Brand | WHOOP |
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Color | Onyx |
Compatible Devices | Smartphones, Tablets, Laptops, Desktops |
Screen Size | 4 Inches |
Product Dimensions | 1.1"L x 0.4"W x 7.1"H |
Battery Life | 5 days |
Sensor Type | Wearable |
Battery Description | Lithium-Ion |
UPC | 810114360002 |
Manufacturer | WHOOP |
Item Package Dimensions L x W x H | 8.66 x 2.56 x 1.57 inches |
Package Weight | 0.13 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 |
Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- Buy a lot of stuff on Amazon? Tons of items eligible for coverage, from the latest tech like laptops, game consoles, TVs, phones, and cameras to major appliances, sporting goods, tools, toys, mattresses, personal care, furniture, and more.
- Accidents happen. That’s why for your portable products we cover accidental damage from handling such as drops, spills and cracked screens. We also cover electrical and mechanical malfunctions,power surges, and wear and tear.
- Past and future purchases covered. 30 days after you are enrolled,all eligible past purchases (up to 1 year prior to enrollment) and future eligible purchases made on Amazon will be covered by your plan as long as you are enrolled.
- Fast, easy claims. Frustration-free claims, with most filed in minutes. We will fix it, replace it, or reimburse you with an Amazon e-gift card for the purchase price of your product (excluding tax).File at Asurion.com/amazon.
- No hidden fees.For just $16.99 a month + tax you’re covered for up to $5,000 in claims per 12-month period. *THIS PROGRAM IS MONTH-TO-MONTH AND WILL CONTINUE UNTIL CANCELED* Coverage for all products ends 30 days after the plan is canceled. Cancel any time.
Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.
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Buy new:
$239.00$239.00
Ships from: Amazon Sold by: WHOOP AUTHORIZED
Save with Used - Like New
$209.99$209.99
FREE delivery August 6 - 7
Ships from: STRAP AUTHORIZED Sold by: STRAP AUTHORIZED
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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
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Purchase options and add-ons
Brand | WHOOP |
Color | Onyx |
Compatible Devices | Smartphones, Tablets, Laptops, Desktops |
Screen Size | 4 Inches |
Product Dimensions | 1.1"L x 0.4"W x 7.1"H |
Battery Life | 5 days |
Sensor Type | Wearable |
Battery Description | Lithium-Ion |
UPC | 810114360002 |
Manufacturer | WHOOP |
About this item
- 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.
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From the brand
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UNLOCK YOURSELF WITH WHOOP
Optimize your health, fitness, and life with the world’s most advanced wearable.
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TRACKS EVERYTHING
Track your sleep, strain, stress, recovery, and more – on a high-powered device you’ll forget you’re even wearing.
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INFINITE INSIGHTS
Get the data and insights you need to unlock your full potential — all with one less screen.
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140+ HABITS TO TRACK
Find the habits that work for you and build your best routine with the world’s most advanced wearable.
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NEVER ON A CHARGER
With a waterproof, wireless battery pack, charge your WHOOP without ever removing it — so you don’t miss a single second of data.
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We’re revolutionizing the way that people understand their bodies. WHOOP provides unprecedented visibility into the relationship between physiology and performance, helping people reach their highest potential physically, mentally, and emotionally.
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Who founded WHOOP?
Our founder, Will Ahmed, was a collegiate athlete who wanted to know how training was impacting his body. After reading 500 medical papers, the research revealed that monitoring key metrics 24/7 did more than just optimize training— it could help you feel better, perform better, and live better.
What makes WHOOP different?
WHOOP only measures the metrics scientifically proven to make a significant impact on your physical and mental health. WHOOP delivers over 99% heart rate and HRV tracking accuracy and gold-standard sleep tracking.
Product Description
![the only wearable focused on science backed metrics](https://m.media-amazon.com/images/S/aplus-media-library-service-media/bde00ebe-eca4-4fce-957d-02ebcde2e235.__CR0,0,1464,600_PT0_SX1464_V1___.png)
What is included with my purchase?
Your purchase includes the WHOOP 4.0 device with Onyx SuperKnit band, a waterproof and wireless battery charger and charging cable, as well as a 12-month WHOOP membership and access to the WHOOP app.
Why do I need to enter a credit card to activate my membership when I've already paid?
Your purchase includes your upfront 12-month membership, you will not be charged during activation. At the end of the 12-months, you will have the opportunity to renew/extend your membership directly with WHOOP membership services.
What if my packaging looks different than the packaging in the description?
All genuine WHOOP 4.0 products come in retail-specific packaging as pictured above with the 12-month membership noted on the back of the box. If the box received is different, the inclusion of a 12-month membership with the product is not guaranteed.
I just received my WHOOP 4.0, how do I charge my WHOOP for set up?
Plug your battery pack into a power source using your WHOOP-provided USB-C cord. Your battery pack is fully charged, the LED turns green. Once the battery pack is fully charged, slide it over the WHOOP 4.0 to charge the sensor before set up.
I'm having issues with my WHOOP 4.0, who can I reach out to?
You can reach out to our Membership Services team regarding any hardware or subscription issues. They can be reached 24/7 on the WHOOP app or via support on the WHOOP website. Please reach out to Amazon directly for any issues with shipping or return
Shop WHOOP
![]() SuperKnit Band | ![]() Ivy & Gold SuperKnit Luxe Band | ![]() Battery Pack |
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For Performance and ProfessionEngineered with an ultra-soft backing and microfilament yarn. | For Everyday WearEngineered with an ultra-soft backing and micro filament yarn. | On the Go ChargingGet continuous data for days on a single charge. |
Designed for DurabilityDesigned with a durable, stainless steel clasp. | A Premium LookDesigned with precious metals for a premium look. | WaterproofCharge on the go while you wear it, without worrying about it getting wet. |
Product information
Technical Details
Additional Information
ASIN | B0BWSF6H4Q |
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Customer Reviews |
4.0 out of 5 stars |
Best Sellers Rank | #438 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #3 in Activity & Fitness Trackers |
Date First Available | March 14, 2023 |
Feedback
Videos
Videos for this product
1:16
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BEFORE you get your Whoop Strap WATCH THIS!
Allie’s Honest Reviews
Videos for this product
1:22
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D1 summer soccer fitness workout #soccer
Brittany Wilson Isenhour
Videos for this product
1:58
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Customer Review: Unlock your Potential with Whoop Band
Megan
Videos for this product
3:48
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Whoop 4 vs Apple Watch Ultra Sleep Tracking Comparison
Mack Robertson
Videos for this product
1:09
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Should YOU Buy This WHOOP 4.0 Device?
VNP | Very Normal People!
Looking for specific info?
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the accuracy and comfort of the biometric monitor. For example, they say it provides the right data at the right time to assist with achieving their goals. They like that it's comfortable to wear all day long and that it is a convenient wearable device. That said, some complain about the ease of use and battery life. They say it'll stop working after 3 months and that the troubleshooting guide is not helpful. Customers also have issues with charging, and appearance. Opinions are mixed on value.
AI-generated from the text of customer reviews
Customers like the accuracy of the biometric monitor. They say it provides the right data at the right time to assist with achieving their fitness goals. They also say the product is amazing for collecting data and tracking your calories. Customers also appreciate the detailed insights and helpful hints. They mention that the app is pretty good and gives detailed insights. They appreciate the great activity detection that makes it easy to see performance for both.
"...It’s really helpful for me to know my goals and how my recovery needs are being met.I’m hooked!..." Read more
"...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..." Read more
"...They sent me a new sensor and battery, and both work perfectly! I am changing my review from 1-star to 5 because I love my Whoop now!..." Read more
"...The only drawback is that it refuses to track steps at all--which is something most 3rd party health apps still rely on for calorie deductions." Read more
Customers like the comfort of the biometric monitor. They say the design is sleek, comfortable, and easy to wear 24/7. They also appreciate that it's convenient and wearable device that lasts for days. Customers also mention that it is not as intrusive on the wrist as a smart watch.
"...It fits nicely on my wrist very comfortable to wear all day long. It is waterproof so that’s great." Read more
"...First off, the design is sleek and comfortable to wear all day long...." Read more
"...This has really helped me learn more about body and helped me get more fit and health. Worth the money and easy to use!" Read more
"The band feels very comfortable and you can shower with it on. Baytety life is great!What it lacks is the the app...." Read more
Customers are satisfied with the quality of the biometric monitor. They mention that it's well-designed, and well-thought-out. The hardware is great, and it exceeds all expectations.
"...I loved seeing how my daily activity affected my sleep. Great product and I’ll buy it again!" Read more
"...your raw metrics/data the basic subscription is decent and the hardware is great just wish the replacement bands weren’t overpriced." Read more
"Great quality" Read more
"...for a Christmas gift for a family member and it came very fast and very nicely" Read more
Customers are mixed about the value of the biometric monitor. Some mention it's worth the money, while others say it'll never be worth the cost. The basic subscription is decent and the hardware is great. However, some customers feel the subscription fees are higher than their competitors. The advertising for this thing sucks and the subscription plan is bogus.
"...subscription as advertised, I will be returning as this is an expensive membership and not a company practice that I would like to do business..." Read more
"...Worth the money and easy to use!" Read more
"...I think this is the one. It is a little expensive after the first year with the monthly bill but there’s a real accurate set of data given about you..." Read more
"...No money wasted at all. It actually amazes me what it picks up. I forgot to set my activity the other day and it recognized that I was golfing...." Read more
Customers find the biometric monitor frustrating to use, with clunky and complicated instructions. They say the troubleshooting guide is not helpful and the journal entries are extremely laborious. Customers also say the product doesn't explain or justify its methods and provides very little helpful information.
"Does anyone else hate the bands and how stupid they are to install?..." Read more
"...For me, I thought the band was very challenging to take on and off and keep set at the correct tightness. This device also doesn’t measure steps.." Read more
"...Everything is collected and tracked in the easy to use Whoop app...." Read more
"...What it lacks is the the app. It doesn't show much of anything for the first 4 weeks, meaning you have to invest a lot of time before yiu get..." Read more
Customers are dissatisfied with the battery life of the biometric monitor. They mention that it stops working after 2 weeks, the charge never holds, and the band only lasted one week of use. Some customers also report issues with the charging port and battery pack.
"...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..." Read more
"...that the sensor shows that it is charging, but the percentage of charge keeps dropping until the battery dies...." Read more
"...Purchased a new Whoop but it appears to be dead. Followed the instructions in the box to charge the watch but didn’t have any luck...." Read more
"The band feels very comfortable and you can shower with it on. Baytety life is great!What it lacks is the the app...." Read more
Customers are dissatisfied with the appearance of the biometric monitor. They mention that the product is poorly designed, has poor quality hardware, and has a cheap plastic U piece that folds over and holds the band in. Some customers also say that the bracelet and charge design are poor and not practical.
"...also practically impossible to cancel, customer service is slow and inefficient, and there’s nothing special about the band itself which you can’t..." Read more
"...Kind of scammy. I'm full out on Whoop." Read more
"...First off, the design is sleek and comfortable to wear all day long...." Read more
"...I am not interested in a watch. The ONLY con is the cheap plastic U piece that folds over and holds the band in place. WHY?..." Read more
Customers are dissatisfied with the charging of the biometric monitor. They mention that the charging hub didn't power, the band sensor refused to charge, and the external battery pack never charged above 80%. Some say that the app to phone was buggy.
"...Original review:The battery pack will not charge the sensor unless I remove the band - see the attached picture showing that the sensor shows..." Read more
"...experience what some dissatisfied people have, but here I am having charging issues...." Read more
"...Fast forward to 9/27. The device will not charge...." Read more
"...Mine was dead after 4 days and would not charge. Customer Support is all via email so it is slow. Terrible company" Read more
Reviews with images
![Health monitor](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/transparent-pixel._V192234675_.gif)
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Top reviews
Top reviews from the United States
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I’m hooked!
Only get this if you are serious in knowing what you need.
Customer service was slow to respond, but they finally made it right. They sent me a new sensor and battery, and both work perfectly! I am changing my review from 1-star to 5 because I love my Whoop now!
Original review:
The battery pack will not charge the sensor unless I remove the band - see the attached picture showing that the sensor shows that it is charging, but the percentage of charge keeps dropping until the battery dies. I tried contacting customer service, but trying to resolve the issue with them is beyond frustrating. Customer service replied to my emails just once a day at best, and each time it was from a different agent that clearly did not read the history of troubleshooting already done. The only way I can charge the sensor is to remove the band, which is not the way it's supposed to be used (you're supposed to be able to wear it while it's charging), but customer service seems satisfied with that solution. Count me extremely disappointed.
![Customer image](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/transparent-pixel._V192234675_.gif)
Reviewed in the United States on March 13, 2024
Customer service was slow to respond, but they finally made it right. They sent me a new sensor and battery, and both work perfectly! I am changing my review from 1-star to 5 because I love my Whoop now!
Original review:
The battery pack will not charge the sensor unless I remove the band - see the attached picture showing that the sensor shows that it is charging, but the percentage of charge keeps dropping until the battery dies. I tried contacting customer service, but trying to resolve the issue with them is beyond frustrating. Customer service replied to my emails just once a day at best, and each time it was from a different agent that clearly did not read the history of troubleshooting already done. The only way I can charge the sensor is to remove the band, which is not the way it's supposed to be used (you're supposed to be able to wear it while it's charging), but customer service seems satisfied with that solution. Count me extremely disappointed.
![Customer image](https://m.media-amazon.com/images/I/21M03LvyiWL._SY88.jpg)
![Customer image](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/transparent-pixel._V192234675_.gif)
![Customer image](https://m.media-amazon.com/images/I/613NN0SAoCL._SY88.jpg)
I compared it to my Garmin watch which I wear continuously on my other wrist and it is always quite off by sometimes as much as 20 bpm more (or less) than the Garmin. I did also the exercise on purpose with my Fitbit which I had stopped wearing to use the Whoop and same result: the Whoop is always pretty off by a considerable difference in bpm.
I voluntarily did the exercise several times to compare the Fitbit with the Garmin and they are synced like a charm, hardly a couple of bpm difference between them or a second or 2 of delays between them. The Whoop issue is a whole other level!
I unfortunately missed the support window of 3 months which I was not aware of until i finally decided I need to get in touch with the seller for a solution... Overall pretty disappointed with my experience, and although I had heard some good opinion about it, there are not much people in KSA that are also wearing one to compare... not sure what I can do anymore about it.
Top reviews from other countries
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Ich befinde mich aktuell noch in der Kalibrierungsphase, trotzdem gibt mir die App schon rechte gute Einblicke und ist sehr umfangreich, wenn auch etwas unübersichtlich.
Das Band trägt sich recht angenehm, vorallem das es aber keine Display oder sonstige Interaktionsmöglichkeit hat empfinde ich als positiv. So kommt man nicht ständig in Versuchung, etwas darauf zu tun. Parallel dazu trage ich auch noch eine Huawei SmartWatch, welche ich nun aber immer öfter ablegen (kann).
Der größte negative Punkt ist aber, dass ich im Schichtdienst arbeite und mir einmal mehr vor Augen geführt wird, wie unregelmäßig und wenig Schlaf ich phasenweise bekomme (wofür das Whoop aber natürlich nichts kann).
Schön wäre es auch noch, wenn man in der App die Herzfrequenz in Echtzeit in einem Diagramm anzeigen lassen kann. Leider geht das nur während einer Aktivität, zumindest laut meinem jetzigen Wissensstand.
In der App sind auch unzählige Übungen integriert.
Insgesamt ist der Preis für das Abonnement schon happig, mit allem was aber geboten wird empfinde ich ihn als gerade noch angemessen.
Der Preis für das Zubehör ist aber definitiv zu hoch, 50€ für ein Armband ist schon extrem.
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