Mi Band 2 Smart Watch 0.42 Inch OLED Smartband /w Heart Rate Monitor Waterproof

Mi Band 2 is a smart watch bracelet for you, especially for sports lovers!
Do you know how many steps you take, how many calories you consume, and how far you run? Don't worry, when you wear the bracelet to do exercise, such as running, climbing, all these data can be synchronized and analyzed on your mobile phone which helps you plan your exercise time and amount more reasonably. It comes with TPU adjustable wristband, giving you a skin-friendly, breathable feeling. When you sleep, it will monitor your sleep. It can also wake you up by vibrating gently.