Feature: 100% brand new and high quality. Quantity: 1PC Model: TW07 Waterproof Standard: IP-X6 Appearance Material: front &after shell: all-aluminum， hand strap: Soft rubber Main chip: Quintic QN9021 Bluetooth chip: Quintic QN9021 support: Android phone APK / ios APP Supported models: iPhone 4S / 5 / 5C / 5S / 6 / 6P IOS7.0 above， Android 4.3 and above Note: (IOS system does not support calls and message alerts) Bluetooth version: 4.0BLE (low-power) Memory: 64KB RAM + 64KB ROM Sensor: Gravity acceleration sensor Battery: 301425 PCB Size: 34.6 * 14.5 * 0.8 Display: OLED64 * 32 Power: 3-4 days for normal usePackage Content: 1PC Bluetooth Watch(With retail package) 1PC User Manual