Digital M4 Fitness Smart Watch

M4 smart band fitness tracker watch 1. Made of high-quality materials, comfortable to wear, no binding, color display, clearer. 2. It has many functions such as health detection, monitoring sleep, information prompting, and waterproofing. Power on: long press function key features: *sports and health: sports step (3d sensor), calorie consumption, exercise distance, pedometer *support dynamic heart rate, blood pressure, blood oxygen monitoring, *support call reminder and message reminder *remote camera function: shake it to take photos after bluetooth connection like a remote camera shutter for your phone. *life waterproof: ip67 ,can wash hands, wear in the rain, but it better not swim *bracelet band is replaceable *bluetooth 4.0, compatible with android 4.4 and above system, ios 8.5 and above system. Package included: 1 * smart bracelet 1 * chinese / english manual 1 * usb charging cable 1 * retail box