The FitBit ZIP FB301 Wireless Fitness Activity Tracker is a versatile device designed for indoor and outdoor activities. With its black color and compact one-size design, this activity tracker is perfect for tracking heart rate, speed, time, calories, and distance. It features an accelerometer and GPS sensor for accurate measurements, and is compatible with various operating systems including Windows, iOS, macOS, and Android. The FitBit ZIP also boasts a variety of features such as multi-sport capabilities, wireless connectivity, Bluetooth compatibility, and a hip clip for easy carrying. Ideal for gym workouts, weightlifting, yoga, and running, this activity tracker provides a comprehensive fitness experience.

Very nice condition, works. Battery will be included but not installed as there's no way to turn it off.