Sabuy Smart Bracelet Fitness Tracker Bluetooth Smart band Heart Rate Monitor Wrist Band Wrap with Pedometer for Android IOS, DONE6 S CPU choose Dialog, Bluetooth 4, Full power about 7 days at a time MULTIFUNCTION: Standard Sports Function(steps,distance,calories);Sleep detect,This band can monitor your sleep time and let you know your sleep quality;Monitor the Heart rate(remember:for reference only,this band can not replace medical equipment);When an incoming call or message band vibrationPush message;sedentary(IOS fixed one hour); SHARE information and make your life easier: You can Synchronize your Bluetooth data to mobile phone applications, motion data can be kept for 7 days.There is only one key to cut screen ,very convenient;Anti-lost reminder and phone out of range alerts;Smart unlock;Smart alarm clock;Shake photograph;Sports goal setting ,alarm reminder, reminder, remind a sedentary activity;Firmware Upgrade;Synchronous data. GREAT MATERIAL: Wrist clasp material:Aluminum alloy and Wrist strap material is TPU/siliconewaterproof grade IP57Its Working temperature:-20-50;Adjustable length:157mm-205mm. COMPATIBLE FOR: mobile phone operating system Android 4.3 and above (Samsung Galaxy S4, Galaxy Note3 and the latest models) or iOS 7 and above (iphone4s and above)