Xiaomi Watch S4 15th Anniversary Edition vs Apple Watch Series 7 GPS + Cellular comparison

Compare Xiaomi Watch S4 15th Anniversary Edition
Compare Apple Watch Series 7 GPS + Cellular
key specs
Display Size36mm41mm
Compatible OSAndroid 8.0 or above, iOS 12.0 or above-
Dial ShapeRoundRectangle
Display TypeAMOLEDOLED Retina
Ideal ForUnisexUnisex
general
BrandXiaomiApple
ModelWatch S4 15th Anniversary EditionWatch Series 7 GPS + Cellular
Release dateMay 23, 2025September 14, 2021
Model NameXiaomi Watch S4 15th Anniversary EditionWatch Series 7 GPS + Cellular
Dial ColourBlackMidnight, Starlight, Green, and a New Blue and (PRODUCT)RED
Dial ShapeRoundRectangle
SizeRegularRegular
Touchscreen1.43Yes
Interchangeable StrapYes-
Water Resistant5 ATMYes
UsageRegularFitness & Outdoor
Ideal ForUnisexUnisex
Water Resistance Depth-50m
dimensions
Width47.3-
Height47.3-
Thickness12-
Weight (g)44.50-
product details
SensorHeart Rate Monitor, Stress, SleepCompass, Always-On Altimeter, third-gen optical heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor
Compatible DeviceAndroid and iOS-
Battery Type486mAhLithium Ion
Notification-Yes
Battery Life-Up to 18 hours
Rechargeable Battery-Yes
connectivity features
BluetoothYesYes
Bluetooth Version5.3-
Wi-FiYesYes
GPSYesYes
Other Connectivity FeaturesNFC, Galileo, Glonass, Beidou, QZSSEmergency SOS
Call Function-Yes
Call Features-International Emergency Calling
platform and storage features
Operating SystemHyperOS 2watchOS 8
Compatible Operating SystemAndroid 8.0 or above, iOS 12.0 or above-
camera and display features
Display Resolution466 x 466-
Display Size36mm41mm
Display TypeAMOLEDOLED Retina
Backlight Display-Yes
Other Display Features-LTPO OLED Always-On Retina display
fitness and watch functions
Step CountYesYes
Calorie CountYesYes
Heart Rate MonitorYesYes
Alarm ClockYesYes
Date & Time DisplayYesYes
LanguageEnglishEnglish
Altimeter-Yes
Compass-Yes
Calendar-Yes
Other Fitness Features-Blood Oxgen Sensor, ECG sensor
ratings
Overall NDTV Rating-Read Review
Design and comfort Rating-
Tracking accuracy Rating-
Software and ecosystem Rating-
Battery life Rating-
audio and video features
Speaker-Yes
Microphone-Yes

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