ky11 fitness tracker smart watch with pedometer waterproof heart rate monitor sleep bluetooth smartwatch men woman for ios android

especially suitable for use when outdoor activities. bidirectional anti lose so you don't be careful if you can't find your cell phone. with the function of monitoring sleep, let us further understand their sleep quality. includes multiple functions: such as music entertainment, can directly answer the phone, receive text messages, sit up for a long time, and so on.