The used Fitbit Flex 2 Black Fitness Wristband Activity Tracker is a versatile and durable device designed for both indoor and outdoor activities. With a sleek black design, this activity tracker from Fitbit offers a range of features including Bluetooth connectivity, alarm, calorie monitor, and more. It has a battery life of up to 5 days and provides measurements for speed, time, calories, and distance. The wristband is made of plastic and is suitable for unisex adults. With a 1-month manufacturer warranty, this activity tracker is perfect for those looking to track their fitness progress accurately and efficiently.
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