Sunlink Smart Ring - 2.2MM Heart Rate Blood Oxygen

Product Parameters: 1.CPU:OM6626A. 2.Bluetooth Version:BLE 5.3. 3.Battery capacity:18mAh. 4.G Sensor:SC7A20H. 5.Heart Rate Sensor:HX3918. 6.Waterproof 5ATM. Main Function: Heart rate detection. Blood oxygen test. blood pressure detection. Temperature measurement. Remote photography. Motion-sensing game. Gesture interaction. Multiple sport modes. Sleep detection (Sleep time ,Sleep ). Step count. Synchronous data to APK/APP. Notes: 1.Wearable devices monitor human activities through electronic sensors. They are at the of consumer electronics. It's normal to have certain deviation. The health test results of the watch are for reference , and can not be compared with equipment. When the watch is placed the surface of the object, there will be heart rate / blood pressure and other test results. It is normal and not a product defect. 2. As the firmware is continuously updated, the user interface will be updated accordingly. The images are for reference , and everything is subject to the actual product. 3. This product is an electronic product. Do not take a bath with this product. Do not expose it to heat under temperature. Do not soak it in water . 4. Please download APP firstly, and bind the watch, Do not use the mobile phone Bluetooth to directly link the watch. If it is already connected, please delete the matched watch from the mobile phone Bluetooth matching device. 5. Due to the difference of light and screen, the color of the item may be slightly different from the picture.