Features: Portable in size and weight, long time wear without tired. Simple fashion appearance fully sense of modern technology. IP68, deep waterproof and protection level, anti-dust. Support heart rate monitor, send massage, BT and other functions. Large capacity cell make sure the long work time. Superior silica gel watch belt, non-toxic and harmless for human body, wear resistant. Built-in 8 sports modes, satisfied your daily life needs. 1.3in 2.5D curve glass large colorful screen, data can see clearly. Support operate by botton and hand. Product photography help you memory important moment. Real time send massage and call, won\'t miss improtant information.