Big Sale! Aoson S1 Bluetooth Smartband Waistband Peodometer Bracelet Fitness Sleep Tracker Healthy Monitor Color Black

Feature:
Tracks steps, distance, calories burned and active minutes.
Be the first smart wrist band with OLED screen.
Vibration: Wakes you (and not your partner) with a silent wake alarm.
Water resistance, IP67.
Charging with the USB.
Appearance size: 69.1mm X 15.8mm X 11.2mm
Material:ABS+TPE(human skin no allergic)
Battery capacity:40mah
Bluetooth 4.0
Copatiable for Android 4.3,Android 4.4