Amazfit Cheetah 2 Ultra vs Xiaomi Watch S4 15th Anniversary Edition comparison

Compare Amazfit Cheetah 2 Ultra
Compare Xiaomi Watch S4 15th Anniversary Edition
key specs
Dial ShapeRoundRound
Display TypeAMOLEDAMOLED
Ideal ForUnisexUnisex
Display Size-36mm
Compatible OS-Android 8.0 or above, iOS 12.0 or above
general
BrandAmazfitXiaomi
ModelCheetah 2 UltraWatch S4 15th Anniversary Edition
Release dateJune 9, 2026May 23, 2025
Dial ShapeRoundRound
SizeLargeRegular
Touchscreen1.51.43
Water Resistant5 ATM5 ATM
Water Resistance Depth50 m-
UsageRegular, Sports, Adventure SportsRegular
Ideal ForUnisexUnisex
Model Name-Xiaomi Watch S4 15th Anniversary Edition
Dial Colour-Black
Interchangeable Strap-Yes
dimensions
Width47.447.3
Height47.447.3
Thickness15.612
Weight (g)52.0044.50
product details
SensorBioTracker PPG biometric sensor, Accelerometer, Gyroscope, Geomagnetic sensor, Temperature sensor, Barometric altimeter, Ambient light sensorHeart Rate Monitor, Stress, Sleep
Battery Type780mAh486mAh
Battery Life30 days-
Rechargeable BatteryYes-
Compatible Device-Android and iOS
connectivity features
Call FunctionYes-
BluetoothYesYes
Bluetooth Version5.25.3
GPSYesYes
Wi-Fi-Yes
Other Connectivity Features-NFC, Galileo, Glonass, Beidou, QZSS
platform and storage features
Operating SystemZeppOS 6HyperOS 2
Internal Memory64GB-
Compatible Operating System-Android 8.0 or above, iOS 12.0 or above
camera and display features
Display Resolution480 x 480466 x 466
Display TypeAMOLEDAMOLED
Other Display FeaturesUp to 3,000 nits, Sapphire glass-
Display Size-36mm
fitness and watch functions
Step CountYesYes
Heart Rate MonitorYesYes
AltimeterYes-
CompassYes-
Date & Time DisplayYesYes
LanguageEnglishEnglish
Number of Buttons4-
Calorie Count-Yes
Alarm Clock-Yes
audio and video features
SpeakerYes-
MicrophoneYes-

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