The package includes: 1 x smart watch 1 x user manual 1 x retail box (no charger in the box, it is USB charging!) Note:Wearable devices monitor human activity through electronic sensors, and they are at the electronic level of the consumer. It is normal for some deviation. The user must treat the data objectively. - Please do not compare it to hospital equipment, it is not a medical device! - Before using, scan the QR code on the manual to download the APP and connect it to the watch with the APP. - For Android user: please always allow application access to all phone functions and let it work. And please turn on your phone's GPS before you connect it. - Please charge it for 2-3 hours when you receive it. It can be run out of power during transport. Thank you!