The Mi Smart Band 4C features a 1.08” large colour screen with an adjustable brightness function. The screen can be brightened by lifting the wrist and it can be put off by lightly pressing the palm of the hand. The Mi Band 4C showcases a 0.95 inches AMOLED 2.5D colourful touchscreen that is protected by 2.5D scratch-resistant tempered glass. The band is lightweight and waterproof for up to 50m. It has features such as 24-hour heart rate monitoring, sleep monitoring and analysis, steps, calories, and multiple sports modes. It also has a smart reminder function to remind you to get up and exercise if you have been sitting down for too long. The Mi Smart Band 4C has a long battery life of 14 days and you can directly plug it into the USB-A port to charge.