Xiaomi Redmi Watch 4 Obsidian Black

Ultra-large 1.97″ Square AMOLED display

60Hz refresh rate

LTPS 5Hz

Brightness: Up to 600 nits

Metal middle frame, rotating crown and all-new quick release mechanism

Versatile analysis of heart rate, SpO₂, sleep, and more

Built-in multi-system GNSS

Supports Bluetooth phone call

The PPG sensor configuration has been upgraded to include 4-channel to help increase health monitoring accuracy.

Heart rate sensor (with blood oxygen sensor) ,Accelerometer

Gyroscope , Ambient light sensor ,electronic compass

With 5ATM water resistance, it is suitable for 18 aquatic sports

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