The Fitbit Versa 2 Wristband Activity Tracker in Black (FB507BKBK) is a versatile and reliable fitness technology device for unisex adults. With a battery life of up to 6 days and a variety of sensors including Infrared, SpO2, and Optical Bio-Tracking, it provides accurate measurements for heart rate and time, making it ideal for indoor and outdoor activities such as gym workouts and running. Its sleek design featuring a 1.34-inch display and a comfortable aluminum and silicone construction, along with Bluetooth connectivity and support for both iOS and Android operating systems, makes it a convenient and efficient tool for tracking and improving your fitness levels. 5771
eBay