The Fitbit One Wireless Activity Sleep Tracker in black is a sleek and versatile device designed for both indoor and outdoor use. Powered by batteries with a battery life of up to 7 days, this activity tracker accurately measures your movements in both decimal and imperial systems. Made of durable plastic, it is easy to wear on your wrist and comes equipped with features such as wireless connectivity and sleep tracking. Specifically designed for running and jogging, this Fitbit One model is perfect for unisex adults looking to monitor their fitness progress in English-speaking environments.
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