfit so far, but I always had a feeling, that the HR monitoring is somewhat off. Your videos confirms my assumption.
I was thinking about getting the GTS 4 (or mini), but I don't think the HR monitoring will be much better than what the GTR/GTS 3 can offer.
I will probably go with either the Huawei GT3 or try the Huawei Watch Fit 2!
So all in all; Danke für deine ausführlichen Videos!
hello, have you tested the watch with the latest upgrade version of october the 31th witch correct the heart rate accuracy
I have this watch and I often wandered if it picks up my heart rate and speed correctly whilst cycling. In my experience after I'm starting to sweat seriously under the watch's sensor, the heart rate monitoring fails completely, showing resting heart rate during an intense unaerobic sprint session. It mostly works fine if I periodically take it off and wipe the sensor of sweat.
I also suspect that it picks up my cycling speeds wrong. I haven't been able to verify it yet but I think it under reports speed by about 7-8kmph, which is okay while running, but with cycling it gets annoying. Especially if you want to track your trainings with better accuracy.
Wow your channel is amazing, solid work!
I've deleted so many watches from my wish list because of your channel lol. I guess I'll stay with apple watch for now.
Could you do the SE by any chance?
Keep it up!! Cheers
Accuracy, thats the one word i would use to define your channel, great video and yet again, Amazfit performing poorly ( and yet again another model i will avoid to buy) I am looking for a better sleep track + gps for workout (including daytime sleep track). I know, i have seen the fitbit videos and i know they are at the top, however i am afraid of they just breaking it, i had 3! Charge 3 in the past ( I bought 1 + 2 warranty replacements) i dont want to put any money on fitbit.
I am doing ok now with Mi band 5 so far, just hoping than Mi, Amazfit or Huawei come show up with a better, affordable option, in the meantime i stay tune with this superb channel!
cheers!
Huami is the exclusive producer of xiaomi's smartwatches. The mi band 5 is identical the amazfit band 5.
Fitbit Charge 5 is a worthless POS.
Hi Rob, thanks for all the great videos. They are really very helpful in helping us determine which smart watches to buy. Would you please make a review of the Amazfit GTR 3 Pro. It is a good watch but I have no idea if the Heart rate measurement was imptoved in the Pro version since in your review of the GTR 3, Heart rate measurement was its worst feature.
There's a new Xiaomi watch - Xiaomi Watch S1 that has great features and I would really love to know their performance with scientific tests.
Hey, is it possible for you to test theAmazfit Bip U pro? N also clarify what NYSE version refers to. Thnx in advance.
Exists a differene between gtr 3 and pro version...gets better?
Hello, are you planning to review Amazfit GTR4?
Thanks for the review. There was a RUclips review that showed a heart rate test result of the gtr3 pro. Although the review seemed unscientific, the results however per the video were great for the watch. The title of said video: "High Intensity Heart Rate Accuracy Test of Amazfit GTR 3/GTR 3 Pro Review" by WesKnows. Curious if the pro version is better.
I wonder how much difference a 3rd party strap could make. I'm debating finding a different watch and returning my GTR 3 Pro. I bought these nylon bands that help the watch sit much more flush with my weird wrists, but I have no other heart data tracking devices to test against.
Another excellent review and another watch to avoid. Can the Huawei GT3 do any better?
Spinning is typically one of the easiest exercises for an Optical HRM to get right. 😬 Great video as always! I'll be curious to hear what you think about some of the Polar watches for sleep tracking.
Hi Matt! Thanks for watching. I would love to do that. For now the price has held me back, but I should get over it and just see it as an investment ;-)
@@TheQuantifiedScientist - I wonder how much it would cost for me to ship you one to borrow for a while. 🤔
@@mlegrand It is kind of a waste that as "reviewers" we have many of these watches just lying on the self. However, to be relevant we generally have to get them near release, so many of us need to use them at the same time. I actually like the concept of borrowing a watch from the companies that make them. However, this means sticking to a time-table of a company. In general I think i should just bite the bullet and buy these more premium watches. However, growing up we would not easily spend these large amounts of money, so it is just not ingrained. What are your thoughts Matt?
(PS. If I had still lived in the Netherlands I should have waved my eyelashes at Ray ;-) )
@@TheQuantifiedScientist - 100% agree with you. Yeah, I actually run give-aways for people in the comments for all the stuff companies have sent me. But it would also be nice to have them around to compare to future iterations of devices. And I still have ended up with dozens of devices.
@@TheQuantifiedScientist maybe u should just make a video for affordable & under budget smartwatch /fitness tracker since most viewer aren't rich (pardon poor english)
beneficial review that gives you an authentic description of the GTR4
Waiting for the update on your GTR 3 to see if there are any improvements. Cheers!
Hi. Any plans to do one on the Ticwatch Pro Ultra?
Thanks for this info do you have video for the gtr3 pro?
wht i more concern for smartwatch is calorie burn. could u do video which smartwatch do track calorie burn accurately?
Nice review as always, just a request if you are reviewing Fitbit daily readiness score review please also include new heart rate data(after update)
I just got my first readiness score today
This is the only review smartwatch enthusiasts should read to save time !
Just to be clear, to get more accurate data from GTR3, one should get the latest update - Amazfit did fix some issues and now this watch are getting really close to Polar tracker
Hi! Thanks for the comment! Whenever that update becomes available (on my phone/region) I will take a look. Currently I cannot update any further
@@TheQuantifiedScientist Are you going to do a review of Amazon Halo View? If you don't plan on buying one I will lend you mine for testing as soon as I get it.
@@TheQuantifiedScientist Great detailed video! By the way, did you get a chance to review the watch again after the latest update? Thank you!
Really are you tested it ???
@@TheQuantifiedScientist any news about the update? Other testers says it's good as huawei GT3
Great review as usual.
Please review
Mobvoi ticwatch pro 3 ultra.
Huawei watch gt 3.
I think we need an updated review on this watch or the gtr 3 pro with updated firmware!!
Pls on the amazfit gtr 3 pro in the sleep graph is the red line, what is it? Thx.
Please perform a test of Honor GS Pro sensor test. I am using it for long time but not sure about the accuracy. Please.
Looking forward to Amazfit GTR 4 review!! :D
Did you also Test the GTR 3 Pro?
Any chance of having a Review of the GTR4 now?
Best reviewer for wearables!!! Keep up the good work!
I will not buy GTR3/GTR3 Pro. I don't believe GTS 3 will be better than GTR3 , so GTS3 is also off from my list...
I can't wait the review for the others from my check list:
1.Huawei GT3 (I hope will be accurate like Apple watch and will add emoji support)
2.Amazfit GTR3/ GTR3 Pro (❌⛔)
3.Amazfit GTS3 (❌⛔)
4.Xiaomi Watch 2 (aka Xiaomi Watch Color 2 global edition, I can't wait the global announcement)
He is testing with old firmware which he mentioned in his comments. I think it would be good if he can update to 8.18 and test it again if he finds time.old firmware had several HR issues even based on amazfit changelog in the latest release
The GTS 3 is supposedly a big improvement on the GTR 3 / Pro. I'm not sure why, but some people are claiming it. Doubt sleep tracking is any better, but they're saying HR and GPS tracking a major improvement. No reliable authority has tested it yet though.
Excellent. Companies would just put these in and sold off as marketing. But with your reviews it pits accuracy down to the core albeit some would say it is just in a smartwatch but. Higher tier ones do get better sensors
Hi, it would be great if you use different color for different devices in scattered plot.
Thanks bro
Under ZEPP > Profile > GTR 2e > Health Monitoring > Activity detection (When watch detects that you are doing exercises, it will automatically increase the detection frequency to guarantee the accuracy of heart rate data during workouts". I wonder if this is turned on when reviewing the watch?
Interesting and informative.... Regarding heart rate measurement, could the tracking interval play a part in the result? As is, the interval is set at 10 mins apart
He also admits measurements depends on how high you wearing watch on a wrist. I mean, if wear it correctly, than accuracy of measurements will be much higher.
The author of the video didn't checked difference in measurements between different location on a wrist.
Quite poor scientific method for research.
that's why I went Apple watch. After Garmin I am much happier of accuracy of my HR and GPS>
Charging once per 2 days is ok tradeoff of the accuracy of sensors
Series 7? Because the older one probably need to be charged daily right
oh my goodness....i just bought 1...,luckily i still have a chance to return the goods...
amazfit nowadays released GTR4 GTS4 GTS4 mini, would you test these new watches in future? Please!!
Is the heart rate band connected to this watch?
Thanks for all your great reviews! Are you planning on reviewing the GTR 4? Or at this point, have you given up on Amazfit lol
Can you measure the Oura ring?
I have no interest in buying this product but Ill watch the video because you go so indepth with your analysis. Ill be curious to see what you say.
Thanks Jim!
hey Rob, waiting for the amazfit gts TQS reviews!
Did you have stress monitoring enabled? I have read that it heavily affects the accuracy of Amazfit devices. The users who suspected this noticed fluctuations every 5 minutes, which is how often the watch checks stress levels if turned on.
I’d love a confirmation considering you’re in a unique position to test the reliability of these watches and trackers. Cheers!
Bummer, I guess I will return the GTR 3 that I purchase. Again thanks for the reviews. This is really sad because I thought that other you tubers where saying how good it’s the GTR 3.
please review on Amafit GRT 3 Pro...
Hey please make a new review with the updates firmware like the MiBand 7. Because I believe it has improved a lot. I don't have a Polar heart rate strap but I use the oximeter what I used when I had covid and the measurements are 90% of the time accurate. So please consider retest.
hello can your review gtr4?
Can you test the new HR sensor on the GTR 4
Rob could you do the spovan SW11 smartwatch.
Apparently firmware 8.18 improves hr tracking dramatically, could you test with new firmware?
Hi! My phone says it is at the latest firmware at the current 7.x version. Maybe it is not there yet for my region? Would love to test it
@@TheQuantifiedScientist pls recheck
@@TheQuantifiedScientist since you are using chest sensor to control test of HR tracking, could you please take additional test, where you test how positioning of watch on your wrist affects on accuracy of HR detection? I have Amazfit GTR 2, and I've noticed measurements of HR dramatically depends on positioning of watch on wrist, since it tends to show much lower BPM if you move watch closer to your palm. Like it can show 120 BPM when you over 150.
And I've noticed that you need to positioning watches very far from palm to get more accuracy in BPM
what about GTR4, when do you estimate you will test it?
I don't think he will, Pixel Watch came out just a few weeks ago and he already tested it, meanwhile the GTR 4 has been out for months and still nothing... I am literally waiting on his review for that watch to know if I should buy it or not :(
Do the garmin fenix 6 review pls, much support on your work!
You already have a review of the Venu SQ that has the same sensor as the Fenix 6.
@@francobellomo9979 aaa, thought fenix would be better, from I see the top 3 are apple, polar, fitbit
In your overview of all watches regarding quality on sleep detection Amazfit Bip U Pro shows up in the graphic but I couldnt find any video of your review on it, why is that? Im asking cause that is my watch at the moment
Hi Pedro! I am still editing that video :-). So, stay tuned!
@@TheQuantifiedScientist Thank you! Im a fan of your work, keep it going!
@@TheQuantifiedScientist Hi Rob, did you upload the Bip U Pro video? I was looking at a few Amazfit watches, and actually am curious if 33% more readings in Biotracker 4 make any noticeable difference in aligning exercise curves with reference device. If you could compare GTS4 Mini (With Biotracker 3.0) with GTS 4 (With Biotracker 4.0), it would help answer this question. Apart from more readings, I don't know if there is any difference in layout and lighting of the 2 sensors. Plz if possible, try to test the 2 newly released watches. Regards.
when are you going to review the t rex pro by amazfit!
Garmin Venu 2 seems to be in a wrong place on the graph of Devices' comparision (6:44 - 7:25).
In the video of Fitbit Charge 5 tests, it' s ranked in much more higher position which is more realistic.
And to make things worse the Amazfit GTR 3 doesn't let you connect an external HR strap like the Polar.
Can you do review on gtr 3 pro?
I wish i could watch this video before purchased GTR3
Even i update latest firmware . I'm not happy how inaccurate of PAI system and the root problem is the heartrate sensor.
I already ask them for replacement but still got the same issue with the new one. : (
The part about heart rate monitoring is simply not true. I watched your review before I bought my GTR3 Pro and you nearly convinced me not to buy it. I did anyways and am I glad I didnt listen to you. Well, at first there were problems like, workout restart and battery drain but to my surprise they fixed it with an update! Workouts can now last as long as I want and there are no restarts. Also, the battery lasts 7 whole days with 4 times a week workouts and all day measurments of all things but without the AOD. I cant say anything about the sleep monitoring as I dont have the headband thing to test it. But what I can say for sure is that the heartrate sensor always picks up the changes in my rithm. Every time I pick up the speed while running and my heartrate goes up, the sensor noticed it. I cant say does it measures it accurently (I dont have a cheast strap) but it pick up every change in my heartrate. Sorry for the long comment and bad English, but I would really like to see your rereview of the watch, cuz I love to watch your videos and I love my GTR 3 Pro!
Thanks for your Video.
You did your test with latest Firmware Update? There was approvement in heart rate messurement Band GPS Signal i think.
You can also do same test with GTR 3 Pro, this watch has also slight differences in Hardware
The HR sensors are same in all GTR 3 and GTS 3 series. Pro only has temperature sensor extra
@@MrSenthil21 i thought there are differences in Hardware too... Also in one Additional positioning System etc....
on your sleep chart, you show oura original does better than the new oura? I thought you had a video saying oura3 was pretty solid...?
I think he has 2x Oura Gen 2 rings (he did a video comparing the consistency between 2 of the same devices), so I believe the Orig is his first ring and New is his second.
He probably omitted the Oura Gen 3 from this graph as it has not come out yet and he has not had a chance to test.
I too would be interested in seeing how the Gen 3 compares, before I upgrade (I still have the Gen 2 offer for free lifetime membership) but now I'm really tempted to just wait for Circular ring to come out next year, as it seems like it has more features some of which are pretty neat (eg. vibration alarm to wake you up during light sleep), and Oura have now started getting into some really yucky business practices that makes me question my decision to remain their customer, even if I have a "free lifetime" membership. I just can't trust anymore that they won't take away even more features in the future and make users even with this type of membership pay extra for those features.
@@Kuk0san ah thanks - yeah prob just an old spreadsheet. I just went n upgraded to oura3 so my battery doesn't die and i can get free monthly subscription. but, yeah, oura3's dumb monthly charge - everyone hates it
@@SteveHazel I noticed that as well. The last video of the new ring was comparing the stats from the research paper Oura released so was not confirmed. Bit disappointing if the new ring isn’t living up to its promise though
Please do a video on Samsung watch 4 after the update as samsung claims they had a new heart rate algorithm you are videos are amazing by the way thanks
You should do a video about smartwatches that you would recomend.
Dude, your videos are amazing. Thanks for the all the efforts you are putting. Can you make a review for GTR4?
Please do a test on amazfit t rex pro
Please add Huawei GT 3 smart watch with HarmonyOs