K57 Pro 1.96 Inch Wireless Call Music Weather Display Waterproof Smart Watch

K57 Pro 1.96 Inch Wireless Call Music Weather Display Waterproof Smart Watch. K57 Pro 1.96 Inch Bluetooth Call Music Weather Display Waterproof Smart Watch. Parameter. Supported systems: Android 4.4 and above, IOS 8.0 and above. Functions: time display, step counting, calories, distance, heart rate, blood pressure, blood oxygen, on/off display. Stopwatch, multi-sport mode, incoming call notification, information reminder, multi-language push, alarm clock reminder, remote photography, sedentary reminder, sleep monitoring (sleep time, sleep quality) Main control chip: Realtek 8763EWE. Memory: Flash 128MB. Screen: 1.96-inch IPS square screen with full viewing angle. Screen resolution: 320 x 386. Bluetooth version: 5.0. Heart rate: 3605. Speaker: 0916. Battery: capacity: 400 mAh. Standby time: about 30 days. Working time: about 5-10 days. Motor: built-in, vibration reminder. Specification: CPU: Realtek 8763EWE. Rom+ram：640kb+578kb. External Flash: 128MB. Display screen: 1.27 inch IPS TFT screen, resolution 360x360, support full screen touch. Sensor: Heart rate sensing chip-HRS3605, G-sensor-STK8321. Battery: 200mAh, seat charging. Bluetooth: BT 5.2. Waterproof grade: IP67. Main. Appearance.