D18 Heart Rate Blood Pressure Smartwatch Color Screen Fitness Tracker Smart Watch IP65 Waterproof

Material: TP/ front frame/cover, plastic.
Wrist strap material: TPU.
Display specifications: 1.3 inch.
Color:show as pictures.
Button: Single-point touch button.
Bluetooth version: Bluetooth 4.0.
Waterproof: IP65.
Battery: 90mAh battery.
Endurance time: Working for over one week, standby for over 2 weeks.
Charging method: USB interface charging.
Compatible system: Above replacement for Android 4.4 and replacement for IOS 8.0.