Whoop 4.0 In-Depth Review // Accuracy and the Algorithm 

I hate the fact that it's a subscription program... For me it's a deal breaker.

This was a FANTASTIC video. No joke, you did solid work here. Thank you!!

Update for those that mainly do weight training/musculair training: Whoop released an update that can finally measure musculair strain. Instead of getting 5-6 you can now get 13 with just muscle training!

Phenomenal review, I very much appreciate your experimental approach and data analysis review. Subbed!

Thank you for your detailed and honest review!!!!

BEST review video I've seen for this product! THANK YOU!

I'm tired of subscriptions everywhere, not buying for this reason

The best review about Whoop I've ever watched.

Genuinely loved this in-depth review, no crap just facts. Thank you so much and keep up the amazing work❤️

Excellent in-depth information clearly delivered. I just got my whoop and this video helped me understand the various aspects of this device.

Love the data and the comparisons! Wish there were more technical unbiased reviews on YT. Heart felt gratitude DesFit!

This was such an impressive comprehensive review. Thank you for doing this! Very helpful

Great review, can see so much of effort put into the review 🕴️

Thank you for the review. Helped me make up my mind.

Appreciate the bicep band section, I’ve been underwhelmed with the accuracy of my whoop on the wrist and was looking for reviews of the bicep band accuracy to see if it would help

Always a solid review! Best in the Biz.

Excellent review! My thoughts exactly. Garmin should come up with a better way to track HRV and display recovery as whoop does. I’m certainly not happy having to be subscribed to whoop for life to get this. So yes, I’m too patiently waiting for some garmin upgrades. They seemed they slowed down a bit.

Great review thanks Des! You're awesome! Since when did we become unable to work out whether we need more sleep/rest I wonder! Listening to the body still rules. This gadget sounds like a real money spinner...I'm off for a nap ;)

09:20 This is what I was looking for. I was keen to know how the Strain feature would work with weight training. I don't do enough cardio to warrant this purchase. Thank you for such an excellent review and helping me decide that this is not the wearable for me. I'm confident that biotech wearables will be ubiquitous in the future but they've still a long way to go.

Very detailed review.. Great job!

People who have Whoop straps seems to absolutely love it. Whoop-fanatics. I can totally understand how their break down of rest and recovery can be super attractive but I just can't justify that price per month. 😬. I figure all of these workout detections are built around learning algorithms. Seems like we'd see a good bit of improvement over the upcoming years. Should be nice. Amazing video Mr Des! 👏

The Best review possible! Ty

Very thoughtful and detailed review...

Really good video! Plenty of information to digest

great analysis and insight!

Another great thoughtful review. If Garmin can improve their data presentation in their apps and can make it more actionable, personally, I can't see a place for this device on my wrist given the cost. Although, I don't love going to sleep with my Fenix 7s (even if it is the smallest device of that line) so I do think these minimalist devices have a place. I would love to see companies like Garmin come out with a low-cost, low-profile companion device for sleep tracking only.

Fantastic unbiased review. I’m gonna stick with my Vivoactive but it does seem like this product can be improved to the point it can better compete.

This review was extremely helpful. This definitely let me know I am not the right user. I also saw somewhere that if you cancel your membership. They will charge you $60 sales tax for the device. Which is also ridiculous.

Thanks mate, appreciate the review as always.

My experience was with Whoop 3.0 and while I find what Whoop is trying to do with analytics and presentation really interesting, I found it overkill for me, and the expense unjustified. I am also an arthritis sufferer, and if I followed Whoop's strain recommendation following good sleep recovery consistently, my joint health would suffer severely. I certainly dialed back to what I knew my body could sustain, but the analytics called me out as an underperforming slacker. 😆As for the form factor, I found the wristband didn't hold up for me and the device itself caused a skin rash, something no sports watch has ever done. Perhaps that's been improved in this new version. It will be interesting to see how it all progresses into the future. Nice review Des, thanks!

Great review, I intend to use Whoop solely for the sleep, HRV, and recovery data...don't like sleeping with a heavy watch. I use a Garmin forerunner 945 as well as a garmin HRM Pro Plus chest heart rate strap for key workouts. I mainly use during running threshold workouts to stay in the proper range. Your going to get the most accuracy from a chest heart rate strap.

Great review. I was super keen to buy one some months ago but their system to purchase it, just failed to work. I gave up after several attempts and updated to Garmin Fenix 7x, which I've liked - but still see the differences the whoop offer.

Great review! Thanks a lot. I think I will stick with my Garmin Vivosmart 4 as a whole day tracker and tracking body battery and also my forerrunner 945 for my workouts. I wonder if we will ever see a Vivosmart 5 though?

It's an amazing device in terms of sleep tracking, that being said the really important feature that isn't there is being able to observe all the data during the current time when you're actually doing something, unless you're actually looking at your phone, which isn't really that doable in many activities. so the sleep tracker is useful af, other things lack in accuracy and are not actually visible at the point of time you're doing something.

Amazing video. Could you do a review on the xiamoi S1 active? Would love to see that.

Great video! I was wondering if you were planning to make a video of comparing several the hrv-centered features across devices: oura's and whoop's recoveries and garmin's "body battery". I understand that you can't quantitatively compare them against smth robust like polar h10 in the case of the HR, but even how you "feel" the suggestions of one are more informative than the other would be useful. I own whoop because it has no screens/etc and the data is presented in an information-dense way. I wish it did something like the body battery for the stress/strain incurred during the day, and gave me access to my data. I wouldn't mind switching to something more accurate once other devices (e.g. garmin) are low profile (no screen, can be worn on the bicep).

Good review, I have had my whoop 4 for a week now, I love how light it is. I find the heart rate as accurate or the same as my Apple Watch series 6 when worn on the wrist. I really like it so far, I also have that battery issue, where you need to slide it off and back on again to charge. I am sure this could be fixed with a firmware update, I did update the battery pack firmware and the watch firmware. It is expensive and I also dislike subscription services, but so far I’m happy with the device.

I like the whoop largely because I just want to be healthy, I don’t want yet another screen in my life. Especially attached to my body. I want some no screen competition to go against whoop

Another thing to keep in mind is health insurance subsidies for health wearables. I'm getting reimbursed $150, and ended up paying $265 for the 12 month subscription, making the $22 a month turn into a very reasonable $9 a month for 1 year. The subscription model works well with that kind of yearly reimbursement, versus the purchase of a $750 watch and only getting the single $150 reimbursement. As long as it's comparable to the fitbit, that's good with me.

Night shift nurse here. I work out a lot, but have shitty sleep. Just ordered this. Hope it can help me

So I have Garmin Fenix 6x Pro and I'm looking for exactly something like whoop. Something to track my sleep (Fenix is uncomfortable to sleep with), give additional health info, status, recovery (that I can compare to Fenix) etc. Just a simple strap not a watch with a screen. I did some research and it also appears in this great review as well that Whoop is something like a Beats By Dre (who knows will know what I meant) so my question is there any alternative to Whoop or that's the best we got?

Super review bro, one ques - can we see this analysis on website on laptop ? or only on mobile app !

Great review - I fully agree with everything you have said. For me, Whoop is worth it because of the gamification of wellness/fitness in which I can compete with my friends. I look forward to seeing my recovery every morning but I know it has its flaws (hardware, price). What wearable do you personally use and believe in now - Garmin? I am very open to trying new wearables. Thank you!

Great reviews as usual . It be awesome if you could compare the whoop 4.0 with polar recovery pro and garmin training load /body battery.

Thank for the wonderful in-depth review. This far exceeds what I’ve been researching for awhile. Love hearing the shortfalls too so it gives me some realistic expectations. I am bummed about the fairly expensive subscription too. For everything, I might be okay with something creeping towards USD $12 -15/mth. Maybe there could be tiered level of service with $2 for each component in the future. All things considered there is one thing that’s moving me towards using this. I prefer to not use a tracker on my wrist but rather have it higher on the forearm or even on my bicep. Forearm cos it doesn’t get in the way when I’m working with my hands generally. Bicep so I can have it hidden under my sleeve for whatever occasion. I feel sensors need to stop trying to be a watch and just be what they’re meant to be, sensors.

I tried Whoop 4.0 for two weeks , I like their software but the HR sensor is so bad and the calories burned estimate is too low , Yesterday’s full day calories burned was : Apple Watch: 3220 Fenix 7X : 3070 Whoop 4.0 : 2167 I’m just canceled my membership Thank you for the video brother ❤️

Do you know if you’re able to do a pause on the whoop monthly sub, as I train around 6 months out of the year for Triathalon and it wouldn’t be that useful for me the other half year. Thanks!

Thanks for the video / review man. Really detailed and thought out. I'm currently rocking a Fitbit Charge 2 (I know, it's shockingly still going). Obviously, I'm looking for a new sports watch and had considered a Whoop until I came across this review. I mostly weight-lift and run 3 - 4 times a week (just a 3k). But due to my crazy work schedule, the sleep factor was attractive. I won't be moving forward with my purchase but if anyone has any suggestions on an investment piece for the next 3 - 5 years would love to hear.

Out of curiosity and since it was worth a Desfit review spot, I casually checked the pricing of this piece of tech. Are they nuts? Anyone who is not depending on optimal performance and the features, feedback- app stuff, AND community is likely to be repelled by the price tag. Suddenly my Fenix 7 seems a much cheaper investment with ongoing development, body battery, and an actual frigging smartwatch with a screen on my wrist. Not to mention the better wrist HR, which is the base for all the fancy calculations...

Love the review, made me consider the opportunity cost of getting this device. Thank you for being very informative! Might consider grabbing this as I prefer the low profile data collection on the bicep. Does anyone else have any alternatives they know of that can meet this?

Great video.

That was an excellent discussion of the Whoop. I think the hardware and website are cleverly designed and the info would augment my other tracking devices, but I just cannot justify $40CAD a month for these metrics. Thanks again for putting in the work on this..

Hi Des .. I noticed that you use a bicep band. Recently I had a warm/hotish (little uncomfortable under the arm above ribcage) device after I removed the battery pack from charging it. The battery was charged properly and only in place for enough time to charge it full and on removal it was noticeably hot that disappeared to warm quickly enough after that. I’ve reported it to Whoop a week today and they said they would send a replacement battery and device but the tracking link doesn’t work and the replacement didn’t arrive. As you know data collection is the purpose of the device and removal or absence breaks the chain and isn’t ideal after three years of use. Is this a problem that you have come accross ? Obviously under the arm is warmer than the wrist and is more likely to be covered up except perhaps in sleep. For me I would have thought such an occurrence would be flagged as a priority by Whoop but looks like it’s same as any other issue. I’m a big fan of Whoop and I really wonder is non wrist band or clothing use a bit of a temporary location solution where you have to move it back to the wrist. Just an interesting development that I think I need independent information on as I posed these questions to Whoop without reply. I’m based in Ireland and all sort is by email online with a ticket number and wait for reply type support. Keep up the good work and thanks in advance for any feedback.

Can you make a review abt the withings scan watch? It looks nice, but I would be interested in the accuracy! :)

any chance you could compare athletic to whoop? I love the apple watch and have tried both the whoop and athlytic and see that the numbers i get are close enough for me to not want to pay for the whoop.

Thanks a lot for taking the time to make this review, you put a lot of effort into it and it really shows! I did have one question about the subscription I'm not sure if you know, what happens if you subscribe for one month and don't like the watch. Can you just cancel and keep the device? Or do you need to send it back? Thanks!

Everyone says the heartrate is sortof busted but I am more interested in sleep and recovery. I ordered one for a year lets see what we can learn. thanks for video man.

i did a serious dive and compared a whoop 3 for 18 months, against Garmin instinct solar, oura ring and apple watch. i kept the apple watch because insurance paid and it seemed more accurate than all the others. i liked the body battery with garmin but it seemed to me that the oura ring was better with recovery info and sleep. garmin was more hit and miss even though i loved the instinct in general. oura was much more consistent for sleep than the others. whoop just seemed to miss with heart rate and that messed with hrv/recovery. i decided against trying whoop 4. oura and apple are plenty.

That subscription kills it for me

Definitely getting one of these since it’s HSA eligible!

Great review. I don't prefer the subscription based model but I guess it works for sport professionals.

HELP... im thinking about getting one of these devices but im not sure it will do what i want ? im not looking at fitness so much as health, manly heart rate and temp data for while im aslepp , as iv been waking up with my heart racing and sometimes with my skin feeling on fire to the point i feel im sick , once im awake for ten minuets or so or if i quickly get up and move it all calms down. could any of the fitness devices track any of this , or is it just going to struggle?

Hi! Thanks for the in-depth review! How did you get access to the data in order to plot those graphs comparing several sensors?

Wonderful video! I have whoop for a week now! I have had a Fenix 6x solar for the past 2 years now! I wanted to upgrade to the 7 but said let me try something else. from my 1 week's use of whoop I just think it completes my Garmin in the recovery part! also, HR readings are a 1 beat difference between my F6 and whoop 4.0. I like that whoop detects naps. I like the sleep part of it. Garmin's body battery is good sometimes but I still like the part where whoop tells you to go to sleep at a particular time!

Hi, I want to have my fav watch on, not any other smartwatches or smart bands, what do you guys have to recommend for me, other than the whoop (obviously Whoop is too expensive, you have to pay it first but not monthly).

Would be curious what you think of a concept that does something similar, but for the brain / mind - strain, recovery rest.

thank you

You also use a garmin watch... why´s that? I have a fenix 7 now.... but this whoop looks more accurate on HR , HVR measure? Would be nice to have some review about those difference! Nice video though! Cheers

whoop has the best support service.

I’m getting one for my 47th bday in a few weeks and can’t wait! I guess that’s when you know you’re getting old 😂

Could you do a review of the latest whoop 4 firmware update? I love your content btw! ❤

I don't think I can afford WHOOP, however I really like that it is a stylish band and not a "smart watch". Are there any cheaper alternatives that keep the style and also help with fitness and health?

How does it compare to fotbit. It also has readiness score, sleep score, sleep stages, heart rate during the night and what is resting heart rate , trend etc

When using the bicep band try placing the sensor on the inside of your arm it might detect better HR maybe overall since the artery is right there

I think there is a big problem with HRV baseline. If for example you get the device and start off a little sick without noticing it, the baseline the device will calculate is ultimately wrong. Thus the whole recovery score could be quite off.

I’d like a to hear a review on Morpheus by Joel Jamieson vs whoop. Not sure if they made any tweaks since a few years ago.

I just got mine. Very disappointed that i can't have it on my right arm where i have tattoos. The sensor doesn't work if you have tattoos. So i have to use my garmin on my right since it has no problem getting a reading. Hope they will fix it in the future

I saw it with one of those famous soccer players, he uses it to check his training level and recovering time and others as well. What I want to know is, if there is a sport watch that can perform the same as whoop

Very helpful! Huge turn off that it drops out of HR tracking periodically.. my Apple Watch is doing the same thing, (se gen2) so I’m on the market… Also I see the strain / recovery model on Strava as well, and I can’t decide if I like it or not.. maybe because it seems so hard to improve the “effort”score.

Based on your opinion, is this product good only for “heavy-duty “ / active sports athletes, or ordinary people not much into sports activity can have the benefit of using it?

I tried WHOOP and it did not work for me. It would randomly say my heart was racing at 215+ while standing still or walking to my car. I would compare the data with the data from my Fenix 5 to ensure I wasn’t dying and my Fenix was reading heart rate 78ish. This happened almost every other week. I let WHOOP know and I was told the shape of my wrist would make it impossible to be able to use the WHOOP. Hmmm.. OK 👌🏾. I sent the band back. Got an Apple Watch series 7 and have not had an issue with heart rate readings.

10 bucks a month and I might consider it. Also it would be nice if it would be as good as my polar OH1 / verity sense so I could replace it. But since it's not as good as the polar (so I have to keep wearing the polar for good data) and way too expensive it's just not worth it. Make it as expensive as my Trainingpeaks subscription and we're talking :)

Can you compare this to the Halo Band from Amazon?

Can you connect Garmin/ Strava apps to whoop app?

Hi great review. Is this an ad or did they pay to you make this?

I'm currently thinking about getting a whoop 4.0, for me the deal breaker is the low profile, I can't wear anything like a normal watch or even sports watch due to my job so are there any other similar options or do whoop have it sewn up?

Do you have any comparison data for a whoop to an Apple Watch.

Hvala!

Grt helpful vid thanks! Do u know if all the other makes of wearables check oxgen,heart, sleeo variations,temp & stress levels etc...? Im only needing a wearable to monitor my stats. The reason being im disabled with chronic illness & am wrkng with a new clinicuan/fdp.Hes advised me to get a whoop so he can see & chk my readings 24/7.But i dont want the subscrp,i think its expensive 4 what it is,id much rather have a wearable to keep Alot hav said whoops inaccurate too.Wondering if id be better off with a fitbit,garmin,huawei or to just get an apple watch & a 2nd hand iphone? I dont understand why none of these comps do a basic body stats wearable without all the sports stuff 4 disabled people or just minimal sports,focusing on stats more.Cos itd be a really helpful tool,espesh when wrkng with a clinician/fdp.Thanks 4 ur help in advance.

The accuracy of the whoop band is still problematic - so much so, that I probably will not renew my yearly subscription. I have, however, found an easy hack for precise accuracy, especially while running, which is the least accurate of the three sports I do: swimming, cycling, and running. I place the rubber band designed to be worn over the whoop band while swimming, to any time I work out. And the hr data is almost exactly matching my chest strap. Overall, I don’t feel the price justifies the value here anymore. Thanks for your video.

5:38 it’s based on a RPE scale which intended to associate effort with heart rate. So a 6 is a no effort since most people’s resting heart rate is 60. 21 is the max since for most people 210 heartbeat is an all out max rate. Hopefully this helps anyone in the future.

What watch wouod you suggest to those with disabilities wanting to Track Health, sleep And Health during Fitness. Samsung Galaxy watch 6, or The whoop, I really hope Someone replies to This im having a hard time figuring out the best one for my needs

Desfit just so you know, they say you get a free new device when released, but this is rarely true. They make you recommit for another 2 years to do so. I had a few friends that had the 3 and were already subscribers. But to get the 4, they had to recommit and pay varying fees. My one friend had to commit to a new subscription and pay like $80.

Great review, I am more interested in the sleep tracking. The bottom line is if you don't want a google product, you are stuck with Oura.

I bought it when my fitbit sense died and there's no real repair support for their flagship devices. Whoop's support for the hw is included in the sub so I am using a whoop for fitness/sleep and a smartwatch for smart watch stuff which I take off when I go maniac mode. I'd like to hear about those who have broken a screen on the garmin and what that repair process looks like.

I’m curious about the whoop can you cancel the subscription and just use certain things like the sleep tracker which mainly what I’m looking for. Or to use the app I need the full subscription for in order to use the damn thing?

Love the product, Can't get behind the GIANT monthly cost to use it. If whoop wants to be taken seriously they should sell this device for $100-$150 and remove the monthly subscription or lower it to under $5.

Excellent video,very well presented, product certainly not worth it for the price. Good honest review.

It seems to me that the Whoop device is functionally more like an Oura ring that’s worn on the wrist rather than a smartwatch. I was wondering how it’s features and accuracy compare with the Oura ring. I’d love to see you compare these two devices.

I actually like that it just looks like a wrist band because I miss wearing nice watches