

🔥 Elevate your wellness game 24/7 with WHOOP 4.0 ⏱️
WHOOP 4.0 is a sleek, subscription-based wearable that continuously monitors key physiological metrics like heart rate, respiratory rate, and sleep quality. It includes a waterproof, on-the-go charging battery pack and an Onyx SuperKnit band. Designed for adults seeking data-driven health optimization, WHOOP delivers personalized insights and recovery recommendations, supported by a vibrant community of fitness pros and enthusiasts.










| ASIN | B0BWSF6H4Q |
| Age Range | Adult |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Batteries Included? | Yes |
| Best Sellers Rank | #2,705 in Sporting Goods ( See Top 100 in Sporting Goods ) #4 in Sports Heart Rate Monitors |
| Brand | WHOOP |
| Color | Onyx |
| Compatible with | Smartphones, Tablets, Laptops |
| Customer Reviews | 3.9 3.9 out of 5 stars (2,430) |
| Date First Available | 3 September 2023 |
| Department | Unisex |
| Description Pile | Lithium-Ion Polymer |
| Display Size | 4 Inches |
| Display Type | No Display |
| Features | Activity Tracker, Sleep Monitor, Stress Monitor, Wireless Charging, Alarm Clock, Body Temperature Monitor, Custom Activity Tracker, Calorie Tracker, Heart Rate Monitor |
| Included Components | Purchase includes an initial 12-month WHOOP membership, 4.0 hardware, Onyx SuperKnit band, and wearable, waterproof* battery pack. |
| Item model number | 973-001-000 |
| Length | 7.1 inches |
| Manufacturer | WHOOP |
| Material Type | Microfilament Yarn,Stainless Steel |
| Number of Items | 1 |
| Product Dimensions | 18.03 x 2.79 x 1.02 cm; 140 g |
| Shape | Rectangular |
| Size | 4" |
| Sport | Fitness |
| Style | Modern |
| Team | WHOOP |
| Weight | 1 Kilograms |
| Width | 1.1 inches |
W**R
Bad customer service
The device log out be its self specially when i sleep ( just less than a month from the purchase), i try to contact the seller but there is no respond, not recommended at all
D**.
Total disaster , does not do what it's built to do
I have had a Fitbit for a while while, avdcwabted to upgrade, after positive reviews I have heard about Whoop. My experience outline is below: - very quick arrival, very straightforward setup - the strap is not particularly pleasant on the skin, if one is never to take it off, but that's not a big deal, I got used to it in a few days - I had Whoop for 10 days. In that time , it never, ever, showed me even close to what I slept. Never showed more than 2.5 hours. It did not detect when I went to sleep, and did not detect when I woke up properly. - aside from that, it detected 130 heart rate when I was sitting still, and 65 when I was in the gym - i tried adjusting, tightening the strap, lower higher, nothing worked. Just random data coming out - I wrote to support twice: once after 4 days, and then immediately after support responded. Both times, it took 3 days for someone to respond to me - The first time, nothing constructive was said. The second time, when I said I am returning the product if there is no help, I was asked to take pictures of my srn, wrist, with and without whoop, with belief they identified the issue and wanted to verify. - My Fitbit may have problems, but never registering data and knowing when I am moving, abdcwgen I am not - I am basically being asked to do QA while paying for Whoop product AND a monthly fee - also, App interface is very busy, and I have to rotate the phone to access some functionality, which is as basic as drilling into sleep data
B**S
Worth it!!
The best fitness and health tracker. Can be worn 24/7, easy to wash, great metrics, accurate tracking, can share stats with friends, can join family memberships. It’s a necessity if you want to keep track of your health journey.
R**D
One of the best investment i made.
I've been using the WHOOP 4.0 for a while now, and it has been an absolute game-changer, especially for someone like me who suffers from sleep apnea. This device is more than just a fitness tracker; it's a comprehensive health tool that has significantly improved my sleep quality and daily activity levels. The sleep tracking feature is incredibly detailed, providing insights that have helped me understand my sleep patterns and make necessary adjustments. Additionally, the activity tracking is spot on, motivating me to stay active and healthy. It's comfortable to wear 24/7, and the app interface is user-friendly, making it easy to monitor my progress. Investing in the WHOOP 4.0 has been one of the best decisions for my health and well-being.
W**I
جميل
A**.
Firmware update failed, firmware update on battery pack update not working
Just got the delivery and i followed the detailed instructions, here what is happened. Appreciate if tge seller can reply point by point 1- i charged the battery pack till light is green, once i plug it on strap to charge, the light was red (never being green) which means battery is empty 2- battery charged the strap till 90% only and didnt charge anymore 3- since 12 hours im trying to update the firmware and i read all support silly documents and till now the firmware update always failing 4- i installed the battery pack updater on laptop and i plug the battery directly to usb. 4.a- the firmware up to date button is off cant be used 4.b- although the battery percentage appear and although the charging is extremely slow, the charging indicator will not be updated unless you run diagnostics. With all my respect. This product didnt pass the basic quality control (the abc). With such product, the consumer should not google things to fix just brand bew product. 5- i applied a request and waiting support reply, i hope they will not route me to read support documents 6- no support chating system 7- im giving sometime for things to be fixed else i'll return the item and never think about it again 8- please please please respect the consumers, do correct QC on your products, dont use people to find the bugs and you fix it after 9- for battery if it only charge one time, definitely ill return this product.
J**E
Great product, if you utilise it
Great product, works best when you are regularly active. A little redundant if you are not.
S**4
Solid tracker, better value
I got the Whoop 4.0 for my brother. He’s serious about his workouts, and this fits him well. Tracks recovery, strain, and sleep with impressive accuracy. Clean design, easy to wear, and the app is smooth. It makes a great gift for anyone who takes training seriously. Only downside? There’s one small, barely noticeable “surprise” when it comes to their subscription promises. Let’s call it a minor convenience. Still, performance-wise, it does the job. No regrets.
C**S
I ordered from Amazon (as the leading site said, delays), and it came the next day. 2nd day wearing it, it already shows me my sleep patterns, stress levels, recovery rate, and so much more. It is brilliant for those wanting to improve their health and optimize their performance. You need to wear it for four days to gather all your data, but it already shows me so many insights. Highly recommended!
M**I
5★
A**R
I bought this as a birthday gift for my husband. He is quite happy with the product. How good it is in terms of tracking and performance will only be known after some data is collected and compared with his other device. Hope this will help him understand his recovery patterns after long runs.
A**N
I bought the Whoop band for my 18-year-old son, who plays high-level hockey, and it has truly taken his fitness to the next level. I was skeptical at first—wondering why he didn’t just want an Apple Watch or Fitbit, which track fitness and offer other features—but after seeing the detailed analytics this band provides, I’m blown away. It’s far more advanced than anything I’ve seen with my own Apple Watch or Fitbit. One of the coolest features is that it syncs with his teammates, allowing them to compete and compare who worked the hardest during practices and games. It also tracks recovery status, which has been a game-changer—he’s getting more rest now instead of staying out late, and I love that. If you have an athlete who’s serious about their fitness and performance, I highly recommend the Whoop band. It’s not just a fitness tracker—it’s a tool for real improvement.
V**U
Great fitness tracker! Very accurate in tracking steps, heart rate, and sleep. The battery lasts long, and it’s comfortable to wear all day. Definitely a great companion for my workouts
Trustpilot
2 days ago
2 months ago