Mi Band 6 Complete Scientific Review

I tested the Mi Band 6 against a scientific EEG device, and tested the SpO2, heart rate and step counting accuracy. Subscribe to my weekly Newsletter(!) on www.robterhorst.com
Instagram: / quantified_scientist
Twitter: @QuantifiedRob
👇Amazon Affiliate* (paid) links. Supports the channel, doesn't cost you any more!👇
Honor Band 6: geni.us/honorBand6
Huawei Watch Fit: geni.us/wAaY
Mi Band 6 (not recommended): geni.us/miBand6
Apple Watch 40 mm: geni.us/0gNGeO
Apple Watch 44 mm: geni.us/7Dom
Fitbit Charge 4: geni.us/wjAfjU
Fitbit Sense: geni.us/CSfYQE8
Fitbit Inspire 2: geni.us/iZHlb
Huawei GT2e: geni.us/aYVruh
Huawei GT2 Pro Classic: geni.us/iCgX
Huawei GT2 Pro Nebula Grey: geni.us/yD7ew9V
Huawei GT2: geni.us/xpAWsr
*My opinions are completely my own. However, I do earn a small commission if you purchase any of these devices via my affiliate links. It does not cost you any more money if you use these links.
The EEG tracker I used is called the Hypnodyne ZMax: hypnodynecorp.com/ from @HypnoDyne Corp
📹Fitbit Videos📹
Fitbit Charge 3/4 Sleep: • FitBit Charge 4 Ultima...
Fitbit Charge 4 Heart Rate: • Fitbit Charge 4 Review...
Fitbit Sense First look review and test: • Fitbit Sense Accuracy ...
Fitbit Sense Heart rate: • Fitbit Sense Heart Rat...
📹Apple watch videos📹
Sleep Cycle App: • Sleep Cycle App Review...
Steps: • Apple Watch 6 Step Cou...
Test: • Apple Watch 6 Accuracy...
📹First Garmin Venu Sq Video📹
• Garmin Venu Sq Heart R...
📹Oura Ring videos📹
Sleep Test: • Oura Ring Scientific S...
HRV Test: • Oura Ring Review: Hear...
Temperature Test: • Oura Ring Ultimate Tem...
📹Withings Scanwatch videos📹
Unboxing and first review: • Withings Scanwatch Rev...
Sleep test: • Withings Scanwatch Sle...
Heart rate test: • Withings Scanwatch Hea...
Q&A with Withings: • Scanwatch Q&A: Answers...
⏱️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
00:51 Mi Band 6 Basic Info
01:52 Results: Sleep Test Setup
02:29 Results: Sleep Test Comparison
06:40 Results: Sleep Test Overview
08:26 Results: Heart Rate Test
12:29 Results: Oxygen Saturation (SpO2)
15:32 Results: Step Test
16:55 Conclusions
17:43 Should You Buy The Mi Band 6?
18:28 Details
19:05 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 (KZbin Audio Library)
(4) Classique (KZbin Audio Library)
(5) Blurry Vision (KZbin 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.

[@hexrise3569]

Sad when I see other "reviewers" who only read paper specs in a video and call it test review have more views than you bro.

[@TheQuantifiedScientist]

Thanks! Maybe I'll get there some day. For now, I am already happy that anyone watches my videos😊

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Yeah. But this mad man goes for quality over quantity! He makes us happy, he is happy. Everyone is happy. #intrinsicvalues.

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Why sad man, we have The Quantified Scientist though.

[@hoanglong-nv6wv]

so trueeeeee

[@waz9407]

This is a proper review. KZbin needs more of these things - especially in the tech fitness industry . No bias, well rounded and with established standards for each metric. Subscribed!

[@TheQuantifiedScientist]

Thanks Waz!

[@MemberOfGeniusSociety]

@@TheQuantifiedScientist i hope you can review almost every smart band and watch

[@lucutes2936]

ZOV

[@truthseeker1934]

Finally, a tech review that cannot be substituted by reading spec sheets on Google. Instant subscription. Thanks.

[@jacobreubenaglipa5669]

Same here

[@tamuso98]

Same here

[@michaelrodriguez2919]

Agreed, instant subscription from me as well.

[@aaronjuliuslecciones3908]

YES

[@jeanpierregalea9048]

The funniest part of this scientific review is when he smiles and says that the product performs poorly.

[@yannaibrahim5912]

Hahahahaha yes cute though 😄

[@rajatjawade3229]

because he is not sponsored youtuber from MI

[@cinemapigeon4898]

Still pretty good for a $40 fitness tracker. Step accuracy in line with most trackers (good), sleep was still accurate for total sleep/deep sleep, just missed the 2nd half of rem (any other watch around this price point is far worse), and HR while poorest performing was likely a fluke (previous gens more accurate) , multiple comments pointed that out, and I can't find similar corroborated reviews of wild heart rates (likely sweat+not tight enough near wrist). The next big jump in tracking is going to be upwards of $100, the Fitbit Inspire 2 but with smaller greyscale green/fewer features.

[@musicplay32]

On Amazon over 480 people have given it 5 stars???

[@musicplay32]

😀?

[@mahmudulhasannavil6499]

Hey Xiaomi, Give this man a job as QA Manager! He deserves it!

[@lucutes2936]

Yup

[@davidmarcos1692]

As a Physician and an advocate of evidence-based medicine, your presentation of your findings are as good, if not better than most of the medical conventions I have been to. Great work sir!

[@RodrigoRz]

I’m PhD student in Behavioral Neuroscience and I find your scientific review very interesting and epic! First time I see a scientist doing this kind of material! Your statistical analysis in R studio is beautiful. Thanks to your studies I decided to buy the Huawei Band 6 to measure my oxygen levels and heart rate. Finally, I saw your research articles in scientific journals. Keep going! Best regards!📊🧠💡

[@TheQuantifiedScientist]

Thanks Rodrigo!

[@kabatengtengostendere8062]

Hi Sir is Huawei Band 6 better than xiaomi band 6? I' m a Filipino I really need smart watch for my case monitoring the heart and oxygen Spo2. Thank you

[@mykytakomarytskyi5066]

Man, this is real quality. Appreciate your time and effort!

[@kevinhighfly8829]

QUALITY REVIEW!!!

[@TheQuantifiedScientist]

Thanks Kevin! 😊

[@suvtropics]

Unprecedented quality. Objective scientific reviews of tech gadgets are so rare. Everyone just talks about their feelings.

[@Phenom98]

You said it, Jackie

[@meric12131415]

@@TheQuantifiedScientist I just grabbed the mi band 6 myself worth it the sleep tracking was a bit off though it says I woke up at 10:13 and I probably just looked at the time not woke up but it counted it probably just a kink though 🤣

[@agnaldooliveira3828]

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[@boredearthling4925]

This surprised me. I've had my eye on the mi band 6 since it was rumored to be on the horizon. I had expected a better turn out, especially seeing the mi band 5. As someone who uses wearables to keep an eye on various disorders, I greatly appreciate thorough testing

[@enigmamyth]

If you need absolute accurate results you should go for the higher end bands. It did quite well regarding its price tag

[@torababdullah7952]

there is a distinct sense of satisfaction from watching these kinds of videos where testing is done deeply and thoroughly. thumbs up for that

[@charlesleglerg7167]

Man, this guy is on a league of his own. This is essentially what a review should be like: insightful and factual! Thank you very much for putting out content like this, you are helping a LOT of people especially that these items are supposed to give us better awareness of our health condition!

[@nsiolios]

The best scientific test I 've ever seen for a device in internet! Thank you for all your time.

[@irregularstar2399]

I could never imagine seeing such a high quality review of a commercial product on this platform. Bravo.

[@awad2584]

This channel is soo underrated-it hurtssssss😭 Thank you so much for all your hard work👍🏾

[@adrian.valentim]

I'm flabbergasted by the quality of this video. This type of comparisons with more established measuring devices was exactly what I wanted but didn't realistic expected to actually find here on KZbin. Thank you for your work!

[@dimitarmetodiev2877]

Huge respect for the dedication mate ! This is one of the most in depth review I've watched recently !

[@nezhmimaletsov7918]

Amazing review! I love how you actually test the product, not only read the features. Keep up with the good work! Subscribed.

[@goankrish304]

Believe me sir, this is the best ever actual review I have watched of any device. And I have been on KZbin watching reviews of different products since almost a decade.

[@KiranKadambari]

Wow, this is incredible work hats off to you. This is what we need to make the final decision not the reciting of specs and features that 99% of the reviewers tend to do. subbed

[@ItsNicolau]

I don't usually like or comment on videos, but you deserve it man. I wasn't expecting such a great review, thank you so much! Keep up your incredible work!

[@gbiradar75]

Thank you for the authentic tests and analysis. Such an appropriate review in times where people get enamored only by design forms and fancy features. Kudos.👍

[@susheelkumar-yd4qi]

Man, i really appreciate you taking all the effort to give a scientific review. Thank you, would love to see more of you.

[@tommyseptian4601]

best scientific review ever !! this is what you call a review, great job !!

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Great! Can't wait for your recommend budget, mid level, high end device video.

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Glad to find your channel! These are very high quality reviews using data comparison.

[@ZenTeaNow]

Great review, and so much work involved! I like your channel, thank you.

[@maxbautista8013]

So worth watching! Thank you so much for this! You gained a sub!

[@ilkerhg]

This looks like a real review with some real measurements and data! Very good that it’s not about opening a box and talking about how the product looks and feels etc.. Already subscribed to your channel, keep it up 👍

[@TheQuantifiedScientist]

I appreciate that İlker!😊

[@hesamsoltanpanahisarabi5930]

cv '«.

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This man is detailed, crisp and clear with a smile on his face !! Pure Quality ! Keep up buddy doing this fantastic video Analysis !

[@Dom__x]

this is the most effort I've ever seen in a review video. Holly crap! Subscribed

[@martinnhantran]

EXCELLENT CONTENT. I have a mi Band 5 and always wondered how the mi Band 6 will compare.

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Bro, this is one helluva review! You just got yourself a subscriber

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I just accidentally found this channel. What a quality we can see here! Subscribed and waiting for more! 💪💪💪

[@Slip3ry]

I’ve never seen such a comprehensive review of the technical aspects of low budget device. You just raised the bar.

[@Libikuroi]

Oh thank god!! I've been looking for reviewer like you for ages. One that uses data and scientific method, and not only their professional feelings on the product. I can't spend cash I don't have on crap that doesn't work right.

[@preetizangulo3470]

Calling this a comprehensive review would be an understatement

[@TheQuantifiedScientist]

Thanks so much Preetiz!

[@robertlego9335]

This is the first Fitbit I have used. It has some new features kzbin.infoUgkxbkrje8Y7BaqRkAjimw-55ajvVo7RbcIp and I like the information that it gives me.I think the phone app could be designed to be a bit more accommodating, as it can be confusing to use. The rubber band is comfortable, and normally I do not like rubber bands for my watches, but this is comfortable.I am looking forward to seeing if this helps me stay accountable in my fitness endeavors!My only gripe is the box was very damaged when it arrived, however, the tracker is performing perfectly!

[@kengurooable]

What a great find! It's practically impossible to find a proper scientific review on wearables, I'm so glad I found your channel. Subscribed!

[@flokeyable]

Wow...dude you deserve more views. The quality of your research is crazy, probably the best.

[@excellencerunner7124]

According to me you're really quantified scientist. Love ❤ from India,

[@TheQuantifiedScientist]

Wow, thank you!

[@amkzkzk]

@@TheQuantifiedScientist me also from India

[@iamyourboss7495]

@Aki Sumi dude, he used quants to test the quality

[@Phenom98]

@@amkzkzk what are we supposed to do with this information?

[@amkzkzk]

@@Phenom98 U can get Information about Mi Band 6 and head to buy 👍

[@Th3Premium]

Bro, this is so cool!!! You deserve a lot of more attention

[@utherpendragon5965]

Awesome video, thank you very much for the clear, concise and easy to understand feedback. I look forward to watching more of your work. Be safe dude.

[@vighneshpai]

Hey, I stumbled into this video while surfing through youtube. I watched every second of this video! So far the best detailed video where it's reviewed Scientifically. Well-crafted video. thanks for the details and your efforts.

[@JodenPaoloPeroy]

Oh my Lord. I never thought I'd see the day someone put statistics and scientific testing to these smartwatches. Thank you and subscribed!

[@charltonlaurel9698]

Love these scientific medical tests to keep a check on what these large tech companies claim as health features. Would love to see how these companies improve over the year or if tech and their algorithms can get just as good as medical devices or close enough to a call negligible difference.

[@krishnagupta6323]

thanks man!! loved your work

[@mertlondo6278]

Your reviews are absolutely amazing!

[@Barbervdh]

Hi Rob great channel. Could you also do a video on the muse s ? Really interested in there EEG measurements and the conclusions on sleep stages. Keep up the great work, Barber

[@artcloud_5689]

GREAT REVIEW, THANKS BREAKING THIS DOWN TO SIMPLE TERMS ❤

[@TheQuantifiedScientist]

Glad it was helpful Mariana😊!

[@scottrowe533]

This a very well-designed methodology and a thoughtfully executed test of the Mi Band 6's performance accuracy. To be honest, this is the first video from your channel that I've viewed - but it definitely won't be the last! I am quite impressed with your knowledge of scientific testing and its application to lifestyle products such as fitness trackers. Thank you!

[@pranavgoyal2366]

Great comparision video. Keep up the hard work bro, u nailed it

[@SuperRidar]

Great in depth review. I wish he'd make a.list of the top inexpensive bands that are atleast 80% accurate.

[@peacekeepermoe]

Great review and proper scientific testing. We need more of this in this gimmick-filled world where manufacturers get away with lying to us for our money. Thank you... Instantly subscribed!

[@ssobolrac8012]

I'm now a subscriber! Super quality review and kudos to the effort man!

[@edgars.asuncionjr.3994]

exactly what I'm looking for. Thank you so much for this. ❤️

[@Pipp08]

With the last update the device works great , compared the device readings wtiht he Garmin and it was good the heart rate sensor was a bit slow but it was accurate , measured the oxygen along with a specific oxygen device and it was very very accurate.

[@steffenbruns652]

Hi Rob, great video once again! Could you maybe add some overall statistics for the heart rate and sleep tracking such as accuracy and bias+limits of agreement? That would make it much easier to compare different devices in my opinion.

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I really like this approach. Keep doing this, you earned my subscription.

[@sugarrfree]

You doing fantastic work, keep us busy with content 👏

[@haileynichelle8343]

Thank you so much for these reviews! Could you make a SLEEP SHOWDOWN video where you compare as many sleep wearables as possible and rank them based on accuracy, ease of use, impact on sleep, etc. ?

[@zorawarchaudhary225]

Man you are great. Earlier I was planning to buy the mi band 6 but seeing your tests I've changed my mind.

[@leonevdkooi444]

waiting for a firmware update. in a recent video I saw, it is accurate

[@CarlotheDJ]

@@leonevdkooi444Just ordered mine earlier this week..Where Is video with updated firmware to MiBand6

[@thanosmadtitan7475]

Really liked your time stamping feature and understanding that time consuming thing and putting so much efforts in making videos. Thank you. Subscribed immediately.

[@jocelioferreira2679]

This is best review! Thank you so much! I hope your channel grow a lot.

[@sankaranarayanan5195]

Thank you so much! I'm waiting for your analysis on Mi Revolve. You are amazing. Based on your videos, I got my Oura ring and it changed the way I look at recovery. Keep them coming.

[@TheQuantifiedScientist]

Wonderful! Thanks for the compliment! I am testing the Mi Watch, not sure if the Revolve is available in Europe.

[@shankar0cr]

Do you live in India?? If, yes then where di you get your Oura ring from?

[@MimiMimi-sl4fc]

Same here!!

[@Gurdia]

This is an amazing review. You actually review and test the things that need to be tested for on a device like this. I went through way too many reviewers that just list the features instead of telling me how good those features actually are. Thanks.

[@hassanmoosa143]

Mind blowing analysis.....great work bro!

[@HiamBallesta]

I usually don't watch videos longer then 10 mins, but this is a good, real and objective review. New subscriber, congrats!

[@DK-ox7ze]

I believe that Miband 6 has received several firmware updates after this review. It would be interesting to see if the accuracy has changed since then!

[@Marta1Buck]

I second this

[@Jur1_00]

@@Marta1Buck does using a different app produce the same results?

[@egesozeri]

Is there any update?

[@basora]

@@Jur1_00 I wonder that as well. There is a nice software app Notify for mi band that can modify settings. I believe you can sample higher rates to heart rate and sleep with hit to battery life.

[@NightVisionOfficial]

@@basora also sleep as android

[@dinindu9941]

wanted to buy mi band 6. watched this video and changed my mind. thanks for saving my money

[@dinindu9941]

I wanted something that is more accurate. I'm going to get a polar H10.

[@ohanagrace7206]

Deserves more subscribers! Thank you for the quality review.

[@NM-vw6xq]

Awesome review, such an underrated channel. Thank you for all the time you clearly took out to review this thoroughly, you got a new sub.

[@aswin1690]

You're the best when it comes to fitness gear review

[@TheQuantifiedScientist]

I appreciate that!

[@04437000]

Oh maaan, please do a vídeo testing the new Huawei Band 6! Im only waiting your vídeo about it to know it The 24 hours spo2 test is good, tô buy or not. Hehe thank you só much and congratulations for your great work.

[@cheeseca7529]

I plan to get this for my dad who has heart issues. Thank you for the thorough testing!

[@imiyuru]

So glad I found out this channel. Amazing content ☺️

[@tikiortaka]

Massively underrated!!

[@everythingabouteverything6285]

At First, this is a really well done review, you can see, that there went so much effort in it, really good👍 I just want to say something to the heart rate, I have compared it to an Apple Watch, and the Mi Band 6 have gotten pretty similar results in the heart rate, maybe they have done now a Update, because I think the Apple Watch has a pretty accurate tracking. In my comparison was the Mi Band only 2 or 3 beats behind the Apple Watch and sometimes it was exactly timed with the Apple Watch.

[@nithikasandinu9034]

this is really helpful thank you for your dedication

[@natasaragih9970]

Sheesh, this review is next level! Appreciate the effort you put into this!

[@markpelayo]

Wow you are now a scientist!

[@alexest2665]

Amazing review! You are clearly the best in the business. Will you ever do review of the Galaxy watch 3 or Watch Active 2 ? Thanks !

[@mohbounu]

Exactly what I want to say

[@TheQuantifiedScientist]

Hi! Thanks!! I actually reviewed the GW3 a few weeks ago :-)

[@waterhopper24]

Rob I was waiting for real review like this one! It is so difficult to find one out there. Most of the reviewers are showing only data that I can Google myself without even touching the eq. I'm going to check out your other tests, because I see you did them for more expensive watches too. Keep up the good work!

[@kashanizhar7806]

Really appreciate the hardwork you put in this video. Subscribed.

[@the.painclinic]

Waiting for your special SpO2 comparison 👍🏻👍🏻

[@jeffersonmp4]

Samee

[@jaynadado2807]

This is the kind of review I am looking for!! Thank you. Can you do it on Huawei band 6? I am planning to buy either mi band 6 or huawei band 6

[@vastateofmind]

Rob, LOVE your science-based reviews, especially of the Mi Bands. Keep up the awesome work!

[@miacaraballe7077]

Thank you for the quality review. Was planning to buy this watch.

[@mephistoschiffer4957]

I was considering buying the smart band before I watched the video. Thanks for the information now I'm going to search for other options.

[@TheQuantifiedScientist]

Glad I could help

[@leonevdkooi444]

waiting for a firmware update. in a recent video I saw, it is accurate m.kzbin.info/www/bejne/e4uaYqaVbpplbqs

[@moisesmiramontes8704]

Beautiful analysis as always 🙌🏼 any chance you will be doing the Garmin Venu 2 ? 🙏🏼

[@EMARTRAHOBBY]

I also have garmin venu2. i feel i want to sell it off because its apps only shows sleep tracking graph for 1d and 7d only. No way can see sleep tracking for 30d or 1 month. I watch this video because i am searching for garmin venu2 solution for its failure to provide such basic data presentation

[@abhishekahirvar7783]

Bro that's what i always wanted to know! Awesome content! Absolutely love it

[@hardwood4193]

That's what KZbinrs are looking for , honest reviews . Keep it up . I'm sure you channel will be helpful for people and number one 👍

[@DantesInferno96]

Evidence-based medicine always wins. Thanks for this review. As a medical professional, I love these kinds of reviews, also because I'm a gadget nerd and fitness nut.

[@Ben-rz9cf]

Even though these devices are not super precise the fact that we have even somewhat accurate devices for such an affordable price is amazing

[@sonhai53]

Tks bro. Im very like your review by the science way like this. Can you review SmartScale by this way. im looking forward to this

[@TheQuantifiedScientist]

Hi! Thanks! Maybe I can do that some day 😊

[@abolfazl5438]

Thanks for the time for a great review

[@alundrasrt]

Just discovered your channel. What a work! Thanks!

[@sirtipsalot7320]

I have both the Mi Band 6 and Inspire 2 (as well as a 2013 Fitbit Flex). Overall, I kinda like the Inspire 2 a bit more (due to the Fitbit app though), but many parts of the actual tracker I like more on the Mi Band 6, bigger better colored screen, better UI (you actually see multiple apps on the screen), better battery life by at least a few days, more features, you can check your weather, set alarms directly on the watch itself (Inspire 2 needs alarms set from app), change music through the Mi Band, etc... Fitbits don't start competing with the Mi Band 6 from a feature standpoint until their $150ish offerings like the Charge 4/soon 5 and Luxe. I also so far find the Mi Band to have better step accuracy, as moving my hand like picking up a glass of water adds 20 steps from the Inspire 2 (I think it gets better longer I wear it, plus I am trying to see if setting it to dominant hand then wearing it on non dominant can help lower its sensitivity). But, the Inspire 2 and Flex (both of which get total time very similar to each other) have amazing sleep tracking, to the point where the Mi Band 6 adds another 30-45-60 minutes of sleep that I know I'm not getting. Fitbits deduct tossing and turning sleep, Mi Band does not, so I think that's the difference. However there is an assisted sleep tracking option that uses more battery that I think will help with sleep accuracy of the Mi Band 6. As for the app, the Mi Fit is pretty good, however it's no where near as feature rich as Fitbit's app, like I can track calories consumed easily via Fitbit, literally search up any food and its nutritional facts will be there.

[@shekhartomar]

Very good review and informative video Please provide a ranking of band in same range like MI Band6 , honor band 6 and other. Same for smartwaches.

[@TheQuantifiedScientist]

Thanks Shekhar! I'll see what I can do :-)

[@TiwariSaket]

No other video on youtube is that much detailed. Loved it.

[@Do4Love71]

Youre going far with this typa scientific content, never stop creating content like this, thank you.