- Full-colour AMOLED touch screen: the full-colour AMOLED touch screen is 39.9% bigger and brighter than ever; for a wider and more colourful view directly on your wrist; a beautiful change.
- Larger reading touch screen: The Xiaomi Mi Band 4 has a large AMOLED screen (0.95 inches) with 120 / 240 pixels. You will instantly see calls, text messages, app notifications and see which music is playing. It not only alerts you through vibration on the wrist when your phone receives direct calls, messages or other notifications, but also shows the details, such as the content, directly on the screen.
- 24/7 heart rate monitoring: Accurately reads heart rate changes 24 hours a day and detects the current heart rate at any time. Alerts you when your heart rate is too high and protects your health at all times.
- Swimming activity monitoring: 3-axis accelerometer, 3-axis gyroscope; 5 ATM water resistance up to 50 m. Xiaomi Mi Band 4 works well at 50 metres underwater. It is suitable for all your daily activities and you won’t have to worry when you shower, wash, run in the rain, swim or surf.
- Battery up to 20 days: The Xiaomi Mi Band 4 has a greater battery capacity (135 mAh) and can last up to 20 days with normal use.