From the open box:

Specifications:
Type: Dual Bluetooth smart sports watch
Design: pointer smart watch
Main screen size: 1.2 inches perforated full circular screen
Main screen resolution: 240*240
Data service: Bluetooth 4.0, Bluetooth 3.0
Button type: 3 side buttons
Operating system: based on Android OS v5.1 and IOS system 8.0
CPU frequency: MT2523
Memory: 4MB+4MB
Battery: 260mAh built-in battery
Sensor: 3G Sensor

Product Information