Xiaomi Band 3 is a smart wristband launched by Xiaomi Technology Company. It has a lightweight and stylish design, suitable for daily wear, and provides rich health tracking and intelligent functions. Equipped with a 0.78-inch OLED touch screen, the display is clear and bright, making it easy to view time, steps, heart rate, and other health data. Health tracking is one of the key features of Xiaomi Mi Band 3. It can monitor heart rate, sleep quality, and exercise data in real-time, and provide detailed reports and analysis. It also has a pedometer and motion pattern recognition function, which can record steps, distance, and calorie consumption. It also supports intelligent notification function.

FitbitVersa3 is a powerful smart health watch. It combines health tracking, intelligent notifications, and fitness functions to provide users with comprehensive health management and life assistance. Equipped with an optical heart rate monitor and SpO2 sensor, it can monitor heart rate, blood oxygen levels, and sleep quality in real-time. It also has a built-in GPS that can track the user's movement trajectory and distance, while providing real-time statistics on steps, calories, and activity time. Supporting multiple exercise modes, it can provide users with accurate exercise guidance and data analysis. It also provides intelligent notifications and application functions.