Xiaomi Mi Band 3: Smart Wristband, with Magnetic Snap Charge, OLED Display Touchpad, 50m Waterproof, Fitness Tracker, Heart Rate Monitor

Quick Overview

WeChat messages, QQ messages, WhatsApp, Facebook, incoming calls, etc. are all displayed directly onto the screen |
Swimming in water up to 50 meters deep, and view activity tracking data by simply raising your wrist
Heart rate, sleep quality, step count, and health management | Battery life of up to 20 days