OPTA OPTA SB-130 Bluetooth Smart Watch Smartwatch  (Black Strap, Free Size)

TRIPLE GPS POSITIONING & MULTI SPORTS MODES: The OPTA Band features multiple functions in life, especially in its smart monitoring for sports and health. It has 5 built-in sports modes and the built in GPS+GLONASS+BEIDOU triple-satellite positioning system, which can precisely track your sports activities and tell you the calories that have been burned. FITNESS & OTHER FEATURES:Follow your fitness.Track walks, runs, rides, heart rate and strength training. Measure your heart rate even stream music right from your wrist, receive real-time notifications from all of your favourite mobile apps such as text messages,email,Facebook,Twitter etc. APP / PHONE SYNC (HPLUS 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 8 and Above. Bluetooth 4.2 BLE. USB CHARGING & LONG STANDBY TIME :The OPTA Band comes with USB charger that needs to be connected to the device of USB charging port. Just charge it for 120 minutes and it will provide enough juice for 10-15 days letting you use it through multiple days without needing to worry about running out of power.The battery life and charging cycles depend on the use,situation,settings and many other factors.