Mi band's 5nfc blood oxygen measurement method is to open the Xiaomi sports health interface and click on the device; Enter the interface, and click the oxygen saturation setting; Click start all-day blood oxygen monitoring to test. Mi band 5 is a smart bracelet product released by Xiaomi Company on June 1 1 2020. Mi band 5:Mi band 5 is equipped with 1. 1 inch AMOLED screen with the size of 46.95mm×18.15mm×12.45mm., The weight is about 1 1.9g...Mi band 5 supports 10 theme dial, has 1 1 professional sports mode, supports 14 days battery life, and adopts magnetic charging scheme. Equipped with 24-hour sleep monitoring, pressure monitoring and respiratory training functions. The wrist buckle of mi band 5 is made of aluminum alloy; The shell is made of PC plastic. The cover plate is made of 2.5D tempered glass +AF coating. The wristband is made of TPU material. Mi band 5 supports yoga, rowing machine, skipping rope and so on. Give consideration to shaping and reducing fat, and accurately monitor and analyze every movement posture. Mi band 5 evaluates personal vitality index according to gender, age, heart rate and other data, and provides exercise guidance to enhance vitality.