Number of Batteries: 1 Included: 1 Watch(es) Features: Pedometer, Digital Display, App Notifications, Touch Screen Enabled, Customizable Watch Faces, Stopwatch, Alarm, Date Function, Rechargeable, Quick Ship Battery Type: Lithium Ion Jewelry Closure: Buckle Power Source: Battery (included) Tech Compatibility: Android, Apple Ios Tracking Capability: Distance, Steps, Calories Burned, Activity Tracking, Sleep Quality, Time Watch Movement: Smart Watch Water Resistance: 30m Band Color: Black Dial Color: Black Metal Color: Silver Tone Case Thickness: 12mm Case Width: 43mm Watch Band Length: 9 1/2 Inch Band Content: Silicone Case Materials: 100% Metal Alloy Band Width: 20mm Care: Wipe Clean Country of Origin: Imported Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.