Amazfit GTS 2 Mini: Complete Scientific Review
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- Опубликовано: 14 июл 2024
- I tested the Amazfit GTS 2 Mini against a scientific sleep EEG device, and tested the SpO2, heart rate and step counting accuracy. Subscribe to my weekly Newsletter(!) on www.robterhorst.com
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Twitter: @QuantifiedRob
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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
01:04 Amazfit GTS 2 Mini Basic Info
02:04 Results: Sleep Test Setup
02:43 Results: Sleep Test Comparison
06:06 Results: Sleep Test Overview
09:00 Results: Sleep Versus Other Devices
09:35 Results: Heart Rate Test
14:16 Results: Heart Rate Versus Other Devices
16:32 Results: Oxygen Saturation (SpO2)
19:31 Results: Step Test
20:39 Conclusions
21:30 Buy The Amazfit GTS 2 Mini?
22:16 Limitations
🎵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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The only video on yt that makes me sad as an gts2mini owner:(
but you are doing a great job, thank you for all your work!
Thank you so much for this review. I had asked about amazefit mini a month back and comparison with mi watch on some parameters. I really appreciate your attention to details where you included the comparison part. Godspeed, keep doing the amazing work 👍
Handdown the most detailed review of any smartwatch I have ever seen 🙌
Wow! Glad I found your channel before spending cash on the gts 2 mini. Would love for you to test the gts 4 mini, as GPS and biotracking should have seen a significant upgrade. Keep up the good work. Much appreciated.
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?
Realy cool, thanks for the recording. I'm curious also about some of the realy expensive Polar and Gramin watches how they perform compared to their very high price.
Thank you so much for this review. Hoping to see some more budget options reviewed.
Just found your channel today. Spared me from buying an inaccurate device. Best review I found for this particular device. I will look your other smartwatch reviews to see how they perform. Thank you!
Thanks for this Rob, I really appreciate the efforts.
I think this is pretty accurate in day time napping since it only records deep and light sleep.
I'm glad I found your channel! Great work! Can't wait on GTR 3 pro review!
Hi Rob, your review is the best, nothing beats the actual scientific data when determining the accuracy of the wearables. Hope you also review Amazfit GTR 3 Pro :)
Great! Very useful video. Many people have one of this, and is good to know how accurate it is. Thank you so much.
I love this channel so much. I love the effort that goes into the scientific research and the way the info is presented.
I do have a request. I know that the two Amazfit devices you reviewed has mostly been a disappointment but I would really appreciate if you could give the GTS 3 or GTR 3 a try please. I have a GTS 2 mini and I’m disappointed in the accuracy but there’s no other device in the same price point that looks just as good as either of these. I’m really hoping the sensors in the GTS/GTR3 are much better so that I could justify upgrading to that…
Man I Was Just Waiting For You 🙏🏻. 👏🏻.
Really Thank you 👍🏻.
Keep up the good work.
Nice tests! Waiting for Amazfit gts 3 and also the bip s! Thank you so much
Fantastic work! Thank you for doing and sharing all of this.. 👏🏼👌🏼
Wow! Thank you for doing this content!
Dude, your channel is absolutely underrated. Love your content! ♥️
Thanks for the analysis, it confirmed what I already suspected. It's a pity since as you have pointed out it's a really nice looking device, very thin and light
I m just amazed at your content🤯 keep up the good work👍
Hi Rob, loving your videos so far!
It would be nice to have a video of a comparison of the most accurate devices you have tested so far, like a top 5! Keep up the good work! 💪🏼
That's what I was thinking. Also based on price level which is most accurate.
I found this video in recommendations. I didn't really looked at the title. I thought it would be another specification reading review. I just needed something to watch in background and I recently bought this watch and waiting for it to arrive.
I was shocked. Scientific measurements, comparison with other watches, no time wasting. End up just watching all the video and forgot what am I supposed to do. I wish there was more reviews like this. I even subscribed and I don't usually like to watch reviews of products I don't intend to buy. I don't have words how awesome is this content.
And about the watches itself. Heart rate and sleep measurement are just sad. It's good to know, that I can't trust this numbers and don't need to even look at it. Gladly I bought it not for this measurements, but for smart features. I wanted a big square screen, nice design and lot of useful smart features (and custom watch faces). So I happy with a purchase, but measurements are a bummer.
Thanks so much!
you just gained a new subscriber, keep up the quality work🙌
Your analytical visualizations are brilliant!
Great review! Thank you very much for your work!
I tried to compare amazfit mini with my Fitbit Alta HR and noticed that while Amazfit was good enough in step counting, it wasn't good at all with my sleep tracking.
It is better in GPS tracking that the Fitbit devices, though and has a better screen than all Fitbit trackers (not watches).
I also noticed the problem with HR accuracy during my exercise sessions with both Amazfit and Fitbit, though, Fitbit performed a bit better.
Nevertheless, your review was quite thorough even if done on one person only :)
You killed it!! This is what actual review is. Thanks for all the great work!
I really needed this
Amazing comparisons…! Excellent work❤
Would be great if you could do a recap for the year. Top overall picks and best for fitness or sleep tracking etc
I love this channel, extremely helpful
Thank you for creating this video .
This video saved my money. Going for Fitbit charge 4. Appreciation from India ❤️
What an amazing job you do with your videos! Thank you very much. Subscribed.
Any chance of reviewing Ticwatch Pro 3 Ultra? I wonder why you never reviewed any of their devices. Got the watch the other day, and I can't help but wonder how accurate it is.
thank! keep up the good work!
Man what a great job!! Thanks
Thanks man, it really helped
Omg what a fantastic work sir!
LOVE your reviews and the r
Genuinely scientific approach... Great! Pity that, as I understand, you're not one of those guys who get the devices for free for testing from the manufacturers, we could enjoy probably more videos I that case...
That's great work!
Appreciate your efforts. Tq for detail review.
Just bought this watch and the Huawei Watch Fit and was not sure if I should keep the Amazfit, well thanks to you this made my decision easier lol
Thanks a bunch, your timing is perfect
Hi Rob, Your review of wearables is really amazing. Request to review tic watch pro 3 ultra thats launched recently.
I can't wait for a complete scientific review for Amazfit GTR3 / GTR3 Pro and Mi Watch 2 when announced (Mi watch color 2 - China).
Great inputs!
Superb content...normally i don't subscribe easily but this channel deserved to be subscribed
Wow very detailed scientific review. Keep it up
Yeah! This is an excellent review method. With basis, not opinions only
Very very comprehensive... amazing..liked.. subscribed
Hi, Rob! Amazing job! Thank you! Please, make the review of Garmin Forerunner 745. It has features as Whoop or even better. If it's similar in accuracy, we can consider it as the best sport tracker
superb channel i found out today 😯🔥 subbed !
Waouh I just love the review. You are doing a great job. I just love the scientific review of the smartwatch. You just gain a subscriber. Keep it up
I'm so grateful for your fast reply last week about its accuracy issue before buying gts 2 mini....
You saved me bro ❤️❤️❤️❤️❤️❤️
Hey, loved your channel as soon as I found it! Can you do a review and compare this to the 4 mini? It came out a few months ago.
Personally. Fucking amazing work right here. ❤️❤️ Admire the dedication to your commitment to science and scientific methods to quantify the accuracy of these wearables
Accurate heart rate is one of the most important things to me personally.
An Amazfit was one of my first smart watch purchases. I sent it back for a return after 2 weeks being highly disappointed in the heart rate tracking.
An Apple Watch was a big investment for me, but it has been super accurate and just an absolute joy to own and use.
Dammit, you deserve more subscribers bro!!
Please test the Amazfit GTS 4 Mini as well. They've upgraded the sensors for this generation. (Maybe partly after feedback from your channel)
It'd be nice to see how that performs.
Your presentation is very nice man.
Yes finally GTS! Please do another of their devices, lots of promising smartwatches
All GTX 2 use same sensors so the accuracy will be same. Nothing promising about it.
Quality review , best review I have ever seen for smart watch or smart band . Please review indian smart watches like dizo watch 2
Sigh... As always horrible heart rate accuracy. Thanks a lot for that comparison segment.
Thanks Rob.
Hi!
You do a really good job man
Can you please do a test for the Amazfit GTR 3 pro ?
Thanks !
I kinda only cared about steps accuracy, which seems to be decent, thank you for the test! Apparently gps accuracy is also alright, being slightly above average (no watch in this class range has particulary amazing gps). I basically need it just to track my walks without having to carry my phone all the time, and of course for time and notifications during the rest of day I .. so I got it just for that and nice looking design. It was only 73e after all. It sucks probably for most potential buyers though
How is it working now. Is it worth to buy . Sounds like you’re not fully satisfied:) even steps accuracy is 10-20 % off I think.
Retest the GW4, it got an updated HR algorithm a few days ago and now it doesn't cut out anymore.
Now its ok?
Nice Review. Please review for Zeblaze Stratos
In future videos, would you be willing to note when an Spo2 sensor is continuous, similar to a dedicated pulse ox, or whether it takes a single "snapshot" that can be repeated?
Can you do GTS 4 mini please.
Agreed with the data
I own one for my self And using it for more than 6 months. Heart rate is not accurate in cycling but in my running sessions it performs well. Also GPS is accurate but sometimes having issues connecting to GPS. Overall looks and feel of the watch is nice but if you are looking for fitness tracker I will not recommend this watch.
Thanks. Another one to avoid if you're interested in reasonable HR. I appreciate that you can't do them all, but do you think you will eventually assess the Huawei GTR3 which has the trendy saucer shaped HR sensor?
Hi Rob, thanks for another great video. This week the Huawei Watch GT3 was presented with a new heart rate sensor, they claim to be more accurate than an Apple Watch 6. Hopefully you can analyze it. Greetings.
Better than the Apple Watch?? Wow!
@@MimiMimi-sl4fc Yes, I do not believe it until compare it, they say that increasing the pressure through the glass increases the spectrum of light from the LEDs.
Im waiting for this to get reviewed too ! , still looking for my first smartwatch
Please rate it. Its said quite similar to garmin with 8 sensors
Can you do a scientific testing of the Biostrap Evo active set? They have been recommended by the Sleep Foundation as the the best consumer sleep tracker. It would be a bonus if you can compare it or other wearables like Garmin venu 2 with its latest sensor. Thank you 😊
Hey, I have a little question for you :) When comparing your research, what would you say are the top three best sleep tracking watches/wereables in terms of sleep phase accuracy. Thanks in advance
Hey Rob!!!
Still waiting for that video on Fossil Gen 6. I know you work tirelessly to provide us with all this data. So, I will be waiting for the upload.
♥Love from India Bro♥
If possible could you please suggest me a good tracker which has
1.) Good workout tracking Accuracy
2.) Auto workout detection
3.) Good Sleep detection accuracy
4.) Can be Synced with Google fit
P.S. I am an android mobile user.
Loads of love....♥
I bought this device. I'd previously has a Garmin Vivosmart 5 but I wanted a bigger display and better sleep tracking (my Garmin detected almost no deep sleep every night even though I thought I'd slept well). This one, as your video say detects deep sleep OK. However what I wanted to add is that, if GTS 2 mini detects light sleep instead of awake for periods you are reading before sleep or you wake up early and can't get back to sleep before rising, you can edit the start and end of sleep time in the app to remove the times you were awake but the sleep tracking detected it as light
sleep. It then recalculates the stats and your sleep score. So this is at least a fix if you know roughly what time you finish reading or you work up to early. This probably applies to the other Amazfit devices running on Zepp app although haven't checked. I read on my Kindle at night. I barely more when reading and am very relaxed so no sure any device which doesn't read brain waves would get that I was awake and not light sleep
Amazing work. Subscribing now.
For the SpO2 test measure it while stopping breathing, after a while it should drop.
thanks for not wasting time
Great review. Please do amazfit gtr3 pro 😀
you need more subscribers!
Great videos. Please do huawei watch 3.
The video is wonderful. Can you please tell which is more accurate in all these aspects between GTS 2 Mini vs GTS 2 MINI New version
Please make a video for the new MI Band 7pro ! And Thank you for the great contents good sir 🙂👍
Excellent video 👌.
I had two Amazfit watches. They were terrible in detecting heartrate. I would wager if you would use it in running it would show higher heart rate. They have some weird movement algorithm connected to the heartrate.
Based on your reviews, I went with a Huawei Band 6. Happy with the heartrate reading on the device.
Keep up the good work.
What Amazfit watches do you have?
Thank you very much
As always the most professional and scientific review.
It seems the table which shows sleep stages in comparison to EEG , the Light column numbers summation reaches to 100.1 % instead of 100%
I find some typing mistakes on my textbook that revised every 4-6 years.
That's so cool.
Just for telling you we are watching your contents very well and making a decision to purchase a smartband strongly depends on your great videos.
Thank you again
🌺🌺🙏🙏💖💖
What band your currently using
@@krishnayaswanthchowdary1237 I have mi band 6 , huawei band 6 , Fitbit versa2 , Fitbit inspire 2.
The fitbit is incredible particularly for sleep analysing. Mi band 6 didnt satisfy me.
Huawei is pretty good with about 2 weeks battery life.
Versa 2 is a big smart wath and somewhat with difficulty during sleep.
In my opinion , the score of each above smart watches. Out of 10
Inspire2 = 8
Huawei band 6 = 7.5
Versa2 = 7
Mi band 6 = 4
🌺🌺🌺
@@Babak7712 what about amazfit gts 2 mini
@@krishnayaswanthchowdary1237 I didnt try it. But it seems sleep analysis is not good about amazefit
Please compare GTS 2 mini vs GTS 4 mini. Thank you
This video just makes me feel so good that I returned my GTS2 mini. I did suspect that it was inaccurate as I was comparing it to fitbit charge 2. Thanks a lot for this detailed review, I really appreciate it!
Same bro😀😀
Now wait for huawei watch fit on Amazon or huawei band 6 is great in terms of accuracy 👍
@@vijayp220 guess what!! I bought huawei band 6 itself 🤣
You get what you pay for.
@@Mr.Riffian glad that you understand how selling and buying works. Good job timmy!!
You should definitely check new Amazfit GT3Pro! I wonder how accurate their new bio sensor is
P.S. Still consider Huawei Band 6 as the best tracker for the price it is sold
definitely
the app is fake don't fall for it
Hi Rob. Thanks a lot for another great review. Look, I was wondering whether it is true that for these devices to track activities and other stuff more accurately it takes some time for the algorithm to "learn" the user's particular "patterns", so do you think this could affect your data collection? I know you gather this data for several days and all, so the sample size IS a limitation in this case, but what I mean is, for instance, I've heard some reviewers say that, if you're a runner, heart rate detection gets better and better as you use the device during running, so I dunno. Just wanted to know if you have any thoughts on that. Thanks again for your great work!
There is no logic to that argument. It is a measurement device, measuring rather rudimentary parameters. There is nothing to "learn" here.
Hi, I think you are confusing interpreting the data and learning from the user with taking the data from the user. The first thing is that the watch learns to interpret your heart rate, HRV, respiration rate, SPO2, temperature and it will give a report as time passes based on your body. And the other thing is to take data, that cannot be learned how to take it based on each user, each data is taken in the same way in all because there is no measurement error.
nice review ;)
Have you received the WHOOP 4.0 ?
Your review changed my buying decision and I bought Huawei Watch GT 2 Pro instead Amazfit GTR 2..
hey 👋 what about [second version] of gts mini 2? I see on aliexpress sell like new version of gts 2 mini did you have some plans to see is it difference between two version's?
I have found that the GTS mini 2 has issues with heart rate readings (when working out it'll detect half heartbeat rate) and a restart corrects it.
😍💗 Thank you I request this few days back 😊
Can you recommend a better smartwatch for best accuracy i just subscribed and liked the video
Thank you. Can you do a video on Amazfit GTS2 Pls Thanks
Please do a scientific review of Amazafit gtr 3 pro.
Would love a review on the amazfit gts 3.
amazing content
Our mini 2 seems to be very close to the dedicated oxy meter. Depends very much on how it's worn when testing.
please test also the new amazfit gts 4 and gtr 4 thank you