Keep track of your daily activity with the Withings Pulse O2 Activity Tracker. This black device is perfect for indoor and outdoor use, and is compatible with both iOS and Android operating systems. It features a variety of sensors, including SpO2 and accelerometer, to measure your heart rate, speed, distance, and calories burned. The tracker also has a rechargeable battery that can last up to 14 days on a single charge.

The Withings Pulse O2 Activity Tracker comes with a wide range of features, including wireless connectivity, temperature sensor, Bluetooth, hip clip, stopwatch, cadence, clock, and more. It also allows you to set goals, review your exercise data, and track your sleep. This unisex tracker is made with high-quality materials such as aluminum and plastic, and is designed to fit comfortably on your wrist. Whether you're into gym & training, yoga, or running & jogging, this activity tracker is perfect for anyone looking to keep track of their fitness goals.