Xiaomi Mi Band 4

• Design: Elliptical plastic body, silicone clip-on strap, 5 ATM Water-Resistance
• Display: 0.95″ AMOLED display, touchscreen, 120 x 240 resolution
• Sensors: PPG Optical Heart-rate monitors, 6-axis-motion-control-sensor (3-axis accelerometer + 3-axis gyroscope motion sensor), proximity sensor
• Features: Sleep tracker, 24/7 activity tracker, music playback controls, notifications, alarms, reminders, etc.
• Connectivity: Bluetooth 5.0, Mi Fit App
• Battery: 135 mAh

This price of Mi band 4 is for the Global variant without NFC.