Huawei Band 9: Full SCIENTIFIC Review (I Was WRONG! & Right…)

[@TheQuantifiedScientist]

▬▬▬▬▬▬▬▬▬▬👇DISCOUNTS/AFFILIATES!👇▬▬▬▬▬▬▬▬▬▬ 🔴 Best place to get a Huawei* ;-) : geni.us/HuaweiBand9 🔴 Whoop Strap 4.0: join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership) 🔴 Eight sleep 350$/200$ (€) discount*: eight-sleep.ioym.net/TheQuantifiedScientist + add code “UNBOXTHERAPY” or “TQS” for full discount 🔴 Oura Ring Link: I recommend you search for a discount on reddit with the "Refer-A-Friend" program! If you can’t find one: ouraring.sjv.io/rQ4L33 (affiliate link that supports the channel, but doesn't have a discount) 🔴 General Amazon link*: geni.us/thequantifiedscientist ☝Amazon Affiliate* (paid) links. Supports the channel, doesn't cost you any more!☝ 🟢 Instagram: instagram.com/quantified_scientist/ 🟠 Shorts: www.youtube.com/@smartwatchshorts 🔵 Newsletter: www.robterhorst.com 🟡 Twitter: @QuantifiedRob * Affiliate (paid) links support the channel by earning me a commission on any sale, and it doesn't cost you any more! My opinions are completely my own, and this content is not sponsored. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

[@tubejuanso]

He said check performance on other reviewers!! 😂😂😂 Mate, you're the only guy in the world, AFAIK, presenting data as deep as you do and testing so accurately. Sadly, you're the only human being we can believe how a watch performs. If you don't test it we don't buy it.

[@watermelon3232]

Right he is the only one atleast till date

[@achillespower3095]

100% true on that "if you don't test it we don't buy it" line because he's the sole reason I bought the Band 8 version

[@davisantos3431]

Yeah, it's quite rare for someone to be the ONLY source of specific information. Most other reviews are "hey, this watch is beautiful, has a lot of functions, good battery. Buy it"

[@zanzabar7878]

Sad but true. For accuracy of health metrics, there is no one else

[@harveyscottz]

Agree! If there's a new smart watch on the market, there's only one guy i seek with the review.

[@franpicado1729]

This video is proof that you are one of the most honest people reviewing tech. Thank you ! Keep doing your excellent job!!

[@TheQuantifiedScientist]

Thanks so much!

[@ohyeahnyx]

I agree

[@Sleepy_Anime]

fr never thought someone would do so much research before presenting the video

[@kenhnsy]

Your reviews of actual performance are incredible! Unfortunately most people will not buy on accuracy and precision. But those of us who watch you really appreciate your work.

[@WesleyWu-xx1iy]

Swap the bands between left and right hands and measure again. This will help determine if the issue lies with the device or the difference between your hands.

[@SylvexDragonskin]

Left is closer to your heart, that's why good doctors measure everything on the left side as well.

[@sdqsdq6274]

hmm he must be left handed ?

[@doomcheater]

@@sdqsdq6274 He's using both devices in both hands but there's always a huge discrepancy.. the left arm + heart correlation makes sense.

[@blackkitty_42]

you're the most trustworthy smartwatch reviewer out there. i always check your reviews before buying one. i and many others really appreciate your deeply scientific review. thank you.

[@preethamsai890]

Hey Rob, can you try switching watches used on your left and right for different sessions or days. Just to make sure that the inaccuracy is not an issue with the particular device. Love your reviews, Keep them going. I am still waiting for your watch fit 3 full review.

[@TheQuantifiedScientist]

▬▬▬▬▬▬▬▬▬▬👇DISCOUNTS/AFFILIATES!👇▬▬▬▬▬▬▬▬▬▬ 🔴 Best place to get a Huawei* ;-) : geni.us/HuaweiBand9 🔴 Whoop Strap 4.0: join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership) 🔴 Eight sleep 350$/200$ (€) discount*: eight-sleep.ioym.net/TheQuantifiedScientist + add code “UNBOXTHERAPY” or “TQS” for full discount 🔴 Oura Ring Link: I recommend you search for a discount on reddit with the "Refer-A-Friend" program! If you can’t find one: ouraring.sjv.io/rQ4L33 (affiliate link that supports the channel, but doesn't have a discount) 🔴 General Amazon link*: geni.us/thequantifiedscientist ☝Amazon Affiliate* (paid) links. Supports the channel, doesn't cost you any more!☝ 🟢 Instagram: instagram.com/quantified_scientist/ 🟠 Shorts: www.youtube.com/@smartwatchshorts 🔵 Newsletter: www.robterhorst.com 🟡 Twitter: @QuantifiedRob * Affiliate (paid) links support the channel by earning me a commission on any sale, and it doesn't cost you any more! My opinions are completely my own, and this content is not sponsored. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

[@morok1952]

Thank you for the detailed data and comparisons you make on this channel, I am impressed with your collection of tested devices and the graph representation of the data!

[@luisfilipesf]

Not to diss on your work which I follow since you re the only one doing these deep and accurate analysis, but for this comparison make sense you would have to do the herculious task of testing all the other watches on your left wrist, because probably they would perform better on the left aswell, so you would have another whole term of comparison in a general scale. Keep up the great work!

[@yasskb]

Thank you Rob ! So my conclusion is that... it's expected. There are low-end and high-end watches for a reason. I feel like we will never have much better watches regarding hearth-rate performances and sleep, or at least until a very long time. But imo hearth rate accuracy is more than enough for daily usage, as well as sleep tracking which in my case help my know when I fall asleep and when I wake up.

[@MrSeedi76]

I compared the Huawei Fit 3 to my Garmin Fénix 7 Pro and there was absolutely no difference in the heart rate they detected while running.

[@silentKeys20]

Not really, if you go to the Watch Fit 3 review, it's one of the top performers, closing in to the Apple watches, and soundly beating most Garmin watches that are way more expensive. Price != quality, it really comes down to case by case basis.

[@yahiakantour4384]

Can you do a comparison between huawei band 9 and Samsung fit 3.

[@freitascjr]

Hey, buddy. Thanks for the new video. Your job is very nice! A question: do you intend to try Huawei Watch Fit 3 again? Regards from Brazil 🇧🇷

[@ciclocidade8937]

He already did it

[@LucaTake]

Ele não costuma testar o mesmo dispositivo mais de uma vez, a não ser que o dispositivo tenha apresentado problemas e ele queira verificar se alguma atualização tornou as medições melhores.

[@DavidRojas17]

Thanks for the update, Rob. This is precisely why people trust your reviews so much! Also, I've noticed that you don't do reviews of honor bands/smartwatches. Is there a particular reason? I've seen they have some very nice and cheap options but since they're no longer with Huawei I don't know if they're any good. Would be excellent having a review of some of their latest products.

[@besim109AOG]

Its a drag that after all these years, health tracking watches havent evolved at all

[@PratikDeshmukh1]

😂 true..i have wasted well around 200$ till date on this crap. Especially on Xiaomi and Amzfit

[@davidbraswell1481]

@@PratikDeshmukh1well I got you beat lol I have a Apple Watch Series 8 and an ultra 1 also a Garmin Epix Pro and a Garmin Forerunner 965

[@davidbraswell1481]

@@PratikDeshmukh1 so around 3200 us dollars

[@TheQuantifiedScientist]

Some devices are getting better, but it's a slow process over many years 🙂

[@SirRasor]

That is why Garmin is still leading in terms of health tracking with two(plus one) useful data: Stress and Body Battery (And HRV on newer watches). Everything else is just a hit or miss. But then again, I sold my ForeRunner 255 because I feel my body: why need any gadget to show you how is your health? Waste of money...

[@dimaignatenko1034]

I was really looking forward to the full episode! Thank you so much for this episode in particular and for all the work you do!🎉😮

[@fidsc1936]

Love this detailed and honest review. Bought the band 9 recently and felt guilty after your first review. Now relieved. Will keep my band on my left wrist...until I can afford an Apple watch😂😂

[@MAGAted]

surely swapping the watches over would have been worthwhile with such a large difference

[@maguillarama]

Thanks for the video Rob, would you do the same for huawei watch fit 3?

[@mananvarma5944]

Love your videos! The hard work you put into them is evident. Could you please review the CMF Watch Pro 2?

[@tubejuanso]

I'm trying to decide between band 8 and 9 for a present. Thanks for the updated video

[@DeluxeGroupie]

I went with a band 8 about a month ago and don't regret it at the slightest. Does a similar job to the newer band at a fraction of the price.

[@yasskb]

Band 9 has an ambient might sensor, which is very useful. I had Band 8 before and was forced to change brightness a lot of time.

[@mikayel18ify]

Thanks for the update! Hope you can update Huawei watch fit 3 vidéo too! ❤

[@NunyaBusiness-v2g]

Once again Rob, thank you. I'm guessing without a proper HR monitor to check the accuracy, I wouldn't know if the optimal placement should be on my right or left hand. This is an issue.

[@talega1]

Interesting finding. Bet if you measure your blood pressure in both arms different positions, there is a difference. This could change the sensing, specially in mediocre watches. For me the Samsung 6 is HORRIBLE, doesn't pick HR or SAT in either hand. Cheers and keep the good work.

[@michelhenrique88]

Which is more recommended for sleep monitoring: Huawei Band 8 or 9?

[@GetArkd]

According to the video, neither. They seem awful for sleep tracking.

[@sdqsdq6274]

lol all android watch sucks , thats i am still waiting , dont like apple or google toy watch looking

[@GreetingsEarth]

You should get Huawei band 9 Right

[@victorangelogabriel]

Do you have an educuated guess of where the Garmin Forerunner 55 would land on the graph located at 3:41 of the video?

I have Huawei band 9 for a few weeks already and I am happy with them. I have china NFC one... Wondering if there is any difference.

[@johnt.5646]

Incredible work as always! Thank you!!!! 👏👏

[@Tommygimbal]

thanks Rob, bought the watch after ur initial review, happy with the heart rate reading it gives for my outdoor running, easy to connect to Strava, love the duration of sleep time (seems quite accurate even with the wake up times), I also feel that when I wear them on my left then my right, better reading on left.

[@jeanmikhailmendiola6913]

What’s up man, how do you connected your huawei band 9 to strava?

[@Tommygimbal]

@@jeanmikhailmendiola6913 there is a guide from the strava web

[@lolerie]

What is very interesting (I have Band 8 and Band 9 that I bought today and updated) Band 9 updates faster on screen. The heart rate. Like if one says 98 it is always Band 9 first. Tried to switch hands too, same

[@michelhenrique88]

Which of the two do you recommend for sleep monitoring?

[@NiCKkkkkkkkkkkkkkkkkk]

Thanks for the detailed review. I watched both your videos. My suggestion would be to add the price into the assessment. If you're comparing a $60 device with a $600 device and the former is 10% less accurate, it's a pretty good deal for most people. A person who needs medical grade accuracy should be smart enough to know that budget devices in the market may not be the most suitable option.

[@luanahilbert3891]

Thank you!! I was between buying the Galaxy fit 3 or the Huawei Band 9 and surely the Huawei performed better, this helped me choose my first smartwatch

[@Mordotz]

Is there no chance you will review the scanwatch 2 at this point ? Really value your thoughts on all wearables the most 🙏🏽

[@Vmale-z1c]

+ 1 on this, I need a review for the scanwatch 2

[@Donald5557_]

Seriously please dude

[@chimichanga5964]

we definitely need him to revisit Withings in general. Would love to know how they perform nowadays

[@qiancarlmabulay3195]

This was the really In-depth review of smartwatch here in yt, thanks for sharing wonderful information

[@aezakmei]

At around 11:58 the graph shows that the Huawei Band 8 has a correlation of 0.74, and yet in your Huawei Band 8 video, the HuaweiBand8_1 had a correlation of 0.86 for weight lifting. How so?

[@rizwansayyed7893]

Exactly I have the same question and in band 8 video he has tested huaweiband 8_1 and huaweiband8_2, what is _1 and _2 ?

[@aezakmei]

@@rizwansayyed7893 He had 2 bands, one on his left wrist and another one on his right

[@rizwansayyed7893]

@@aezakmei so the I is the left one and 2 is the right one?

[@aezakmei]

@@rizwansayyed7893 Honestly I don't know

[@boogerschnot]

Oooh my band 6 screen is going to shits after several years. I'm in a market for a new one either the 9, the fit special edition or fit 3

[@meladsabah8744]

Same

[@aboodnaaseh1383]

Same situation, what did u choose?

[@shayla5082]

How many years did it last?

[@Arnold-mt1eh]

My friend uses a galaxy 5 pro, and his brother recently bought the Huawei 9. From their tests, they found that the Huawei 9 and 8 had similar results. I'm on a budget and really need a smartwatch for fitness. Could you please test and compare the Huawei 8 and 9 again? I trust your opinion more than my friend's. Your insights would be really helpful.

[@AkashGuptaAlbus]

Love your content brother. Thanks for your detailed and scientific reviews! ❤

[@laupii1]

this means that you have to do reviews of all devices always in both hands, after this video seems like the all tests and reviews arent accurate because it depends on where you wear the device or their batch

[@B-1771]

Thanks Rob for the hard work... God bless you Many users have complained about the accuracy of the Huawei Band 9's step counting

[@mihajustin4496]

Would it be possible to do a 3rd rewiev of it, since the move to the newHarmonyOS 4.2 update ?

[@RuzzaFakhruzzaman]

Hey there, I want to ask something. How do you get the data from the band? Using API or some kind? what kind of programming language did you use? Thanks a lot!

[@qmr0n]

Wow! Thank you so much for this video! The graphs were so helpful! Now I know to aim for other watches. The fitbit inspire 2 seems to be the one closest to my price range lol

[@pzboyz72]

Using a Band 8 at the moment for swim tracking in a lap pool and its pretty good, with everything turned on except AOD, and 5 hrs swimming per week, still getting 7 days battery life.

[@wottle1]

Would love to see tests for smart rings. There are a ton other than Oura. Samsung even has one coming out next week.

[@playpower7632]

Is it the same for the Huawei watch fit 3?

[@Tony_Jesher_07]

Thank You for the review 🙂. But if you asked me a suggestion on how Huawei will be able to make their Smartwatch highly accurate is if they will collaborate with companies who makes medical grade devices.

[@stevesathit]

What I love about fitbit is that they track overall calorie consumption during the day ,my question is what watches can do the same and which one have the most accurate data ?this might be another interesting session on your video

[@johnfadds6089]

Tracking calories is dated and proven useless.

[@farlangmail9531]

Have you or any other user test their step tracker? Whenever I woke up, my tracker never been zero. Mine always count around 20-80 steps during sleeps, and I'm pretty sure I didn't sleep walk. It's also mess up the step count during driving or commuting.

[@hussamaboukuffah9078]

Waiting for mi band 9 review. Believe me that my purchase decision is depending on your video

[@wolfmode69]

Apparently it looks worse

[@user-ij8no5zw6u-]

Hi Rob, my own testing also differs from yours and also left-right hand gives a different results. For example Garmin watches works better for me than Huawei in terms of HR accuracy....that is the opposite of what you experience with them and I really don't know what to make of that...

[@RaoBlackWellizedArman]

Very interesting video as always... and a video that spaked an idea in my mind. If we accept that the error on the two watches on two arms are independent (rough assumption), then averaging the resutl will decrease the error RMS (ideally by a factor of 1/sqrt(2)). But the reall question is does the Huwawei Fit App support this? I mean, can it simultaneously connect to two watches (or two devices in general) and average the results? If so, this might be a very good way to incease our devices accuracy and reliability... expecially when upgrading, we may keep the older one and wear them both in particular exercise sessions (such as interval sessions) for increased accuracy.

[@mourikogoro9709]

"......simultaneously connect to two watches (or two devices in general) and average the results....." Good idea MAN!!

[@gergelymate1977]

How about "racing" two Apple Watch SEs against each other on your left and right hand?

[@TheVespart]

This is pretty good!! I keep thinking about the Oneplus Watch 2, given how good it's battery is, and the interesting approach they have taken with the dual chip for the performance, I hope you will gain interest in trying it out and testing it out!! It seems a pretty good product!

[@cbrbakul6296]

What about fitbit inspire HR ? Is it good for sleep tracking? That's the only fitbit within my budget

[@voodooparadox2513]

Please review the Muse S. we’ve seen all these wrist worn devices. Please do an EEG device.

[@Aslanreviewstech]

Great review as always, could you maybe do some of the new amazfits? Balance maybe?

[@23xboxman]

Hello Sorry but I've been watching a few (now recent) videos for a heart rate tracker and make sure which ones are more accurate If you don't mind can you please tell me a watch or appliance that is a better heart rate tracker My fitbit versa 2 seems to have a mind of its own

[@joshshook4940]

Love your videos. Thank you. I have a big question I suffer from afib and I want a good watch to help monitor it.

[@audic2350]

And how about Huawei's watches for GPS accuracy and number of steps + calories? I'm planning to get a Huawei watch, probably the Huawei Band 9 or the Huawei Watch Fit 3.

[@vertronicle3908]

Rob, please be wary of the power you hold. You are the only one doing what you are doing so your voice really has weight. Other reviewers dont matter almost hahaha

[@gedikoglu61]

Hi. Thank you for these reliable videos. As i checked out you didn't share any video about Huawei GT3 SE. Is it because it has the same measuring parts with GT3?

[@neerzays6771]

I just found this channel. Very helpfull. My shitty Fitbit Charge 5 just suudenly does not work anymore. And thats already a warranty replacement for the one i bought, which also dead suudenly

[@chriscooper7576]

I can’t understand your sleep test table :( 13:31

[@64GBdeRAM]

The middle diagonal values needs to be closer to 100%

[@guilhermeg345]

Can you review Honor Watch 4 ? Do you think it's using the same sensors as the Watch fit 3 ?

[@JayaLove]

Did you ever switch wrists to see if it was consistent even when you swapped watches?

[@emmageorgiaphotos]

How does this compare to the Galaxy Fit3? Which would you choose? 🙈

[@antoniokj]

So, which one has a more accurate detection of the heart rate? Huawe Band 8 or 9?

[@ABD5667]

I'm currently looking at Huawei band 8 or 9. I currently have a band 3pro and thinking about changing

[@lokeshacm]

Thanks for your hard work. Hope you are doing good in life.

Maybe you already answered in a previous video or in a comment but do you measure how tight you thighten the watches ? It would be a little unfair to loosen the bracelet a bit for one of the watches that you are testing. Thank you for your videos, you helped me buy the Amazfit Balance after my Huawei watch 3 pro stopped working for no reason and I realized the absence of GPS on the Band 8 was a problem to me.

[@Rumata_E.]

Hello. Thanks for the informative review. Could you test Honor Band 9?

[@nachovalde]

Impressive analisys, thank you very much for sharing all this information!!

[@mehutolkki3232]

When are you doing Withings scanwatch nova & scanwatch 2 tests?

[@jemnas9830]

Can you please kindly recommend what is the best oxygen monitor watch? Please need for health reason.

[@gogotomago122]

He has videos for best smartwatches in each category, just look it up

[@passionseeker28]

need some advice. I have 4 unopened Huawei Band 8 boxes, but I haven't used them for personal use because the Huawei Band 9 has launched. I initially wanted to buy the Huawei Band 9 for myself, but after watching a video, I'm now confused. Should I buy the Huawei Band 9 or use the Huawei Band 8 that I already have? Please advise

[@zavian2063]

Keep the band 8. And give me one of them if you can...

[@s1xto]

im torn between this and Xiaomi Smart Band 8 Pro, cuz its around what i can afford, which one would you recommend for light exercise, sleep and HR tracking?

[@joswahaha]

thanks for the update! I'm convinced to buy this instead of Haylou RS5 and Mi band 8

[@kluangh1tam]

Device on the left wrist gave more accurate reading because it was closer to the heart, based on my observation.

[@RadimSafran]

Are you planning review for Ultra Human Ring Air?

[@yyyeen___8041]

Is it accurate with the number of steps both running and walking as well as no. of kms you run?

[@m1ch4Lko]

Great videos! Any chance you could test the Suunto Ocean? Greetings from Vienna :)

[@varunaeeriyaulla]

Well, I bought Galaxy fit 3 after watching your other video. I didn't know the hands make such a difference. The issue with the Huawei Band 8 is it doesn't have a light ambient sensor. That's why I didn't go with it 😐

[@iTooob]

Even though sleep tracking was far from decent, would you say this is the best budget choice right now?

[@ardianezranugraha2098]

Hello, just curious what data should i used for walking at treadmill, i need to check that my heart zone at level 2. Should i use cycling indoor or running data?

[@Bumiround]

Walking should be similar as his jogging test

[@JV6276]

Your reviews are very helpful, thank you for that. Could you please do a review on Suunto watches?

[@owow8899]

Could you tell what watch around 200/250€ is the best overall ? And for sports ?

[@imajrinalsi]

Have you reviewed Xiaomi Smart Band 8 Pro?

[@LandyMoon13]

Please do the Xiaomi Band 9!! 😅

[@DaniilDimitrov]

😭😭😭😭

[@mdnasiruddin4926]

please say How many watt charger should I charge it with?

[@MohsenooKh]

Could you please review Suunto Race S? 🤩

[@ScorpioGRG]

Thank you for your research! I can suppose that because of left and right hands have a bit different thickness and you was using band with silicone strap - here is the reason of the difference. I also suppose that if you was using bands with nylon straps you would obtain more close results for right and left hand. I also think it explains why in a second session you get closer result - hands swell during exercises. I also noticed in you review that huawei watch fit3 you showed had a nylon strap, but as for manufacturer specs they both (band 9 and fit 3) has the same sensors which again makes me think that nylon strap and it accuracy to fit tight - is the case.

[@Levince36]

Thank you very much for your research, you help me on my decision.

[@MrMastadox]

It is awesome that you do these tests. And i enjoy the videos. But, these are not enough to make a good decision. There seems to be a huge problem with these trackers. And they are not being addressed in this video. But a whole lot of people experience overheating issues with the huawei band 9 when they actually go outside and use it! And if i hadn't read the reviews on Amazon, i would have already bought one and regretted it. A fitness tracker should not overheat because someone is doing sports outside. It renders the whole tracker completely useless. Even if it had the most accurate sensors in the world. It would make it a complete waste of money.. So i would suggest you actually add some tests to your routine so you could in fact be the go to place to find a smartwatch or fitness tracker.

[@frkvld]

In every video there is praise and advertising of the Oura ring, it seems like that you get a percentage from them for subscription payments

[@imajrinalsi]

Have you reviewed the HUAWEI WATCH FIT Special Edition?

[@MondSemmel]

I always appreciate your tests & reviews.

[@Chris85ian]

Please switch the watches from left to right to get deeper insights. If the effect of random deviations outscales performance differebces between smart watches the whole testing setup would be questionable.

[@ZubaCnst]

One question I hope you answer, if I put my Huawei band 8 on my left wrist will it also be more accurate? And greetings from Spain

[@lolerie]

I mean, apple watch has a switch that tells which wrist you wear it on...

[@stevesanchez1048]

I recently got my Band 9. I love its comfort, but I am having an issue with the software? I noticed that when I do other workouts like Strength training, for example, and I initiate it on the band, it tracks the workout... but it doesnt count that workout as data in which to close the activity ring. However, if I iniate a run or a walk or a cycle ON THE PHONE app, it then counts THOSE workouts towards closing my rings. Am I doing it wrong? Is it a user error?