Number of Batteries: 1 Included: 1 Watch(es) Features: Digital Display, Alarm, Heart Rate Monitor, Pedometer, Customizable Watch Faces, Touch Screen Enabled, App Notifications, Rechargeable, Quick Ship Battery Type: Lithium Ion Jewelry Closure: Buckle Power Source: Battery (included) Tech Compatibility: Apple Ios, Android Tracking Capability: Heart Rate, Steps, Distance, Time, Activity Tracking, Calories Burned Watch Movement: Smart Watch Band Color: Black Dial Color: Multi-Color Case Thickness: 12mm Case Width: 23.4mm Watch Band Length: 9 1/2 Inch Band Content: Silicone Case Materials: 100% Metal Alloy Band Width: 18mm 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.