Redmi Watch 4 vs Apple Watch Ultr comparison

Show Only Differences Highlight Differences	Redmi Watch 4	Apple Watch Ultra
key specs
Dial Shape	Rectangle	Rectangle
Display Type	AMOLED	OLED Retina
Ideal For	Unisex	Unisex
Display Size	-	49mm
general
Brand	Redmi	Apple
Model	Watch 4	Watch Ultra
Release date	November 29, 2023	September 7, 2022
Model Name	Redmi Watch 4	Watch Ultra
Dial Colour	Black, White	-
Dial Shape	Rectangle	Rectangle
Size	Regular	Large
Touchscreen	Yes	Yes
Water Resistant	5 ATM	Yes
Ideal For	Unisex	Unisex
Water Resistance Depth	-	40m
Usage	-	Fitness & Outdoor
dimensions
Width	47.58	-
Height	41.12	-
Thickness	10.5	-
Weight (g)	31.50	-
product details
Sensor	acceleration, gyro, geomagnetic, ambient light and optical heart rate and blood oxygen sensors	Compass, Always-On Altimeter, third-gen optical heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor
Battery Type	470mAh	Lithium Ion
Battery Life	20 days	-
Rechargeable Battery	Yes	Yes
Notification	-	Yes
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.3	-
Wi-Fi	Yes	Yes
Call Function	-	Yes
GPS	-	Yes
Call Features	-	International Emergency Calling
Other Connectivity Features	-	Emergency SOS
platform and storage features
Operating System	HyperOS	watchOS 9
camera and display features
Display Resolution	390 x 450	-
Display Type	AMOLED	OLED Retina
Display Size	-	49mm
Backlight Display	-	Yes
Other Display Features	-	LTPO OLED Always-On Retina display
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Compass	Yes	Yes
Calendar	Yes	Yes
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Language	Simplified Chinese, Traditional Chinese, English	English
Number of Buttons	One	-
Other Fitness Features	Stress tracker, SpO2, Menstrual cycle monitoring	Blood Oxgen Sensor, ECG sensor
Altimeter	-	Yes
audio and video features
Speaker	-	Yes
Microphone	-	Yes

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