Due to the ultra-low power Bluetooth technology (BLE4.x) adopted by the blood pressure watch, under the premise of ensuring the power, the smart bracelet (watch) only normally open and sleep, there is no need to close.When the screen goes off for 20 minutes, the Bluetooth device automatically goes to sleep to save power.When the touch band lights up the screen again, the Bluetooth is awakened again.
If you have any questions, please contact us by the following ways
