Xiaomi Mi Band 4 fitness tracker - a high-profile novelty of the year 2019! The excitement of the audience is quite explainable: fans of fitness and technology have been waiting for Mi Band 4 for several months. The novelty has received a number of important improvements compared to previous models. The display has become color and touch, coated with a protective 2.5D glass. The functionality of the new tracker includes: measuring steps taken and calories burned, monitoring sleep quality and heart rate, and an alarm clock. Also, using the bracelet, you can accept or reject phone calls, control music playback. The 3-axis gyroscope supports 6 different sports modes (running, swimming, walking, cycling, etc.).