Xiaomi Redmi Watch 4, obsidian black

• Ultra-large 1.97" AMOLED display
• Metal middle frame, rotating crown and all-new quick release mechanism
• Up to 20 days battery life
• Built-in multi-system GNSS
• Supports Bluetooth® phone call
• Versatile analysis of heart rate, SpO2, sleep, and more

Major display upgrade

Experience the biggest screen ever on the Redmi Watch, boasting a 26% increase in display area. Paired with a 60Hz high refresh rate, it delivers incredibly smooth and silky visuals.

• LTPS 5 Hz
• 60 Hz high refresh rate
• Up to 600 nits brightness

Aluminum alloy frame with a stainless steel rotating crown

Redmi Watch 4 adopts a sturdy and reliable aluminum alloy frame* for the first time for a more elevated design feel. The exquisite stainless-steel rotating crown adds high-end finesse to even the smallest details and its gentle spin gives a more comfortable experience.



All-new quick-release structure

Upgraded next-gen quick-release structure makes strap replacement easier. Diverse strap options* mean you can switch up your style on a whim.



200+ stylish watch faces

Discover our extensive range of chic watch faces to match your unique style.

Featuring a variety of fun watch faces and customizable components, style and functionality are yours to command.



20-day battery life

Outfitted with a sizeable battery and an energy-efficient chip optimized for longevity. Enjoy a 20-day extra-long battery life in typical usage mode. Portable magnetic charging lets you power up with a simple touch, for worry-free use.

• AOD mode: 10 days
• Long battery mode: 30 days
• Typical usage mode: 20 days
• -25% system power consumption

Bluetooth phone call

Redmi Watch 4 connects to your smartphone via Bluetooth, allowing you to view and reject calls on your watch, and engage in conversations with the built-in microphone and speaker without the need to take out your smartphone.



4-channel PPG sensor configuration

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



Smart sleep monitoring

With the help of scientific, meticulous sleep monitoring technologies, the watch records your real-time sleep condition at different stages, such as deep sleep, light sleep and REM, improving your sleeping habits and quality.



All-round health monitoring

• Blood oxygen saturation monitoring throughout the day. Sends vibration alerts when blood oxygen saturation is too low.
• Heart rate monitoring throughout the day. Continuous and precise heart rate monitoring safeguards your cardiovascular health at all times.
• Stress monitoring. Breathing exercise prompts will be sent when your stress level reaches 80 twice in a row during your awake time.

150+ sports modes

It caters to a wide array of professional sports modes, including outdoor and indoor running, walking, cycling, and more. Before your exercise, you can warm up following the motion pictures of a professional coach and get the right posture to reduce sports injuries.



Independent satellite positioning

Equipped with an independent GNSS chip, it works in tandem with your smartphone or on its own. Five satellite positioning systems are supported to accurately track your every step.



5 ATM Professional water resistance

With 5 ATM water resistance, it is suitable for 18 aquatic sports, allowing you to enjoy your aquatic time with ease. The automatic water drainage function brings you utmost convenience.



Daily health data at your fingertips

Daily health statistics, such as heart rate, fitness, and sleep, are shown in detail to provide a clear picture of your health. Syncing data with Strava and Apple Health is also made easy.



24-hour security protection

In case of emergencies, press the crown button three times quickly to alert your emergency contact. Your safety is always the top priority.

Display
Display type	AMOLED
Display size	1.97"
Screen surface	Glare
Screen protection	Anti-fingerprint coating
Touch screen	Yes
Backlight	Yes
Functions
Notifications	Calls / Apps / SMS / Social media / Alarm / E-mail / Calendar
Smart features	Music control / Find My Phone / Calling / SOS
Activity monitoring	Pace / Exercise timer / Respiration / Stress level / Sleep / Blood oxygen / Distance / Breathing rate / Speed / Calorie counter / Heart rate / Step count
Software
Suitable operating systems	Android / Apple iOS
Networks
Bluetooth	Yes
Sensors
Gyro sensor	Yes
Accelerometer	Yes
Light sensor	Yes
Heart rate monitor	Built-in
Step counter	Yes
GPS	GPS / GLONASS / Beidou / Galileo / QZSS
Compass	Yes
Connectivity
Sound	Built-in speaker / Integrated microphone
Power
Power source	Rechargeable battery
Battery capacity	470 mAh
Battery life	20 days
Charging	Magnetic charging
Dimensions and weight
Width (mm)	41.1
Height (mm)	47.5
Depth (mm)	10.5
Band size	135 – 205 mm
Weight (g)	31.5
Other
Color	Black
Body material	Aluminium
Band material	TPU rubber
Weather sealing	Waterproof (up to 50 m)
Package contents	Smartwatch / Charger / User manual