Introducing the WHOOP 4.0 activity tracker, the perfect companion for fitness enthusiasts. This wearable device is designed to track your activity levels, sleep patterns, and overall health. With its sleek onyx color and lightweight design, it's perfect for both indoor and outdoor activities, including running and jogging.

The WHOOP 4.0 comes with a 12-month subscription and features a clock and calorie monitor, making it an essential tool for anyone looking to track their fitness goals. Its powerful batteries ensure long-lasting performance, while its compact size of 8.7x3.62x1.77 inches makes it easy to carry around. Get your hands on the WHOOP 4.0 today and take your fitness game to the next level.