Active Pro Bluetooth Digital Watch *Android mobile phone system must be more than Android 4.3; Android mobile phone's Bluetooth must be more than 4.0 version**Apple mobile phones must be more than iPhone 4S **Measurement results of this product are for reference only, not for medical use. - Bluetooth ON/OFF Control - 8-Digit LCD Display, week, hour, minute, second display: Press S3, month, date display (connected to mobile phone, synchronous time display) - 12/24 Hour - Pedometer/distance detection (data can be updated to mobile phone) - Sport Data sharing - Notification reminder - Alarm Clock - Chronograph - EL Backlight - Plastic Case - PU Band