Health, Fitness & Activity Tracker – Continuous Monitoring, Performance Optimiza

UNLOCK YOURSELF WITH WHOOP
Optimize your health, fitness, and life with the world's most advanced wearable.
REACH YOUR POTENTIAL

TRACKS EVERYTHING
Track your sleep, strain, stress, recovery, and more – on a high-powered device you'll forget you're even wearing.

INFINITE INSIGHTS
Get the data and insights you need to unlock your full potential - all with one less screen.

140+ HABITS TO TRACK
Find the habits that work for you and build your best routine with the world's most advanced wearable.

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.

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.
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 video showcases the product in use. The video guides you through product setup. The video compares multiple products. The video shows the product being unpacked.

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
For Performance and Profession
Engineered with an ultra-soft backing and microfilament yarn.
For Everyday Wear
Engineered with an ultra-soft backing and micro filament yarn.
On the Go Charging
Get continuous data for days on a single charge.
Designed for Durability
Designed with a durable, stainless steel clasp.
A Premium Look
Designed with precious metals for a premium look.
Waterproof
Charge on the go while you wear it, without worrying about it getting wet.