1. DYNAMIC HEART RATE ,BP & Blood Oxygen : The OPTA Band supports a fully automatic heart rate monitor that keeps track of your heart rate around the clock. It provides you with valuable information which lets you optimise your upcoming workouts . Note- this data is only for your reference to adjust your exercise and not for medical purposes. 2. ALL DAY ACTIVITY TRACKER: whether you're into Walking, cycling - the OPTA Band will follow you anywhere you go. Built-in activities data support for walking, cycling,football,basketball,PingPong,Climbing and badminton. 3. FITNESS & OTHER FEATURES: Additionally, the OPTA Band comes with these features - heart rate monitoring, pedometer, calories record, sleep quality monitoring, weather ,sync date and time, sms notifications,Remote Camera(including Facebook, twitter, Instagram,we chat etc), remote camera etc 4. APP / PHONE SYNC (Fundo App): When paired with your smartphone through Bluetooth, this fitness tracker provides you with incoming call notifications to make sure you'll never miss out on an important message again. Also, this tracker is compatible with Android 4.4 and Above For iOS 9 and Above. Bluetooth 4.0 BLE. 5.STANDBY TIME: Built-in 90mah Lithium-ion polymer rechargeable battery,can be used about 10 days.This smart bracelet you could charge it with 5V USB jack or charged by a PC host comes with a standard USB port, easy to get charged through PC or mobile driver.Please refer to the User Manual before use.