Product Description

Fitbit Charge Wireless Activity + Sleep Tracker Wristband, Black, Large Type: Fitness Band Color: Black Features: All-Day Activity Track steps, distance, calories burned, floors climbed & active minutes Watch + Display See daily stats, time of day & Exercise Mode on the OLED display Caller ID See call notification on display with compatible mobile devices Long Battery Life Lasts longer than competing trackers with a battery life of 7-10 days Auto Sleep + Alarms Monitor your sleep automatically & set a silent alarm Wireless Syncing Sync stats wirelessly & automatically to leading smartphones and computers Power Source: Lithium-ion Battery Battery Life: Battery life: up to 7 - 10 days Battery type: Lithium-polymer Charge time: One to two hours Radio transceiver: Bluetooth low energy Operating Environment: Operating temperature: -4e to 113e F Maximum operating altitut...