Specification: Chip: SI-BW03. Bluetooth Version: BT 4.0 or above. Battery Mode: CR2430. Battery Capacity: 290mAh. Using Time: about 12 months. Charging Time: no need charge,endurance ability. Call Reminder: Support. SMS,Message...
Specification: System: IOS iphone4S IOS8 and above. Andrews Andrews 4.3 Bluetooth 4.0 and above models. Bluetooth version: BLE4.0. Bluetooth chip: nRF52832. Heart rate sensor heart rate blood pressure two in...