New Watch4 Smartwatch 1.52” Inch HD Full Screen Display Bluetooth Call Capabilities Sports Multifunctional Male Business Watch

Please charge the device before use after receiving it. 1 to 2 hours after receipt. The battery ran out after a long time away. Thank you!System Requirements：android5.0+ / ios10.0+The battery usage of this product can be used for about 10 hours when the connected Bluetooth call, 3-5 hours when the linked music is always playing, 3 days when the unconnected Bluetooth can be used, 5-7 days when the standby mode can be used, the use time varies according to the scenario, and the normal use is About 2 daysPlease note;Wearable devices monitor human activities through electronic sensors and remain at the consumer's electronic level. It's normal to have some deviations.Please do not compare it with hospital equipment. It is not medical equipment! Before use, scan the QR code in the manual to download the APP and connect the watch through the APP.