This open box  Fitbit Charge 2 Heart Rate + Fitness Tracker Wristband in small size and purple color is a versatile and sleek device designed for unisex adults. With its advanced features like heart rate monitoring, Bluetooth connectivity, and cadence tracking, this activity tracker is perfect for indoor and outdoor activities such as gym workouts, walking, pilates, and running. Made of stainless steel and plastic, this durable wristband also provides measurements in both decimal and imperial systems, making it a reliable tool for fitness enthusiasts looking to track their progress and improve their overall health and performance.