Whoop Strap 4.0: Long-term Scientific Review (7 months!)
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- Опубликовано: 18 июн 2024
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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? 
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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!
he is a lord, need him on all smart devices for life.
Wow! Thanks so much for this nice compliment 🙂
Absolutely agree 100%
Yes, thank you so much for doing these!
Brilliant thanks...But how do you afford all the kit??
production quality just keeps skyrocketing even higher!
Thanks so much Shervin!
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.
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...
@@MarksTech Not everyone is the same
@@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.
@@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.
There is a new one similar to whoop called cardiomood. Hopefully it gets a review soon
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
I love how you look so happy in all your videos!
Thank you for such an in-depth review! This is the first vid I've seen of yours, but won't be the last
The amount of data and info you went through for this video is insane. Thank you for the thorough analysis!
Thanks! This was a great video. It was the first one of yours I’ve ever watched. You’re awesome!!
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!
Wow! The amount of work you put into your videos is unbelievable! I don't know how you do it, but keep it up.
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!!!!
Absolutely fantastic video, thank you so much for taking the time to make it.
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!
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 :)
Thank you for this video. I just ordered my whoop based on your review. I previously used a Fitbit for several years.
for the amount of effort put in this video is deserves much more views
Best review on whoop 4 I’ve seen. Thank you for this.
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.
The depth of this review makes me wonder How this content is free !? Incredible thank you
Great video!! Amazing! I love it when people do this kind of stuff.
Amazing content. Above and beyond!
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! ❤
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.
Hi Rob very interesting video and well done with the analysis
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!
Fantastic video and I love your approach to analyzing something.....using SCIENCE
Fantastic review!!
The $30/month for subscription is totally insane for the few features this tracks.
1$ a day is insane..? It’s even cheaper than a red bull😅
@@cristobalbalenciaga7295 Subscription model corps love you.
@@therealchickentender just like starbucks, redbull and mcdonalds love you guys
@@cristobalbalenciaga7295Well when you put it into that perspective it seems a lot more manageable. Thanks
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.
i would like to see another video based upon the wrist data. Whoop has confirmed this is the most accurate
Your freaking amazing, really debating with myself if i should buy it :-) these videos always helps a ton
Glad I could help! In the end it really depends on your personal preferences 😊
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
Hi H3w4, thanks for the compliment, and happy I could help! :-D
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 !
Excellent!! Great info
Best channel to compare smart watch accuracy
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.
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 ☝🏼
INCREDIBLE CONTENT! SERIOUSLY
we need nerds like this guy. good work.
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
omg, I love this guy, knew what I wanted, and how I wanted it
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?
great review!
you are another level man
his was awesome. Thank-you!
I know you probably dont see every comment, but your channel is the best channel for this genre on RUclips! No one comes close. Thank you so much for the quality content.
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
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.
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.
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?
Triple like! Great work!
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.
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.
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
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.
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.
This is really amazing how much effort you put in these tests!
this man is awesome.
EXCELLENT work as always! Any chance you could look at the Xiaomi S1 Active? Some of their products has had surprisingly good results.
Thx!! I wanted to try whoop but after watching your video I will stay with my Apple Watch ⌚️
I’d love to see APPLE WATCH ULTRA VS WHOOP 4.0. Amazing in depth review.
Getting MY raw data, easily and without any delay or hindrance, that is decision-relevant when it come to selecting a brand to buy.
Amazing scientific review
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.
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.
I... I think I love you... seriously though thank you for the science 🙏
Wow ... great insight. Pretty insightful.
Thank you 🙏
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!!
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?
Another great review. 🙂 Please make review of Xiaomi Watch S1 too. 😊
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 ?
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.
Would love to see a review from you on the Halo bands from Amazon.
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.
Great job. I would like to see more watches from chinese brands since they are usually cheaper.
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.
Thanks!
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.
Great video. What about SPo2 accuracy?
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
I would be interested in the performance of the new ScanWatch 2
Would love a follow up video on whoops new strength load measuring capabilities announced recently.
That strikes me as a huge gimmick.
Are you currently trying out the ultra human ring air ? I would love to know your opinion on this as well! Thank you for this video, my whoop is on the way
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
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
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 .
I love your videos, but why the choice to wear this one around the bicep compared to the other similar devices like Apple Watch?
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'?
I'd really love to see your review of the xiaomi mi watch s1 active 😍
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).
Great review, I have just ordered a Whoop 4.0 using your promo code! I am still skeptical about it but still ordered.. already using a AW7.. let's see how Whoop behaves!
Seeing as your still on the trial - did you see apples new announcement for the new watch os? Basically makes it a whoop with the metrics so might be a good idea to look so your not locked into a year contract
@@lewdude2k8Yea, I did follow the WWDC and it looks promising. Need to wait for this fall once watchOS 11 is available to everyone. So far I am doing fine with Whoop, the only thing I hate is that I am wearing watch on one wrist and Whoop on another which I don't like
@@aparagarwal1234 nice. I have done a lot of testing and i can tell you my setup with whoop is the bicep band and the aw on the wrist. That way you are only wearing the Apple Watch on your wrist and the whoop out of sight. The whoop on the wrist is highly inconsistent. On the bicep band it becomes probably as accurate as the Apple Watch is on the wrist. Highly recommend the bicep band if you are to stick with whoop. All the best
Thankjs for all the very nice videos about the watches. I would have one querstion for you? We have a mattress company and would like to offer to each customer a sleep analysis of their sleep and were wondering which watch and which approach yopu would take? Thanks again
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.
Very interesting idea. I hope he sees this comment.
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.
OK, how did you get the myTemp sensor? I really want one/two
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
Hi have you tested or reviewed the Strain score or track and how does this compare to a stress tracker?
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?
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
Yes cooling the skin .for instance ice bath. Signal the body to heat up
The improvement in the accuracy stats from whoop 3.0 to 4.0 make a subscription seem useful…always get the newest gear?
Hey man! Do you think we can have a Huawei Band 6 revisit like what you did for the Mi Band 6?
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.
Noted! I will see what I can do :-D
@@TheQuantifiedScientist I sent you a Super Thanks. It’s not much, but I hope you appreciate it. your work is great!
I would love to see this as well as an Epix owner! Thanks for the great work here!
@@TheQuantifiedScientist I am confused between . Huawei gt runner and Garmin 245 music. any suggestion who is more accurate
@@TheQuantifiedScientist please review mi weighing scale 2 🥺
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!
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.