Sell M4 Color Screen Waterproof Bluetooth SmartBand Heart Rate Sleep Tracker Monitor Smartwatch best price

M4 Features: 100% brand new and high quality 0.96inch IPS color screen display, clear to see even under sunlight 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 cell phone. Life waterproof: IP67 ,can wash hands, wear in the rain boots, it better not swim Large Battery built in, super-long standby up to about 15days, work for 7days, quick to charge for 2hours(USB charging, USB cable included) Bracelet band is replaceable Soft TFU bracelet, quite skin-friendly and comfortable Smart Life asistant to help you a lot Specifications: Specification: Total Length: 235mm Band Width: 22mm Main Unit Size: 4.1cm * 1.2cm * 1.9cm(Length x Height x Width) Bracelet material: ABS, main body cover PC, buckle TPU Battery capacity: 80 mAh Battery Type: lithium polymer battery Display screen: 0.96 HD IPS color screen FTF process, single point touch button Bluetooth: 4.0 System Requirements: Android 4.3 or IOS8.0 or higher mobile phones supporting Bluetooth 4.0 Color: Black Red Blue Package Included: 1 * Smart bracelet