. System requirements: android5.0+ / ios10.0+
· Main control chip: BT8918B
· Call Bluetooth: support
· Bluetooth version: 4.0/5.0
· Heart rate sensor: support
· Screen display: 1.99 inch
· Charging interface: wireless charging
· Sensor: G-sensor 3-axis
· Local watch face: 5+
· Dial market: 50+
· Menu Styles: 5