Display
Display type: Digital
Display resolution: 450 x 390 pixels
Touchscreen: Yes
Display diagonal: 5 cm (1.97)
Display technology: AMOLED
Display brightness: 450 cd/m²

Design
Market positioning: Smartwatch
Watch case colour: Black
Watch case material: Aluminium
Band colour: Black
Band material: Thermoplastic polyurethane (TPU)
Band size: One Size
Shape: Rectangular
Waterproof: Yes
Water resistance: 5 ATM

Performance
Built-in microphone: Yes
Built-in speaker(s): Yes
Built-in camera: No

Features
Heart rate monitor: Yes
Blood oxygen sensor: Yes
Accelerometer: Yes
Activity tracker: Yes
Multisport mode: Yes
Quality of sleep: Yes

Network
Mobile network connection: No

Ports & interfaces
Bluetooth: Yes
Bluetooth Low Energy (BLE): Yes

Power
Battery type: Built-in battery
Battery life (max): 480 h

Package contents
Cables: USB
Manual: Sim
TPU strap with quick release: Sim

Smartwatch Redmi Watch 4 Preto - Xiaomi