Xiaomi Redmi Watch 4 - Obsidian Black

Dimensions:

•  47.5mm x 41.1mm x 10.5mm
• Height, width and thickness dimensions exclude the strap and protrusions
• Weight: 31.5g (without inbox strap)

Frame: Aluminum alloy frame

Strap:

• Obsidian Black TPU strap size 135mm ~ 205mm
• Silver Gray TPU strap size 135mm ~ 205mm
• Sensors: Heart rate sensor with blood oxygen sensor, Accelerometer, Gyroscope, Ambient light sensor, Electronic compass
• Satellite positioning systems: GPS, Galileo, Glonass, BeiDou, QZSS
• Battery:
• Typical use time 20 days
• Capacity 470mAh
• Display: Ultra-large 1.97" Square AMOLED display
• 60Hz refresh rate, LTPS 5Hz
• Brightness up to 600 nits

Specifications:

• Built-in GNSS supported
• Speaker supported
• Bluetooth call supported
• 5ATM water resistance