Feature: 100% brand new and high quality. Quantity: 1PC Waterproof Standard: IP54 Appearance material: Strap: Soft Sensor: Gravity acceleration sensor Battery: 90ma Lithium-ion polymer rechargeable battery Display: 0.49 inch OLED Charge:5V USB jackcharge by PC USB Watch Band Length:155mm-210mm Step count, distance, calorie consumption management, sleep management, time display, event reminders (water, medication, meetings, etc. Custom), call alerts,message alerts, clock display, sedentary reminder, vibration alarm, remote self-timer bell . Automatically sync data via Bluetooth 4.0 with Android 4.3 above smart phones (such as Galay S4,Galay Note3 etc.)and other IOS7.1 or above iphone Supported models: For iPhone 4S / 5 / 5C / 5S / 6 / 6P IOS6.1 above, Android 4.3 and above and Products Parameter Basic Parameter Equipment model M5S heart rate smart bracelet Compatible system Support Android 4.4 or above, IOS7.1 or above Bluetooth: bluetooth 4.0 Main function Pedometer, calorie consumption, distance calculation, sleep monitoring,with heart rate monitor function,remote camera control,find phone, anti lost reminder (mobile phone out of range, call reminder, caller ID,time display,silent vibration alarm Sensor Gsensor kx022-1020 Chipset Nordic nRF51822 Heart rate sensor Silicon labs Si1142 Vibration Yes waterproof dustproof Life waterproof, can't swim or bath Display Screen Screen size 0.49inch Screen type OLED Connection Parameter Bluetooth 4.0 BLElow power consumption Other Parameter Material front shell,Back shellPlasticwristbandsilicone Product size mainframe42x20.2x12.3mm,Wristband range155mm-210mm Net weight about 25g Color Screen displayblue, wristbandfluorescent green, navy, black Other features buttonone button Control modeButton control/Gesture control data storage7 days Battery type Lithium-ion battery Battery capacity 60 mAh Battery life 5-10 days Charging method 3 point contact charging Charging time 1-1.5 hours Package Content: 1PC Bluetooth Watch(With retail package) 1PC User Manual 1PC Instructions 1PC Charger