SEALED & NEW!!

***12 Month Membership Included!***

The Whoop 4.0 Activity Tracker with Black Onyx Band is a high-quality fitness technology product designed for unisex adults. It features advanced measurement capabilities such as heart rate, respiratory rate, blood oxygen, calories, and skin temperature. With a waterproof design and up to 1 day battery life, this activity tracker is perfect for running and jogging activities. The sleek black design and durable onyx superknit material make it a stylish and reliable choice for 24/7 wear. Additionally, the included battery pack and wireless charging feature add convenience to your fitness routine.