Apple Watch Series 8 : Full Scientific Review

[@TheQuantifiedScientist]

🔴 General Amazon link*: geni.us/thequantifiedscientist 🟢 Instagram: instagram.com/quantified_scientist/ 🟠 Shorts: studio.kzbin.info/door/cpARGzXNaC62UQWns2dh2Q 🔵 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. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 👇 $30 off any new WHOOP membership, affiliate* (paid) link, supports the channel!👇 join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership)

[@ruicabral1]

Thank you for the reviews !! Did you ever considered reviewing the accuracy of the the intelligent scales around in the market ? I have a Huawei Scale 3 Pro and would like to know how exact she is. There is no good reviews around....

[@vigneshpadmanabhan]

Can you also do one for Apple Watch Series 4? Wanna know if it’s still accurate enough.

[@smeshnojnik]

Your reviews are the best! Are you planning to do a review of the Fitbit Inspire 3 or the Amazfit Band 7 some time soon?

[@SimonMezgec]

As a fellow scientist, I can't tell you how much I appreciate your methodology, proper data gathering and well-explained analysis! Extremely well done, you're by far the best reviewer of such products I've come across - keep up the great work!

[@TheQuantifiedScientist]

Wow, thanks so much Simon! This is really appreciated!😊

[@SimonMezgec]

@@TheQuantifiedScientist I actually ended up buying the Apple Watch 8 after watching this review and I am very satisfied with it! The sensors are performing really well for me, just like in the review, so in terms of review usefulness, I don’t think it gets any better than this. Thanks again for the excellent analysis! :)

[@Actor037]

Someone give this man a medal already, YOU ARE THE BEST SMARTWATCH REVIEWER OUT THERE . Period. Kindly please consider testing Amazfit GTR 4 , We Indians are waiting as it is the only cheapest reliable smartwatch brand in India 🇮🇳 👻

[@TheQuantifiedScientist]

Thanks so much Leo! I will see when I get the chance to test it 😊

[@jamesd5767]

Surely it's better to use your money on rent and basic survival if your living in India. Why waste money on a watch you can't afford ?

[@Actor037]

You are Welcome Scientist ♥️

[@goranmaros3085]

And biggest apple fun.

[@thetechiedoc]

❤

[@stefan5414]

I said it a few times and i am going to say it again. This channel will blow up even more than it is already! Nobody can match this quality of content in regards to smartwatches. No bs, straight to the point and amazing data! Especially considering that these smartwatches are straight up lying and intransparent in regards to their effectiveness Keep going!

[@BobbyBarrigan]

My mother had open heart surgery last month so taking accurate heart rate measurements is a big concern. I was wondering what watch to get her, and after your last video on the Apple Watch series 8 I went out and got her one that same day. Really appreciate there’s somebody out here looking at the science of these watches. Keep up the great work

[@TheQuantifiedScientist]

Thanks Bobby! 😊

[@bawbsmith]

@@light_splitter Yikes, calm down. The OP didn’t indicate in any way that they’ll be relying solely on the Apple Watch to measure their mother’s vitals. Depends on the procedure, but most open heart surgery post op regimen only include checking your pulse at home and coming in for checkups. Very rarely will a doctor suggest a “specialized medical measuring device”, and if they did, then again an Apple Watch can be a great complementary device, especially when getting in some light activity outside without access to the “specialized medical measuring device”. I would advise you to see a doctor, as I believe there’s a stick so far up your ass that you’re having personality issues. Worst case, I’m sure those plastic bag warnings are just a formality; you should try playing astronauts with them.

[@krollpeter]

@@light_splitter I expect that the doctors had advised the family, if the mum needed professional level heart monitoring.

[@user9b2]

@@krollpeter that was the correct answer. What @Cosmin said was not relevant as he has no idea of the actual situation of the mother.

[@user9b2]

@@light_splitter I think your comment was moronic as you have no idea of her actual status.

[@blushandsky]

I’m informing myself right now before buying my first Apple Watch and honestly - your reviews are exactly what I was looking for. Comprehensive, detailed yet clear, thorough. I appreciate a lot the work that went into testing and data analysis. Thank you, Rob! 👍🏻 Amazing work!

[@ukestudio3002]

And your purchase will be .?

[@helenarii]

Did you get one? I'm thinking about getting Apple Watch 7 or 8. The temperature sensor would be nice, but since it doesn't affect sleep that much (I thought it would, but maybe not then -- though I think there might be an update coming at some point where they combine those two algorithms...), maybe I don't need it. Though sleep accuracy seems to be quite much better in 8 than series 7, but it was just two nights worth of data.

[@blushandsky]

Honestly guys I‘m waiting for November sales and I will decide then depending on the price. For me it‘s between Series 7 Nike in black or Series 8 in black 😊

[@jazzcat9363]

@@helenarii I've been having the same decision issue but after watching two of this guy's videos, it seems that financially it makes more sense to go with the cheaper series 7 since there really isn't that much difference. I currently have a Fitbit sense and I rarely open the temperature data so having a temperature reader would be pretty pointless for me. And since I have the 14 Pro Max, I don't need the crash detection the series 8 offers since my phone already has that feature. And I saw his video on the sleep study with the series 7 and it was already listed as being better than my Fitbit so even if the 8 does turn out to be a little better than the 7, at least the 7 is better than my current Fitbit.

[@helenarii]

Update: personally got Apple Watch series 7!

[@ryangunniers2475]

Incredible content… Fact checking big corporation claims are so important!! I appreciated your process and how you explained how you went about your research! One day it would be interesting to introduce other ‘test subjects’ to see how these watches works on different size wrists (more or less fat and muscle) Don’t be afraid to dip into the nitty gritty details of coding and more so that way we get a better idea of your process and see what you are passionate about. Thanks again!

[@TheQuantifiedScientist]

Hi Ryan! You are completely right! This would be my aim in the future, to have a group of people helping me test these watches (I just need to earn more money to be able to do that, and pay for the watches and the people helping) 😊

[@ryangunniers2475]

@@TheQuantifiedScientist Of course!! These things take time but excited to see where you take this channel!

[@arvind31459]

@@TheQuantifiedScientist Though your experimental methods are good but not conclusive enough. In scientific studies usually there are lot of human subjects somewhere in the range of few hundreds to thousands. With a single subject you just can't convince scientific community. Hopefully you earn a lot of money and test the claims of companies and publish your research work.

[@ryangunniers2475]

@@arvind31459 Agreed, but you gotta understand this is just one person running a personal KZbin channel. That will take time and money that the account owner may not have at the moment.

[@arvind31459]

@@ryangunniers2475 Yes he deserves more.

[@LordDarthNintendoe]

No shouting and extreme just simple and calm content, love it, keep up the good work

[@jayhuda7524]

I dont usually comment but this is something else. The amount of data you have on all these watches is exactly what I needed as a science student. Thanks so so much, you've earned a subsciber!

[@geofferychang8713]

Long time Fitbit supporter here, I started to look into Apple watch when I had a heart problem few weeks ago and during an EKG check, my doc recommended Apple watch for me to monitor my heat, and that's why I absolutely love your review! The comparison with Fitbit and Polar, this convinced me to say goodbye to my money and get a series 8. Thank you for your great works!

[@XimenezJr]

After watched many of your videos. 1. You are an underrated youtuber. 2. Your channel is One of a kind. No one make useful scientific reviews like you do. 3. I’m subbed.😂

[@TheQuantifiedScientist]

Thanks so much! Really appreciated 😊

[@Mr.Riffian]

The review we all were waiting for 👍🏻

[@TheQuantifiedScientist]

Happy to oblige!

[@yesiamsharon]

The only true evaluation channel I've seen. Thank you so much for the effort.

[@TheQuantifiedScientist]

You're very welcome Sharon! 😊

[@YukalayleeGames]

Aside from all the usual goodness, very grateful for the definitive informed opinion on the temp sensor in particular. Literally not answered anywhere else on the internet...

[@TheQuantifiedScientist]

Thanks Yuka! I wonder if we will get access to the detailed data at some point😊

[@3.14name]

I m not a scientist. But I can see for sure the amount of hard work that goes in just one video like this.

[@bigdonger6949]

Bro like wtf you are THE BEST at this by BILLION MILES ahead of other channels, plz youtube give this guy more credit. Ps: bro keep up this work, i know it’s so hard but believe me you one a million, just be patient the 1M subs and above will eventually come

[@tpmit]

I love your reviews. I am fed up with some reviewers that only regurgitate specs. I am interested in the Sense 2 and how it compares to the Apple watch 8 (it is expensive to switch ecosystems). When are you going to review the Fitbit sense 2 (shortly after the release next week?) Do you think it is worth waiting for it as compared to the Fitbit charge 5?

[@gz625]

I'm switching to apple because of apple watches. You need to pay once for good phone and watches and they will work good for the next 3-5 years. While android garbage will require changing every 1-2 years. I have Samsung s20 it's 2 years old and it's already hard to use it - it's heating up, loosing wifi and cellular signals and lagging A LOT!

[@sanket.hande9]

@@gz625 true. I’m still using my iPhone 6s (though it’s performance has been degraded)

[@TheQuantifiedScientist]

Thanks so much! I ordered one, but I am not sure when I will get it. Hopefully soon😊

[@chinyoongtat9247]

You need Fitbit premium to get the most out of the watch. Unless you need more battery life, better to buy Apple watch instead.

[@cowswirl]

@@sanket.hande9 what do you mean that your iphone 6s's performance is degraded?

[@mcm111able]

Ich verfolge Dich ja schon lange. Danke nochmal insbesondere jetzt auch hier für die umfangreichen Tests. Super das Du auch GPS und Sauerstoff drinnen hast!

[@TheQuantifiedScientist]

Gerne!😊

[@deanwinchester7723]

He is the KZbinr one need to watch before making any decision which watch to buy..... He is the best from the rest....

[@suhhhy9701]

Hi Rob, Could you please test the HRV (Heart Rate Variability) of the most popular models out there? Would be suoer interesting to see if they are any good, since this metric is way more actionable for most of the people than let's say SPO2. Thanks!

[@Zane_Zaminsky]

@@MPD90 Mike, HRV is measured on the Garmin Fenix 7, Oura Ring, and many other watches. I get my HRV readings on a daily basis from both the Fenix and Oura Ring. The heartbeat is not like a metronome. Variability is normal.

[@Dev-Austin]

Phenomenal, in depth and concise as always. I had to send this video to my brother as we're both in the market for a new smart watch. I can't wait to see your review of the S8 Ultra. Great work!

[@TheQuantifiedScientist]

Thanks so much Devon, and thanks for sharing it! Hope you have a great day! 😊

[@Dev-Austin]

@@TheQuantifiedScientist Same to you :)

[@ajjono]

@@TheQuantifiedScientist Such important, REAL data in this video. Thank you so much. The ultra is is my first ever smart watch. Really looking forward to how it compares. Perhaps some variation in how it tracks in some sports due to the extra weight? I'll keep an eye out for your review that's for sure

[@Darthus]

Curious to see how this compares to the Fitbit Sense 2 consider they offer a similar set of sensors at a lower price.

[@gabrielhayon3020]

The amount of effort you put on your videos is amazing! Such a good scientific testing on the technology you test, so much appreciated! On a side note, would love to see you test the Fitbit Sense 2 and compare its performance against all the other watches you tested. Keep up the amazing work!

[@highlanderes]

Awesome. Having used AW forever, it is missing important metrics for other than runners. I recently changed to Garmin FR955 for recovery, readiness and body battery. Even more important when over 40.

[@juanjaviercoka7406]

there are actually quite a few apps for Apple Watch that do that. I agree that watchOS 9 did a lot of things Apple Watch should have been able to do before but its definitely getting there. I am excited to tried the ULTRA

[@geirolz]

I'm a drummer, I've noticed with some smartwatches the fake steps problem playing the drum, this could be a great test to add for your False Steps test 👍🥁

[@TheQuantifiedScientist]

Hi David! Yeah, that makes sense! Thanks 😊!

[@youngsahm03]

Incredible work! So grateful for all of your effort and expertise. The main issue with the Apple Watches seems to be impractical battery life.

[@KyleKunze]

You should really submit feedback for apple. They have been known to fix this stuff quickly if it is highlight. About the XML data export errors.

[@TheQuantifiedScientist]

Hi Kyle! Yeah, at first I thought it was just in the beta version, but I have the same problem on two iPhones now with the final iOS

[@L7CK7]

Thanks for these thorough tests that have general appeal. Too many Apple Watch reviews have been just touch and go, and the more analytics based ones like DC Rainmaker target a much more active user niche (than the likes of me).

[@TheQuantifiedScientist]

Thanks Lucky! Ray indeed also makes amazing videos 😊

[@prasadmadushan]

Bought new apple watch 8 today and this video is the main factor for that purchase. No one can find any comparison like this. Simply you are amazing.

[@Erdie5]

I am shocked how accurate the top 5-10 watches are with their measurements considering they're being taken on a wrist. The Apple Watch's heart rate accuracy is nothing short of incredible. Wow.

[@nehalahmedranak8185]

Very appreciating! I have seen no other smartwatch reviewer making such detailed videos. Please keep it up!

[@francobellomo9979]

Excellent! I can wait for the 8 ULTRA!

[@TheQuantifiedScientist]

You and me both Franco! 😊

[@richie007brown]

Am more excited about the watch ultra than my 14 pro max

[@francobellomo9979]

@@richie007brown hahaha

[@rankostojkov9698]

Respekt für den Aufwand den du da betreibst. Mit Abstand einer der Besten Berichte !

[@good_mourning]

Just received my series 8 two weeks ago, but was sort of skeptical of it’s, or any other smart watchs’, ability to track certain health metrics accurately. So, I hit up KZbin to see if anyone put it to the test, and came across your videos. First, I’m pleased that Apple Watches performed consistently well when it comes to accurate measurements in all categories, tho performed better in some categories and slightly less accurate in others. Still, it overall performed really well, especially when compared to many other smart watches, Apple showed to be the most accurate. Second, I’m now a subscriber. Your videos are exactly what I was hoping to find on the subject. I wanted data, and a focus on what it tells us, rather than what I usually come across which is either pro one company or anti other companies without really testing them to find out which company performs the best and provides the most accurate data. I appreciate the effort you put into testing these watches and other wearables. Can’t wait to see what else you upload.

[@MrAndzzeys]

Im not into your channel but I surely appreciate the effort you are putting in these tests.

[@AndyGergen]

This is, by far, the best video I've seen on tech reviews.

[@WalidErnesto]

Excellent work ! The only channel where we can find a very high quality of content ! Thank you. Greetings from Tunisia 🇹🇳

[@victorpineda7519]

Thank you for doing these tests. This helps me lot on my purchase decision.

[@TheQuantifiedScientist]

Glad I could help Victor! 😊

[@vikramsarabhai1]

Love how thorough you are!

[@TheQuantifiedScientist]

Thanks so much Vikram!😊

[@calebthomas5411]

love the review man I went from the series 3 to the 8 man what a different just being able to read things better and easier to touch on the apps and the quickiest compare to the 3! the fact that apple has a wheelchair thing and it tells me when to roll if I'm just sitting too long is just amazing I don' think there's any other watch with that I know of amazing!

[@krollpeter]

I'm not a fan of the Apply circus, but this is a very respectable result. Well done for that one, Apple! I would expect that all watches at these prices levels are as accurate, but it's really not the case.

[@chasti5754]

As a scientist myself, your review gives me a satisfaction I didn’t know I needed

[@selwynbegata8477]

Nothing can beat this reviewer using data analytics. Keep it up. Your review is really helpful. Thank you!!!

[@john-wiggains]

You’re like MaxTech, but for Smartwatches. You’re crushing it my dude. I’m commenting for the algorithm here.

[@NNSokol]

Great job. Solid analysis. Also thanks for sharing how you export the data.

[@TheQuantifiedScientist]

My pleasure!😊

[@jagnoorsingh9713]

Brother Hats Off to your hard work and your commitment to your work. This is not a normal review of a tech gadget, you got into each and every minute detail and explained it like a pro. God bless you

[@andreaidnob]

This is how we should approach more things in life. Wonder, test, gather data, analyze, conclude and wonder some more. Bravo!

[@Pedmond]

Thank you. Outstanding work and presentation!

[@TheQuantifiedScientist]

Glad you liked it Pedmond!😊

[@GadgetyMV]

Rob, fab as always, my go to for any serious performance reviewing. As for the product, Apple showing Samsung how it's done. Looking forward to the Apple Watch Ultra testing.

[@TheQuantifiedScientist]

Thanks! Yeah, me too! Super excited about the Ultra!😊

[@ActuallyJamesS]

Awesome, thanks for the video. Really good to know the SE holds up so well as this is the one I’m going for as my first Apple Watch. Looking forward to the video on it.

[@TheQuantifiedScientist]

Glad I could help! I still need to edit it, but it is already recorded 😊

[@nickfelstead7559]

Thanks for ur hard work, just got my apple watch series 8 yesterday!

[@DominikNajberg]

Nobody does it better. Thank you for your review.

[@TheQuantifiedScientist]

Thanks for watching!😊

[@RohanAcharya16]

Hey Rob, been following your videos for a really long time and thanks a lot for these amazing videos from time to time giving insight into the Quantifiable measurements of the watches ! I've a bunch of requests & will be really glad if you consider answering them, 1. If the Apple Watch SE is as good as the Apple Watch Series 8, which one should we consider buying , since there's a significant price difference between the two ? 2. A continuation to the previous question can you please look into the ECG accuracy of these watches ? ( Not for medical diagnosis of course ) Just to get an overview if the ECG functionalities are worth paying the extra bucks ! 3. Is it possible for you to get your hands on a Fitbit Sense 2 or a Fitbit Versa 4 ? Asking for non-Apple users as buying an iPhone just for the watch isn't that budget friendly. Eagerly waiting for your reviews on the new line of Fitbit Watches/Trackers. I hope you get the time to read my comment & answer my questions. Anyway, thanks a lot again for such wonderful videos. Lots of love ! Just realised, sorry for such a long comment , it just shows our expectations from you :)

[@venkate5hgunda]

Would it be possible that these improvements are transferable to the older watches like Watch 6 & 7 via the software updates? Apple themselves usually highlights if their physical hardware has improved, and is specific to Watch 8.

[@n123896]

I was recently told that the Apple Watch was not accurate for Calorie counting. Maybe that is a something you can test. Great review!

[@ekingorgu]

Hey, really good video just like the previous ones! One issue I see is, only 2 days for sleep stage tracking is not enough for a scientific review of this caliber. I think you should continue testing the sleep tracking feature of Apple Watch 8 and make a scientific sleep tracking test video in the future.

[@aaronburns7477]

Seeing as how the Apple Watches are pretty much using the same sensors I bet he ends up doing a sleep study test to compare it. Maybe once the Apple Watch ultra comes out.🤞

[@nicoleskey]

I just got the Series 8 after upgrading from the 4 and I've been wondering how good the heart tracking is considering I have a heart condition POTS so I really appreciate this video! Excited to see how accurate the Series 8 is!💗 Can't wait until it can track blood pressure too

[@galileo3431]

This is great! Will you do sleep stage tracking over more days? Would be very interesting to know if the "error" of the Series 8 comes from the low sample number of two days 🤔

[@TheQuantifiedScientist]

Indeed! I should do this at some point😊, great suggestion!

[@Caelus1]

Maybe you could measure and compare sleep stages by sleeping with using both the series 7 and series 8 at each wrist and then plotting the difference

[@ansisgrinbergs]

This guy makes all other smartwatch reviewers redundant.

[@plaks215]

Flawless review 👏👏, very detailed as always, do you think you'll get your hands on the Amazfit gtr 4 anytime soon? I'd love to see if they improved at all with the "new" Biotracker 4.0 compared to the last gen. Subscribed

[@derksenjenny]

Thanks for this scientific in-depth review, I bought the series 8. And was anticipating for your review on it !

[@TheQuantifiedScientist]

Thanks Jenny! Hope you are enjoying it 😊

[@trumptman]

Great review. You get so deep into the stats compared to many other reviewers. For the Apple Watch specifically I suspect you'd have a lot of views for any video that tried to show maximum GPS recording time. Lots of people will be trying to decide between the SE, 8 and Ultra and the big claim to fame there is GPS recording time. Whether you do an activity of that length or not, no one seems to spend much time on the amount the GPS drains per hour or overall to really prove claims of GPS life.

[@TheQuantifiedScientist]

Thanks for the great suggestion Nick!😊

[@nazukeoya]

I'd be curious to see your testing of the Apple Watch Ultra's dual-band GPS that the Apple Watch 8 doesn't have. Will you be testing this?

[@peakproofuk]

Love the detail in these tests. Keep it up, it's really appreciated.

[@paolovaralda6797]

Can Apple Watch 8 detect naps also?

[@aldwinleeestopia]

The way you do your data gathering and presentation is amazing!!!

[@adisaksukul8088]

Great content! Is it possible to test the accuracy of the ECG reading as well?

[@NirHason]

Great video! I think that it will be awesome if you will create like a public spreadsheet for all smartwatches and their score for each category.

[@TheQuantifiedScientist]

Hi Nir! Yeah, I will consider that, thanks!😊

[@cowswirl]

great suggestion. He won't get any youtube views (=money) but it will be a great service

[@JayGreezy]

man.....this dude REALLY meant scientific review when he said it

[@williamstevenson2649]

As usual, the definitive accuracy review of any particular watch!

[@floxshuilee1760]

The Ultra is coming! Waiting for your review

[@TheQuantifiedScientist]

Hi! As soon as I get my hands on one (unfortunately I did not get early access to any Apple product) 😊

[@bleach1402]

You are really underrated You deserve more subs

[@fVNzO]

I was literally just looking for this video and see if sleep stage tracking was improved at all. Very nice.

[@TheQuantifiedScientist]

Great to hear! 😊

[@ajk8720]

Lol me too. I never thought about buying an Apple Watch. But I wanted to track my sleep. Somehow this is better then Oura and have much more other features.

[@emon_12]

@@ajk8720 a

[@fVNzO]

@@ajk8720 Looks like all the S6/7/8 equipped apple watches have identical sleep tracking. Maybe the temperature sensor will be able to improve it down the line but i doubt it. Wondering which one i should go for, series 7 or 8.

[@elizabethbishop7869]

this is literally the best review I’ve ever watched wow thank you!!!

[@Mark-fs7ok]

Another great review! Thanks. I have a small suggestion you might want to try: Place the second, sideview camera a little farther away from you.

[@TheQuantifiedScientist]

Hi Mark! I wish I could, I noticed the same. Unfortunately it is already more or less up against the wall 😊

[@Izya001]

Dear Rob! Thank you very much for such a detailed report.

[@jesuslovesu4714]

Been waiting for this review! Thank you so much for what you do!

[@mcarlbanag]

I just came across your channel and I salute you for all the test that you have done. 👏🏻 I just wanna know if heart rate variability of series 8 is also accurate

[@LifehackerAsh]

This must have taken so many days of effort. Awesome content. Thank you for this!

[@rohant]

I was waiting for this with an Apple Watch in the shopping cart! Now because of your scientific review, I will finally click next to the payment gateway.

[@TheQuantifiedScientist]

Hi Rohan! Happy to help 😊

[@saltydog996]

This is exactly the review I’m looking for. Thank you, thank you and thank you.

[@Kashewnutzzz]

Could you please do an experiment on wearing the Apple Watch on your ankle? Is the heart rate still accurate? Would love to wear the sensors all day but I prefer to wear a mechanical watch

[@Jammanboe]

First video of yours that i watched, and you got an instant sub, and I rarely ever do that. Props to you for such an amazing job, as a fellow statistician. Keep it up!!!

[@BrandonSchmit]

Per the SPO2 measurements, if I have my watch on comfortably, it gives me a 95% saturation, if I make it one "hole" tighter on the band, it gives me 100%. I think the wrist band tightness is contributing to the high variation in your readings? There might be slight differences in your right/left wrists which contribute to variation you recorded? Awesome video!

[@neo00C]

Your Scientific Review help me a lot! Thank you!!

[@bpblog]

Are these improvements related to new hardware or the OS? Can we expect similar performance from Series 7 with the updated OS?

[@navidmahmood876]

This man’s review is more thorough than my masters thesis

[@88skewer]

thank you for your extensive tests and plots

[@benjaminjako]

Hello! I never write any comments on videos, but I have never seen a video about the accuracy of the apple watchs calorie tracking. Please consider making a video about this, as many weightlifters/bodybuilders (me included) view this as a really great underappreciated feature!

[@IlhamMaulana-mx6qn]

Hi Rob, amazing video as always, since you are the best smartwatch scientific reviewer. Could you measure the accuracy of VO2max of apple watches please?

[@abhi_gabani]

Best reviewer ! Love your content bro! Keep it up

[@Alanvictoryoung]

Excellent content. I am disappointed that Apple does not include the Blood Oxygen Saturation during sleep! I am a Dentist and I am very keen on looking for evidence for sleep apnea, a condition that can have significant impact on my patient’s oral health. While I do refer my patients to get tested officially, I wished Apple had worked on their algorithm for sleep apnea by now. I suspect the wristband tightness and perhaps arm posture and wrist placement may be resulting in low measured values at the position of the sensor. I am keeping my fingers crossed for Apple to work out what is needed for accurate analysis in the future.

[@clynn4802]

I’m in agreement with you. Was hoping that could help detect sleep apnea. Fingers crossed that’s next.

[@NameLess-lk2qu]

Nice another one! But I am eyeing for the Budget SE 2

[@TheQuantifiedScientist]

Hi! That one seems quite good as well, video coming soon! 😊

[@NameLess-lk2qu]

@@TheQuantifiedScientist Im sharing your vlogs too in reddit, thanks a lot for the help

[@taheromar]

Am so glad am subscribing to your channel man.. seriously quality content! Keep it up.

[@TheQuantifiedScientist]

Welcome aboard Taher!

[@dainjahrus]

As someone who has been looking for a great sleep tracker and fitness watch, this has been a perfect channel for me. I ended up buying a apple watch s7. Thanks for all your hard work!

[@BigTechEngineer]

Would it be possible to have you do a comparison between the last 4-5 generations of Apple Watches? I think that would be a great indicator for people who are considering upgrading to a newer generation but not sure if it’s worth the upgrade cost. Thanks!

[@janboutenjr.2089]

Hoi Rob. Great review! Was wondering if you think the different bands available make a difference? How tight do you wear the watch? What is your preferred band?

[@trebbianopapa8595]

Awesomeee review man!!

[@ivant383]

A nitty-gritty review; im lovin' it!