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WHOOP 4.0 with 12 Month Subscription – Wearable Health, Fitness & Activity Tracker – Continuous Monitoring, Performance Optimization, Heart Rate Tracking – Improve Sleep, Strain, Recovery, Wellness

  • Based on 1,704 reviews
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$239.00 Why this price?

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Nov 23
Order within 4 hours and 46 minutes
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Features

  • EVERYTHING YOU NEED IS INCLUDED: Purchase includes an initial 12-month WHOOP membership, 4.0 hardware, Onyx SuperKnit band, and wearable, waterproof* battery pack. THIS IS FOR FIRST TIME WHOOP MEMBERS.
  • CONTINUOUS MONITORING: WHOOP is a unique wearable fitness device that offers continuous monitoring of physiological data, including heart rate, respiratory rate, resting heart rate, heart rate variability, skin temperature, blood oxygen levels, daily activity and sleep so users can better understand their overall health and wellness status and track their progress over time.
  • PERSONALIZED FOR YOUR GOALS: WHOOP is insight-driven, providing users with clear next steps and a science-backed approach so they can understand and improve their overall health and optimize performance. Track and log your daily behaviors like activity, diet, alcohol consumption, stress levels, caffeine intake and more with the WHOOP Journal. WHOOP then calculates which behaviors help or hurt your sleep and recovery most, making it easier to stick with healthy habits.
  • ON THE GO CHARGING: Get continuous data for days on a single charge with our waterproof* battery pack that enables you to charge on the go while you wear it.
  • COMMUNITY SUPPORT: WHOOP offers a supportive community of users, including professional athletes and fitness enthusiasts, who share their experiences and insights. This community provides users with inspiration and encouragement as they work to achieve their fitness and wellness goals. Additionally, WHOOP's community provides users with access to expert resources and guidance to help them optimize their health and wellness.

Brand: WHOOP


Material: Polyester


Color: Onyx


Compatible Devices: Smartphones, Tablets, Laptops


Team Name: WHOOP


Screen Size: 4 Inches


Product Dimensions: 1.1"L x 0.4"W x 7.1"H


Item Weight: 0.31 Pounds


Battery Life: 5 days


Sensor Type: Optical


Brand: ‎WHOOP


Material: ‎Polyester


Color: ‎Onyx


Compatible Devices: ‎Smartphones, Tablets, Laptops


Team Name: ‎WHOOP


Screen Size: ‎4 Inches


Product Dimensions: ‎1.1"L x 0.4"W x 7.1"H


Item Weight: ‎0.31 Pounds


Battery Life: ‎5 days


Sensor Type: ‎Optical


Battery Description: ‎Lithium-Ion Polymer


UPC: ‎810114360002


Manufacturer: ‎WHOOP


Item Package Dimensions L x W x H: ‎2.76 x 1.57 x 0.08 inches


Package Weight: ‎0.14 Kilograms


Item Dimensions LxWxH: ‎7.1 x 1.1 x 0.4 inches


Brand Name: ‎WHOOP


Warranty Description: ‎Lifetime warranty


Model Name: ‎4.0 Health & Fitness Tracker


Suggested Users: ‎Unisex-Adult


Part Number: ‎973-001-000


Included Components: ‎Initial 12-month WHOOP membership, 4.0 hardware, Onyx SuperKnit band, and wearable, waterproof* battery pack.


Sport Type: ‎Exercise & Fitness


Date First Available: March 14, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • So helpful!
Actually accurate step count, explanations of how much exercise you should do based on your recovery score. I love this band. The sleep information is priceless.
Reviewed in the United States on October 20, 2024 by Katie Hayden

  • Must have for physically active people
Set up was just a little bit puzzling (to me at least) but once we got it, everything was perfect. It’s part of my life now.
Reviewed in the United States on October 10, 2024 by Silvanna

  • Not Close to good.
**update 10/19 deducting yet another star. The device is basically worthless. Sad because it’s a good idea and is expensive. Did a 3 mile walk this morning to warm up. I’m 190# man. Walking a flat mile even at a somewhat leisurely pace costs my body 110-125Kcal. Wearing the whoop and my Apple Watch. Watch records 350 kcal burned. The whoop…123. Both set to “walking” worn on opposite wrists. 123 vs 350. The device is absolute garbage. Avoid it. ** update 9/12. Deducting another star I really wanted to love this device and maybe mine is just a lemon. The readings, specifically heart rate which is one of the only things I am really truly interested in are so far from accurate that the device is almost worthless. This is disappointing because the device is both expensive and has an expensive subscription associated with it. I did a hard workout again wearing both my Apple Watch and my WHOOP. Was 30 minute EMOM. Alternating rounds of 10 double unders And 15 Russian kettlebell swings at 80#. So at least for me a metabolically demanding workout. During the double unders Apple Watch has my heart rate pegged between 165 and 175 Which makes sense based on the activity and how I feel (like I’m sprinting). The average for the whole Apple device was just under 150 BPM. Conversely, the whoop worn on my other wrist Shows my heart rate during the double-unders at between 96 and 120 (Which again is moronic) And my heart rate for the overall workout at 127. Only after I started my cool down and my heart rate dropped did the Apple Watch and the WHOOP come into line. I wonder if the WHOOP is just too imprecise as a piece of hardware so when your heart rate is extremely fast it’s missing beats, I’m just theorizing but it’s disappointing in any event. The AI WHOOP support is also completely worthless. canned responses and useless troubleshooting pages. I don’t know what device to recommend, but if you’re serious about your data, this ain’t it **update 8/25. I wore my my Apple Watch Ultra and Whoop at the same time today (albeit Whoop on right arm Apple Watch on left) as discussed in the main review below. I set both devices to “functional strength” and then went about my work out. Main part of the work out was 30 minutes. During that time. The whoop registered 241 cals burned and an avg heart rate of 119. The Apple registered 327 cals burned and an average heart rate of 129. I also noticed that during certain periods of the session, the Apple registered my heart rate at 145 bpm and the Whoop 107. I’ve been an athlete my whole life I know what 107 feels like, and I know what 145 feels like. I also at that point timed my pulse and got 140. Not sure if the whoop reflects a high degree of latency (claims it doesn’t) but that reading is way way off. Could also account for the meaningful deviation in calories. I pinged the whoop chat bot to ask. It was useless. Offered a lot of semi science mumbo jumbo about strain calculations. I’m deducting another star. I work out daily. Have for the last decade and a half. When I was younger it was conditioning for various combat sports. Now that I’m in my 40s it’s conditioning for the combat sport that is life. I still get after it pretty hard every day, and in the last few years have become interested in tracking biometrics. It started with various Fitbit devices, which were super limited, moving up to the pretty good Garmin instinct solar, to The OK Apple Watch Ultra (you can find my review on here somewhere) And now the Whoop. The reason I wanted to move away from the Apple Watch is threefold (although candidly the device is deeply flawed in general). 1) It’s far too busy, too much going on, too many notifications too much buzzing 2) The battery life sucks (2.5 days max) and 3) I really like watches, actual watches, aesthetically I think the Apple Watch Ultra is just awful. The WHOOP checks all the boxes. It has no screen or buttons, it does not buzz. It is extremely minimalist. It is very lightweight And comfortable. Battery life is about a week, However, in a bit of pretty ingenious engineering, you don’t take it off to charge it. You charge a small battery pack That Whoop wears like a backpack on your wrist. So every few days I just slap that on after my workout the Whoop charges fully in a manner of minutes and we go about our day. The Whoop interface is ok. Its fine. I think there’s a lot of data in there and I’m just getting used to accessing it. I like that it’s sleep and recovery focused. Every day I get a grade for my sleep quality (usually not great) And a related grade level of “recovery” from yesterday. I don’t pretend to know the science behind the recovery statistics, however directionally they are in line with the way my body feels in the morning and throughout the day. The major flaw in the WHOOP design that I have encountered so far in its “strain” calculations. Once you wear the device for a few days It starts to make customize recommendations for how hard you should push yourself physically given your recovery level. That’s fine, Although I tend to just move through my schedule of splits and conditioning irrespective of what the Whoop says. What I have observed though, and it annoys me, is that the calorie calculations are way off relative to every other device I’ve ever used. For a given activity I think they’re probably 20 to 30% low relative to the Apple and 40% low relative to the Garmin. They’re also internally contradictory. Here is an example: today was a conditioning day. I did a pretty hard workout which consisted of timed sets of pull-ups, push-ups, and jump squats. It’s a 30 minute timer. You do seven pull-ups 15 push-ups and 20 squats per minute and then rest the next minute, etc. So you wind up doing the high volume of movements. And your heart rate is quite elevated. My Apple Watch records this session at a bit over 400 calories. My WHOOP records it at 258 calories. I’m not sure which is right, But I will say that the WHOOP has a “strain” score, which is roughly a measure of how hard your body is working during the exercise. Before the exercise “processed” my score 8.2, with a heart rate averaging in the 130s with peaks in the low 160s. When I finish the exercise and added in the movements as prompted by the WHOOP It recalculates the strain score to 16.8. Reflecting the work rate associated with the movements I was doing. So the strain increased to almost double to accommodate the amount of work done during the session. Why did the amount of calories calculated by the WHOOP not increase? Exertion requires thermodynamic energy; my strain went up because I was doing more work, work = energy output= calories. So that is a bit bit silly. Overall I’m still pretty happy and the actual numbers don’t matter, although little sloppy nits like this bother me. Maybe they’ll work it out in a future software release. ... show more
Reviewed in the United States on August 22, 2024 by JMA

  • Best wearable I’ve owned.
Readings are close to accurate and it’s way more durable than other wearables I’ve owned. I do wish the battery lasted a bit longer.
Reviewed in the United States on October 4, 2024 by Christian Sumphere

  • Whoop has improved my life!!!
I have been wearing the whoop for close to 2 years and have been able to make adjustments according to the information it’s gathered. I don’t have to wonder anymore if I slept ok, whether to rest or to get a workout in… it’s like my personal coach! I’m so thankful for Whoop!
Reviewed in the United States on November 1, 2024 by Kunde’s Kunde’s

  • Seems To Work
This is the first time I’ve ever had a smart device on my body. It seems to be pretty accurate as far as sleep and recovery goes. I wish it counted steps and I wish the app was a bit smarter when it comes to the activity I’m performing. Also, the charger is totally absurd. I took an international trip and forgot the charger. Didn’t have it for a week. It should be a cord. ... show more
Reviewed in the United States on August 18, 2024 by Mohamad Hussein

  • completely transformed how I approach my health and fitness goals
I recently got my hands on a Wearable Health, Fitness, and Activity Tracker, and I've been thrilled with the experience. This little device has completely transformed how I approach my health and fitness goals. First off, the design is sleek and comfortable to wear all day long. I hardly notice it on my wrist, which is perfect for someone like me who's always on the move. But it's not just about looks; this tracker packs a punch when it comes to functionality. It accurately monitors my daily steps, distance traveled, and calories burned, giving me a clear picture of my activity levels. Plus, it seamlessly tracks my sleep patterns, providing valuable insights into my sleep quality and helping me make adjustments for better rest. One of my favorite features is its ability to sync with my smartphone, allowing me to receive notifications for calls, messages, and reminders right on my wrist. It keeps me connected without having to constantly check my phone, which is a game-changer for staying focused and productive throughout the day. Overall, this Wearable Health, Fitness, and Activity Tracker has become an essential companion in my journey towards a healthier lifestyle. Whether I'm hitting the gym, going for a run, or simply trying to get a good night's sleep, it's there every step of the way, motivating me to stay active and mindful of my well-being. ... show more
Reviewed in the United States on March 7, 2024 by Always DIY

  • Overcomplicated, fails in every key aspect
The cool parts first since credit where credit is due. The whoop is very accurate at analyzing some parameters that other fitness trackers don’t do very well, HOWEVER they place wayyyy too much faith in their “strain” and “recovery” metrics which just in the three months I’ve had the band, have had nothing to do with how hard I’ve actually felt I was working out, nor how good I felt the next day. Additionally, no display whatsoever so it provides no utility even as a watch, and to be honest, maybe steps aren’t the most important metric, but it’s nice to know roughly how active I’ve been in a day and whoop doesn’t provide even that basic information anywhere. This might be a product geared at those really looking to optimize health and fitness in every way, but for what they charge versus what they provide it’s frankly insulting. I’ve never had a Fitbit as bad as this whoop, in fact, I enjoy not wearing any watch or fitness tracker more than the whoop. It’s also practically impossible to cancel, customer service is slow and inefficient, and there’s nothing special about the band itself which you can’t even use if you don’t keep paying the ridiculous subscription cost. Save your money, get a garmin or Fitbit ... show more
Reviewed in the United States on January 28, 2024 by LeMaster Tech

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