• Display: Ultra-large 1.97" Square AMOLED display
• Frame: Aluminum alloy frame
• Brightness: Up to 600 nits
• Sensors: Heart rate sensor (with blood oxygen sensor) | Accelerometer | Gyroscope | Ambient light sensor|electronic compass
• Strap Size: 135mm ~ 205mm
• Strap Material: TPU
Product Code: Xiaomi Redmi Watch 4 ACCXIAMWTCH4BK
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