[Premium Material]: This smart bracelet watchband is made of softer, durable, environmental top TPSIV with high grade aluminum buckle. Bracelet watch head is top quality ABS shell material.
[For IOS or Android smart phone]: Bluetooth 4.0, suitable for Android 4.3 or higher devices and iOS 7 or above devices.
Smart wristband with OLED screen, in addition to outside show time date, calls vibration to remind, it also have function such as step gauge, distance, calorie consumption management; can test Static and Static/dynamic heart rate and accuracy can up to 96%
Bluetooth 4.0 use the latest Ceramic Chip Antenna.Signal is more stable and reception distance can reach 40ft-50ft.