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The Fitbit Flex Wireless Activity + Sleep Wristband is a water-resistant fitness tracker that records steps, distance, stairs climbed, calories burned, and quality of sleep and wirelessly syncs its data to Android and iOS devices over Bluetooth 4.0. The Flex syncs to PCs using the included Bluetooth 4.0 USB dongle and integrates with Fitbit's mobile app as well as other mobile fitness apps. Description |
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