Keep fit and keep track of your fitness with the Fitbit Charge Black XL. This amazing wrist band keeps track of steps, distance, calories burned, floors climbed, active minutes and even sleep. The Fitbit Charge displays your daily stats and the time of day. It monitors your sleep and wakes you up with a silent alarm. The Fitbit Charge includes a tracker, charging cable and wireless sync dongle. In addition to all of this, you also get caller ID. Real Progressin Real TimeSee every step as it happens–right on your wrist, with a bright OLED display. Check your workout stats using Exercise Mode, or just find the inspiration to beat your next goal. Ready Whenlife CallsBuilt with Caller ID, Charge shows your incoming calls when your phone is nearby to help you take control of your day and your schedule. Goodnight-Sleep RightSleep better and live well by using Charge to automatically track your sleep at night, then review your trends on the dashboard. To make mornings easier, set a silent, vibrating alarm and wake more peacefully. See Your Progress-Stay on TrackBy automatically and wirelessly syncing your stats to your computer and over 120 leading smartphones, Charge lets you see your progress on-the go, and shows you detailed charts and graphs so you can track your trends over time. Features All-Day Activity tracker Watch + Display Auto Sleep + Alarms Wireless Syncing Caller ID