Do not order this watch from this seller! He's probably not sending new ones. At a distance of 50 cm the clock is constantly disconnected from the phone then again connected. Calls and sms can be missed. I opened a dispute, but ali decided not in my favor, although there was a photo and video proof. The seller offered a new battery. Should i wait a month?
The watch looks perfect and I received it within two weeks. From the description I thought that the watch will be able to count my heart rate by itself, but this function is not implemented. You still can check it within the lenovo watch app(works like any other health application.) English manual could be useful for non chinese speakers. It was a really big struggle for me to figure out how to activite the watch. We have to push the bottom on the device, until the red light turns in, activite the bluetooth connection on the phone and start the application. Important info: by calibration the time within the application, you have to type the time, what you are seeing on the watch, not the exact time from your phone. Otherwise it will never show the correct time:) Very satisfied with the device.