Note: 1, Wearable devices monitor human activities through electronic sensors. They are at the level of consumer electronics. It's normal to have little deviation. Please do not compare it to hospital equipment, which is NOT a medical device ! 2, As the firmware is continuously updated, the user interface will be updated accordingly. The images are for reference only, and everything is subject to the actual product. 3, This product is an electronic product. Do not take a bath with this product. Don't expose it to heat under high temperature. Do not soak it in water . 4, When the watch is placed on the surface of a table or other objects, the watch's heart rate and blood pressure detection function will still have detection values, because the current watch's human health detection function uses light detection technology, and objects are composed of cells, so there will be detection values. 5, Please don't use the mobile phone's Bluetooth to directly connect the watch / band, it will cause the APP to fail to bind the watch / band. If it is already connected, please delete the watch / band in the mobile phone's Bluetooth matching device, Please read the instructions carefully before use.