Number of Batteries: 1 Features: App Download Required, Touch Screen Enabled, App Notifications, On Watch Workout, Receives Texts, Customizable Watch Faces, Batteries Included, Smartphone Compatible, Sleep Tracker, Wear Resistant, Heart Rate Monitor, Stopwatch, Alarm, Bluetooth Compatible, Backlight Display, Receives Calls, Rechargeable, Date Function, Quick Ship Battery Type: Rechargeable Jewelry Closure: Buckle Power Source: Battery (included) Tech Compatibility: Android, Apple Ios Tracking Capability: Calories Burned, Activity Tracking, Heart Rate, Distance, Steps Watch Movement: Smart Watch Band Color: Purple Dial Color: Multi-Color Metal Color: Rose Tone Case Thickness: 10mm Case Width: 34.1mm 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.