This guy is the only guy in RU-vid 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.
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!
@@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
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!
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 👍.
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
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.
Thanks for the review. There was a RU-vid 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.
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 RU-vid. 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 RU-vid! 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.
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
@@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.
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 ;-)
@@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)
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.
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!
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.
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
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!!!
Thank you! Another RU-vidr compared the GTR3 PRO to the Polar and claimed very high accuracy. You proved that this is not the case. They share the same sensor. Please update re: wrist positioning as this point is interesting.
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.
I bought a Huawei watch gt2 pro because of better heart rate monitoring than Samsung galaxy watch 4, especially during running exercise. Thanks for the info!!!
@@nil7705 I think they have resolved this issue for the run app. Probably was a software issue. But some apps like "other Workout" still have this issue.
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
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.
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!
Here's the thing. I have been using it for a week now. So what i found out is that it is accurate if you wear it correctly just as you saw in your last bike ride where you got really accurate heart rate measurements. The problem with the GTR 3/pro is that slight deviations in the wearing can make it inaccurate. So make sure you are wearing it properly. Also I am using an updated firmware so that might also have a role in it. Cheers. And a side note about sleep tracking, well i wouldn't really care if my rem was a bit inaccurate but would it the deep was too inaccurate. So i am fine with it for now. Thanks for the review btw.
Do you think the heartrate is relatively good after the update? I don't care about sleep tracking, but would like the heart rate to somewhat accurate to better calculate my calories during runs. Also, did you try GPS tracking and if so, how accurate is it?
@@lencekk to me all is good. At least that's what it seems. I have verified it with the oximeter I used when I had covid. And it mostly coincides with the watch. Heck the watch gets the next measurement of the oximeter before the oximeter. I don't do much outdoor workout so don't really know about the gps accuracy but one thing is that the gps won't work indoors. They aren't as powerful as our phones' gps. Also the sleep tracking is very decent. Specially when it comes to wake detection. Even that one minute that you are awake when u get up to turn your alarm off so that you sleep an hour more(and be an hour late in, EVERYTHING) is also detected by the watch. Soo.....yeah it's good. But the only thing this is weak in is that since it's not widely popular, app development for this is pretty slow and almost nonexistent.
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!
I was waiting for this watch for a whole 4 months before it arrived in my country. One of the most elegant smartwatches, if not the most elegant. Very intuitive, very customizable, with an attractive interface with very cool graphics. It has the smartest watch faces of any other brand. Sleep tracking seemed accurate of the time I went to bed and extremely accurate of my wake-ups during the night. There was no way of checking the accuracy of the sleep phases, though, but the sleep score was reflecting my overall mood in the morning. It has limited multitasking during a workout, with access to the music player and phone calls only. When the workout is paused, the multitasking is unlimited to any function. Music player buttons are very INsensitive to the touch. They need a prolonged touch and to be pressed several times before they react. Not very convenient during a workout. Battery life was crazy with an average consumption of 10% daily with all the metrics on and set to the most frequent intervals and with a weekly usage of the GPS for about a total of six hours of operation. This is where the serious weaknesses of the watch begin. I got this watch mainly because I'm a cyclist and I do most of my daily transportation on my bike. I may do up to a hundred kilometers weekly. No matter what combination of GPS settings I used, the GPS was inaccurate with the routes being recorded over buildings in erratic lines, and with curves being shortcutted to diagonal straight lines. Stopping at traffic lights or junctions was automatically picked up immediately and paused. Resuming was picked up within the first 10 to 15 meters. However, the Zepp app would not connect the dots between pause and resume and they would show on the map as gaps. Not a big deal but the problem got worst when the pause was more than 10 minutes, during a visit to a store or a stop for a coffee, for instance. The watch would not pick the restarting of the activity. In one route, a total of 19,4 km was recorded down to 4,6 km. After this incident, I noticed that the watch needed to be resumed manually after having automatically paused for more than 10 minutes. Not at all convenient, as I tend to get forgetful. That's why I needed a watch that I could rely heavily on its automation, but unfortunately, it turned out to be unreliable. However, the HRM and SPO2 seemed to be reasonable with no irregular spikes or ebbs. Additionally, after the third week, I noticed a battery drain. On the third recharging, the watch was charged in the evening to a full charge, I put it on and lay latent until I went to bed. By the following morning, the battery charge had dropped to 66%. I was really sad when I had to return the watch for a refund. Even though the watch is not serving my own needs and lifestyle, I would still recommend it for someone who would use it to track their overall wellness level in a lifestyle different than mine. P.S. I was informed that two consecutive updates fixed the issues I was having, so I rebought a new one. It's been 3 months now and I haven't regretted it. I love it! 🧡
@@abeerbundele1361 There have been major improvements in the updates since last March. GPS not extremely accurate but I'm ok with it. Very stable and customizable ROM and I still love it! I'm sure you will love it as much!
@@Dinesh-XP All I can tell you is that the overall grade I m given the following morning reflects my mood. It can also accurately spot the times I may wake up during the night for peeing. You can always callibrate the times you go to bed and wake up.
I've been using the Pro version for 2 months, and I'm quite satisfied with its heart rate. So I'm wondering if you can do a similar wonderful review on the Pro version.🤣
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?
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.
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?
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 :(
@@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
Bought a Amazfit GTR3. I really loved the Zepp app. Very user-friendly and easy to understand. I also loved the design of the clock. It is also very easy to use. BUT... after training and cycling with the clock for a couple of days I was very disappointed. The heart rate measurement is beyond horrible. The clock measured my heart rate to 60-80 when if was clearly near my max about 165! It did this several sessions. I had to return the clock. Don't buy it. I ordered a Polar Grit X, will see if it's reliable.
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?
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!!
Maybe you ought to consult the Amazfit firmware database before running the tests, so that you've ensured that the tests run on the latest update, which could potentially yield more reliable and objective results.
Hi Meni, thanks for your comment. As I mention in the comment section of the video, this was the latest firmware available in my region. I will be doing more tests of course for new firmware when available. Have a great day!😊
@@TheQuantifiedScientist Very interested to see if the results change after the latest firmware update. This watch seems to check all the boxes, but it's worthless to me if its not at least semi accurate on the HR tracking.
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.
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
I have had a fitbit charge 3 for a long time and was thinking about this one looked nice, great battery and good set of features. Now with watching your videos I will not be going that way. Got to figure out what I am thinking wanting to spend under $250.
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
Wow surprisingly inaccurate heart monitor, great review as always, interested to see how the new oura ring 3 and huawei gt3 shape up as they have new sensors in both.
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.
These videos make me appreciate my Apple Watch a lot more, i was always impressed at cheap smart bands, but you do get what you pay for. The Galaxy watch 4 has no excuse though. Great content
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.
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.
Hi Rob, you have many followers begging for the Amazfit GTR 3 pro to be tested! We do appreciate the work and effort you put in and would highly appreciate if you can put nip this one in the bud. Cheers 👍
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. : (
Bro all smart watches are almost same. They measure from the wrist and they measure your vein moves , but hr polar band measure from your chest as a beat to beat . İt is normal ecg , but wirst could be wrong , if you move your fingers it means more much pulse vein move it means more much heart rate numbers..
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
@@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.
