The Fitbit One FB103 Wireless Activity & Sleep Tracker in Black is a versatile fitness technology device designed to track your activity and sleep patterns. With features like wireless connectivity, Bluetooth capability, and a rechargeable battery, it allows you to set goals, review data, and monitor your calories and water resistance. The device is perfect for various activities such as gym training, walking, yoga, pilates, and general fitness. Made of plastic, the Fitbit One also includes a GPS sensor for accurate tracking of your workouts. Additionally, it provides an alarm and pedometer to help you stay on top of your fitness routine.
eBay