Whoop Strap 4.0: Long-term Scientific Review (7 months!)

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Күн бұрын

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Timestamps:
00:00 Background
01:47 Whoop Strap 4.0 Features
04:22 Heart Rate Test Spinning
08:47 Heart Rate Test Cycling
11:20 Heart Rate Test Weight Lifting
14:11 Heart Rate Test Other Workouts
15:02 Sleep Stage Testing
20:10 Sleep Stage Test Overview
21:44 Body/Skin Temperature Test
24:16 Other Good and Bad Features
25:11 Health Tracking Conclusions
Intro: The Whoop strap as a device mostly focuses on health tracking, and not so much on smartwatch features. This also means it has no screen or any interface at all on the device itself, and it is mostly designed as a health monitoring device. The Whoop Strap keeps track of your health in several ways: it can measure your heart rate, skin temperature, breathing rate, oxygen saturation and heart rate variability. Your heart rate will be measured throughout the day and night, and if you start a sports activity, the frequency of measurements will go up, and the app will show a graph of your heart rate after the workout. What I believe is potentially even more important, is that throughout the night it will measure your resting heart rate, respiratory rate, heart rate variability, skin temperature and blood oxygen levels. Measuring this during the night is one of the optimal times to measure these metrics, and the app will show you if there were any deviations from your normal range, which could indicate there are some health issues. An increased skin temperature could for instance indicate that you are suffering from an infection such as COVID-19 or the flu, and a high resting heart rate could be an indicator of poor recovery. One of the benefits of the Whoop Strap is that you can wear it in many different locations, and I personally prefer to wear it on my biceps, which is also what most of the test results in this video will be based on. However, Whoop offers many more options of where to wear the device itself, and the device should be able to work out where it is located automatically. You can for instance wear the whoop strap 4.0 in your boxers, thong or in a compression top. The major downside of the Whoop Strap for me is the cost. Whoop has completely embraced the subscription model, charging you a certain amount of money each month to use their device and app, but charging you no money up-front for the device itself. The main question I will try to answer in this video is: can we trust the metrics and measurements the Whoop Strap 4.0 provides?

Пікірлер: 335

@Fredrik00 Жыл бұрын

Your reviews on fitness trackers are the only ones worth watching. Accuracy is everything, so thank you for putting in the time to do this!

@AustralianTakeOver Жыл бұрын

he is a lord, need him on all smart devices for life.

@TheQuantifiedScientist Жыл бұрын

Wow! Thanks so much for this nice compliment 🙂

@user-jh8eq9mn3q Жыл бұрын

Absolutely agree 100%

@Paul-cy9ej 4 ай бұрын

Yes, thank you so much for doing these!

@owenbeynon6170 Ай бұрын

Brilliant thanks...But how do you afford all the kit??

@ShervinShares Жыл бұрын

production quality just keeps skyrocketing even higher!

@TheQuantifiedScientist Жыл бұрын

Thanks so much Shervin!

@jakubBae Жыл бұрын

The amount of data and info you went through for this video is insane. Thank you for the thorough analysis!

@bodihearn Жыл бұрын

The level of consistency and attention to detail this took on your part is amazing. The perfect amount of deep-dive info but streamlined so as to not be too time-consuming. You also explained things very concisely, thank you. Awesome video

@leblancexplores Жыл бұрын

I really wish there were more strap sort of devices out there like the Whoop with no display. I don't really want to "compete" with my health figures daily, just know about them periodically and have a more capable battery than most watches that do this thoroughly.

@MarksTech Жыл бұрын

why do you wanna know your health figures periodically? isnt the whole point of these devices to better yourself? the only way to do that is for you to compete with yourself. thats the whole point lol. its one of the reasons i bought my garmin watch, and ended up losing 30 lbs because i was competing with my previous records...

@yuppers1 Жыл бұрын

@@MarksTech Not everyone is the same

@MarksTech Жыл бұрын

@@yuppers1 I get that .. but paying 300 a year just to “sometimes” see your data, and not compete with previous self-records just seems like a hell of a waste of money lmao.

@noadacoolmanfrommars Жыл бұрын

@@MarksTech Just because you are not looking at your wrist every minute does not mean its a waste of money. Some people might prefer to evaluate their performance on a weekly basis to see what went good or bad the previous week and what to improve for the coming week. It all comes down to personal preference.

@jessewocknitz4579 Жыл бұрын

There is a new one similar to whoop called cardiomood. Hopefully it gets a review soon

@kongkongball1 Жыл бұрын

I love how you look so happy in all your videos!

@darrenn141 Жыл бұрын

Wow! The amount of work you put into your videos is unbelievable! I don't know how you do it, but keep it up.

@heikoyeh Жыл бұрын

Subscribed to Whoop a week ago, it's been motivating and I care much more about my sleep now! Made a great decision based on ur review, and of course, used ur ref link! Thanks a lot!

@braxton6425 Жыл бұрын

Thank you for such an in-depth review! This is the first vid I've seen of yours, but won't be the last

@KickingAssAfter70 8 ай бұрын

Rob - just came across this video when searching out info on the Whoop strap. At first glance I was skeptical, but after watching the video and the research steps/format you used, I'm VERY impressed! Nicely done! I've subscribed to your channel, and plan to buy some items and I'll use your link! Keep up the great work!

@capt_george_IV Жыл бұрын

Absolutely fantastic video, thank you so much for taking the time to make it.

@oliverkalali Жыл бұрын

Apart from great scientific approach to testing and high quality content, I believe one of the reasons of the success of this channel is that you're generally a likable person! I see a genuinely honest and kind and calm person. Stay as you are :)

@riverfuss 9 ай бұрын

Thanks! This was a great video. It was the first one of yours I’ve ever watched. You’re awesome!!

@diamondswiper Жыл бұрын

for the amount of effort put in this video is deserves much more views

@joyced7592 8 ай бұрын

Best review on whoop 4 I’ve seen. Thank you for this.

@vinvenus4581 4 ай бұрын

I haven't watched a video of your's for one year and now I am super happy that you have gained so many subscribers. Congratulations!!!!

@hubertarciszewski1897 Жыл бұрын

Thank you for this review. Im WHOOP user for 2 weeks and was wondering how the data is accurate. Mainly I bought it for sleep measurement and now I know that I choose the best option in the market. Also for training I mainly do running and hiking and as you have showed WHOOP shows HR accurately for that activities. For my needs it seems the best option.

@ThtGirlElle 9 ай бұрын

I’ve had the Whoop for almost 6 weeks now and it’s very interesting. Love the sleep stage tracker … thanks for making this review! ❤

@5ervalkat192 Жыл бұрын

This is an excellent review, as always. I was thinking about getting the Whoop because it measures sleep so accurately for a wrist device, but the subscription cost and the lack of even a simple display changed my mind. For now, my Fitbit Versa 3 will do. Thanks for the video!

@nikkil764 13 күн бұрын

Thank you for this video. I just ordered my whoop based on your review. I previously used a Fitbit for several years.

@45montini Жыл бұрын

The depth of this review makes me wonder How this content is free !? Incredible thank you

@adrianagiles7767 Жыл бұрын

Love the scientific analysis. Thankyou. Interested to see how the HR data compares if you wore the WHOOP on the chest vs polar strap on chest.

@betwixt3193 6 ай бұрын

Amazing content. Above and beyond!

@jackdaniellong Жыл бұрын

i would like to see another video based upon the wrist data. Whoop has confirmed this is the most accurate

@wbhub Жыл бұрын

Fantastic review!!

@emilianomicucci7645 4 ай бұрын

Hi Rob very interesting video and well done with the analysis

@FishNoChips 7 ай бұрын

we need nerds like this guy. good work.

@Tariqslo 8 ай бұрын

Best channel to compare smart watch accuracy

@sko1ind366 Жыл бұрын

Your freaking amazing, really debating with myself if i should buy it :-) these videos always helps a ton

@TheQuantifiedScientist Жыл бұрын

Glad I could help! In the end it really depends on your personal preferences 😊

@valentind1402 Жыл бұрын

When watching your video on the Oura ring, you compared two oura ring 3. I think that's really a good idea to compare exactly the same product during the same night to test their accuracy. I really hope you will do the same for the whoop next time. Thanks for your video !

@Handleneedsmorecharacters 9 ай бұрын

Excellent review. My first review of yours I’ve seen. I personally love the Whoop subscription model along with the subtlety & class of the device.

@kingseaeast 5 күн бұрын

Triple like! Great work!

@h3w45 Жыл бұрын

Great content, your videos are a must for anyone looking for a smartwatch by your videos i bought the Huawei GT3 pro and pretty happy with it

@TheQuantifiedScientist Жыл бұрын

Hi H3w4, thanks for the compliment, and happy I could help! :-D

@headndshoulders Жыл бұрын

Hi Rob, thank you for sharing such a wonderful research series! :-) I have a question I’d like to ask. I noticed a change on your overview chart for Mi Band 7 correlation: in this video it dropped to 65-70 from 90-95 in your previous video. I was curious to know if that was intentional or if there were some newer data that affected Mi Band 7 order?

@331slash Жыл бұрын

Excellent!! Great info

@danie0007 9 ай бұрын

This was a good quality review of fitness tracker, you’re awesome taking the time to do it, just on the temperature area every time you want to make a comparison of how good a sensor or detector is you should compare it with something in the same level, is comparing apples with apples, the temperature varies from .5 to 3c on different parts of the body is not the same the skin on the arm than on the armpit, the mouth, forehead or for different holes and cavities in the body 😅. Amazing review ☝🏼

@konnorkininmonth452 Жыл бұрын

Fantastic video and I love your approach to analyzing something.....using SCIENCE

@diegotin Жыл бұрын

INCREDIBLE CONTENT! SERIOUSLY

@RogueCylon Жыл бұрын

The $30/month for subscription is totally insane for the few features this tracks.

@cristobalbalenciaga7295 Жыл бұрын

1$ a day is insane..? It’s even cheaper than a red bull😅

@therealchickentender 11 ай бұрын

@@cristobalbalenciaga7295 Subscription model corps love you.

@cristobalbalenciaga7295 11 ай бұрын

@@therealchickentender just like starbucks, redbull and mcdonalds love you guys

@SeanathonTV 9 ай бұрын

@@cristobalbalenciaga7295Well when you put it into that perspective it seems a lot more manageable. Thanks

@masongriffin2534 7 ай бұрын

It is a steep asking price, however it seems to have some additional trackers compared to other devices for measuring other aspects of vitality although they are not as accurate as the gold standard devices available in a clinical setting. For example, the sleep tracking was the selling point to me because at the time, around a year ago, the sleep tracking offered more information than Apple Watch tracking. However I’m not sure how they compare today with the new series 9 and ultra 2. Once Apple can track sleeping at least as good as whoop can, I’ll switch.

@laoluomisade2438 Жыл бұрын

Can’t wait to watch your review of the Garmin 255. I wonder if the smaller size and the upgraded elevate 4.0 heart rate monitor in it will make it more accurate

@MrGuitarsung Жыл бұрын

you are another level man

@TechHead03 3 ай бұрын

his was awesome. Thank-you!

@anthonycraig274 Жыл бұрын

This has to be the most important video on wearable. We know manufactures will release a product that isn’t as accurate than stated. However a subscription product will be taking your money every month for something that is poor or inadequate performance.

@liszt1967 Жыл бұрын

Thanks for this very helpful info! I wish you would test Whoop's claims about HRV and try to untangle the value of their "recovery score." The value prospect with Whoop is very different than other wearables which are usually a one-time purchase instead of a subscription, making it harder to evaluate its worth.

@GrayWithMe 11 ай бұрын

I agree. The subscription is a tough sell but I love the whoop so far. It also pairs seamlessly with my Peloton. I find the recovery score to be very accurate. It also seems to know when I’m sick too.

@Mojo_DK 8 ай бұрын

I would be interested in the performance of the new ScanWatch 2

@danielplayer3974 Жыл бұрын

this man is awesome.

@zed9zed Жыл бұрын

I'm amazed at how good the Apple watches appear to be compared to the Garmin. I had the expectation that Garmin should be at the top of performance based on their focus in sports body tracking.

@GrayWithMe 11 ай бұрын

I have two garmin watches, a whoop, and an Apple Watch - and they all agree on resting heart rate and similar data that you want to track over time. Also all of them agree on HRV data.

@parisandzainabu 2 ай бұрын

great review!

@Doniyorbek_Turgunov Жыл бұрын

Thanks for the review and analysis Rob! Can you explain why having the same hr sensor (elevate 4) all Garmin devices performed different in sleeping phases analysis?

@ccon8 7 ай бұрын

Great video. I prefer whoop over Apple Watch simply because the whoop is more rugged and fits more of my lifestyle. I do martial arts and have whoop on me, even take it in the sauna. Something that I cannot do with Apple Watch and other wearables

@xzaviergodinez5048 4 ай бұрын

omg, I love this guy, knew what I wanted, and how I wanted it

@ItsJayYork 2 ай бұрын

I think 4 stars is about right. Hopefully the WHOOP team will see this and take action. Heart rate tracking needs to improve to make the band even more trustworthy. Cost and battery are turnoffs too, so it's an overall nice health tracker but with lot of room for improvement.

@bjoerng.700 5 ай бұрын

This is really amazing how much effort you put in these tests!

@eugencatalingherman5892 Жыл бұрын

You should make a comparation video between Whoop 4.0 and the new Garmin Forerunner 955 regarding HRV, Training Readiness. Sleep and Recovery. Its the first Garmin that can compete on this functions with Whoop 4.0

@bboyqbunia608 Ай бұрын

Amazing scientific review

@htt507 Жыл бұрын

Thanks Rob. Great job! Wanna ask, my brother is elliptic and I’m researching different devices that could tell us when he had had a seizure at night. I own the Oura ring and think the movement tracking during sleep is useful also the heart rate tracking even though I understand it measures the heart rate every 5 mins so if he sizes between measurements then it wouldn’t show In your experience what’s the best device for the this? Keeping in my he sizes at night Thank you in advance!!

@ktlz9 Жыл бұрын

EXCELLENT work as always! Any chance you could look at the Xiaomi S1 Active? Some of their products has had surprisingly good results.

@i-see_deadlines220 2 ай бұрын

I think this is great, I would null some of the data and your conclusion purely because the location of the devices are different. And the control device wouldn’t have minimal interference like you stated.

@alecalmanovici 2 ай бұрын

The video is great! How about HRV? It's such a crucial metric for Whoop, would be great to see some data about that too.

@sebastienbrochard9812 2 ай бұрын

Wow ... great insight. Pretty insightful.

@baruchben-david4196 Жыл бұрын

I'm really glad you mentioned the subscription information early, so I could skip the rest of your video. Like you, I much prefer to buy a device outright, rather than pay as I go; and the $20 a month subscription just turns me off. Thanks for your research and your video.

@johnwayne3491 9 ай бұрын

I’d love to see APPLE WATCH ULTRA VS WHOOP 4.0. Amazing in depth review.

@yildiraykomurcu Жыл бұрын

Rob, the ingestible thermometer that you mentioned, MyTempSensor from Purple Axis, is it available for consumers? I have been looking for a continuous body temperature monitor for a long time and haven't found one in the consumer market. Can you share us a link?

@screencast7376 5 ай бұрын

I know you probably dont see every comment, but your channel is the best channel for this genre on KZfaq! No one comes close. Thank you so much for the quality content.

@abdulhamza172 Жыл бұрын

The amount of testing for this device is super high and it performed well...I think if you test the other "better" devices that many times their correlation # will probably drop a bit. Anyway Great video as always keep up the great content 👍 👌 Also hope you get the new galaxy watch early so we can see how it compared to the competition

@darinmartel3595 11 ай бұрын

I... I think I love you... seriously though thank you for the science 🙏

@masongriffin2534 7 ай бұрын

The one question I have is how does the performance change as they update their firmware/software and algorithms? Your data shows that the whoop3 performed differently than the 4 but in later videos the whoop 4 had less agreement across sleep stages. I’d like to see a mega review of a handful of the popular wrist tracking devices, mainly how the whoop4 compares to the Apple Watch ultra 2 with all the new updates to software on the whoop4, like the strength training feature, and the ultra 2’s new OS and so on.

@masongriffin2534 7 ай бұрын

Furthermore, how much is the data affected by software updates? Does it make a difference or does the main difference come from the sensors and hardware?

@jonasroman4180 3 ай бұрын

Thx!! I wanted to try whoop but after watching your video I will stay with my Apple Watch ⌚️

@deesinghda 9 ай бұрын

Hi have you tested or reviewed the Strain score or track and how does this compare to a stress tracker?

@niles_stone2540 4 ай бұрын

This is great I have watched it a few times. I’m curious if you have considered broadcasting the heart rate to another device to compare accuracy of the heart rate. Also did you end up doing a video comparing wearing it on your arm vs on your wrist? Thank you.

@Javiercav Жыл бұрын

Do you know the "AiroFit Pro" breathing trainer ? It looks interesting and I think that can be cool if you test it and compare the results with another test that measures lungs capacity.

@Rajo1012 Жыл бұрын

Getting MY raw data, easily and without any delay or hindrance, that is decision-relevant when it come to selecting a brand to buy.

@TheMocnivocni Жыл бұрын

Another great review. 🙂 Please make review of Xiaomi Watch S1 too. 😊

@RandoRaf Жыл бұрын

Its interesting how the Garmins are so spread out when they are using same optical sensor. What do you think could causing them to be so different. Venu2,Fenix7,Instinct2, Epix

@sigfreed11 Жыл бұрын

Does this data account for the variability of a bicep strap vs chest strap? A chest strap (or even wrist strap) will be much more consistent I would presume then on the bicep. The bicep changes shape/dimensions much more than does a chest/wrist

@neuroidcastle Жыл бұрын

Would love a follow up video on whoops new strength load measuring capabilities announced recently.

@neoneherefrom5836 11 ай бұрын

That strikes me as a huge gimmick.

@whaleshark2625 Жыл бұрын

Great video! I'd love to see a long term review of the Fenix 7 now that it has HRV tracking (in 9.22 beta firmware). I also feel like Garmin accuracy often goes up a lot 6-9 months into a watch's lifestyle due to firmware updates etc.

@TheQuantifiedScientist Жыл бұрын

Noted! I will see what I can do :-D

@AndreaStrazzeri Жыл бұрын

@@TheQuantifiedScientist I sent you a Super Thanks. It’s not much, but I hope you appreciate it. your work is great!

@craigcoco6014 Жыл бұрын

I would love to see this as well as an Epix owner! Thanks for the great work here!

@abdbzm6146 Жыл бұрын

@@TheQuantifiedScientist I am confused between . Huawei gt runner and Garmin 245 music. any suggestion who is more accurate

@harshnigam4390 Жыл бұрын

@@TheQuantifiedScientist please review mi weighing scale 2 🥺

@jaewookim5051 Жыл бұрын

It would be interesting to see if the whoop 4.0 results would improve on some of the harder exercises to monitor such as weightlifting and outdoor cycling using some of the other accessories that Whoop had to offer. More specifically, if doing upper body workout, would the results improve if you placed the whoop monitor on a different part of your body like in the shorts that whoop sells? Essentially placing the device on a part of your body that is not actively being engaged for the workout.

@souhaibsebbane5623 21 күн бұрын

Very interesting idea. I hope he sees this comment.

@KathyFongny Жыл бұрын

Can you discuss specifically what does accuracy mean, in further detail? e.g. ~60% correlation for REM sleep doesn't seems that high. Separately, have you ever tested the Emfit or other 'wearables'?

@patrickbarron7623 Жыл бұрын

I once heard Matt Walker mention something about wearing socks and gloves to sleep to warm the extremities. This theoretically draws blood to the surface of the skin, away from the core, which has the heat transfer effect of removing heat from the core. So your experiment results could be explained that as the core lowers in temperature, the heat is transferred to the skin in an attempt to cool off the core, which might be why your skin temp was rising. Could be interesting to see if the reverse were true: does cooling the skin heat up the core? Kind of like a thermostat regulator?

@TheMalteseMisfit Жыл бұрын

Was about to post something similar from what I had heard by Andrew Huberman. The core temperature is lowest around 2 hours before waking, which would technically mean it's the time when your peripheral temperature would be at it's highest since your core releases heat to the periphery in order to cool itself

@secretcinemalagos5662 Жыл бұрын

Yes cooling the skin .for instance ice bath. Signal the body to heat up

@alexF1989 Жыл бұрын

I love your videos, but why the choice to wear this one around the bicep compared to the other similar devices like Apple Watch?

@sieg131 Жыл бұрын

Had to stop the video to comment. The commitment! This guy over here swallowing pills to record his temp.... farther than I can go

@TheQuantifiedScientist Жыл бұрын

Haha, happy to help Carl!

@filipwaeytens4017 Жыл бұрын

Great video. What about SPo2 accuracy?

@balubalaji9956 2 ай бұрын

i find it difficult to find your channel i could only remember your name "ROB" since you say at the beginning. btw thanks for making these review .

@kalonecho 7 ай бұрын

the shade with celsius being correct lmfaoooo

@sergiocoelhosergiocoelho_a9033 Жыл бұрын

Great job. I would like to see more watches from chinese brands since they are usually cheaper.

@ersamuelo1237 Жыл бұрын

I'd really love to see your review of the xiaomi mi watch s1 active 😍

@roncarvalho Жыл бұрын

Thanks!

@diomedes39 Жыл бұрын

I wonder if to drop the core temperature the body must do so by increasing blood flow to the periphery in order to radiate that heat. It would make sense for there to he a disparity

@TheBQ92 Жыл бұрын

Would love to see a review from you on the Halo bands from Amazon.

@nx2269 7 ай бұрын

The improvement in the accuracy stats from whoop 3.0 to 4.0 make a subscription seem useful…always get the newest gear?

@nojhead Жыл бұрын

Wonder if the position change accuracy of the heart rate reading, just Because wrist placement ultimately lands devices directly ontop of larger blood vessels where as the bicep is a larger area with similar number of blood vessels so less likely to land the device directly atop one - also typically thicker skin/fat layers covering the blood vessels.

@Shadman1603 Жыл бұрын

Was thinking about having one of these but I wouldnt pay a monthly fee to be told when I had a good sleep. I know when I have slept good and would need to train even if i wasnt 100% (apart from when being ill of course).

@user-jh8eq9mn3q Жыл бұрын

Since devices are getting better and better overtime and you gigantic work is bringing this up, I start to think these companies are getting to collect huge amounts of good quality data on people. So I start to see the huge price consumer pays for accuracy. For instance, what if medical insurance companies would buy these data and price their insurance based on the results. Are we getting there ? Of course the answer is yes. But the point is.. how fast are we getting there ?

@MrAlex-lk8zn Жыл бұрын

Hey man! Do you think we can have a Huawei Band 6 revisit like what you did for the Mi Band 6?

@joelberman5981 Жыл бұрын

You’re missing the Scosche in your heart rate trackers. I have done several tests where I wore it along with a chest strap while riding an indoor bike, and it agreed to within two heartbeats the entire time.

@anthonycraig274 Жыл бұрын

OK, how did you get the myTemp sensor? I really want one/two

@nikvh9027 11 күн бұрын

Great video! I get that you put the whoop on the biceps and it should perform just as well given it’s advertised also for that. However somehow I wonder now whether it would perform better vs say the Apple Watch if worn on the wrist… I guess another comparison would be asking too much…:) great video though!

@iproallday1 9 күн бұрын

I too was thinking this same thing. I think the device would move around more on my bicep vs my wrist, especially during weight training. I haven’t checked the specs but I wouldn’t think the whoop 4 would have much worse sensors than the Apple Watch but perhaps. I also don’t know if the sensors work better in different places. Like maybe the wrist has relatively thinner skin than the bicep? Maybe less fat? Less water retention? More sweat on bicep vs wrist? Not sure how these affect the sensors accuracy. Id think having different placements of devices would have less of a control of variables. Maybe the Apple Watch on the bicep would rank much lower than it is or even lower than the whoop? Idk. Maybe I’m thinking about it too much. lol. In the market for whoop or ultra human ring so this video popped up of course. The detail here is cool at least.