Xiaomi Watch S4 15th Anniversary Edition vs Samsung Galaxy Watch Ultra comparison

Compare Xiaomi Watch S4 15th Anniversary Edition
Compare Samsung Galaxy Watch Ultra
key specs
Display Size36mm-
Compatible OSAndroid 8.0 or above, iOS 12.0 or above-
Dial ShapeRoundRound
Display TypeAMOLEDSuper AMOLED
Ideal ForUnisexUnisex
Strap Material-Silicone
general
BrandXiaomiSamsung
ModelWatch S4 15th Anniversary EditionGalaxy Watch Ultra
Release dateMay 23, 2025July 10, 2024
Model NameXiaomi Watch S4 15th Anniversary Edition-
Dial ColourBlackTitanium Gray, Titanium Silver, Titanium White
Dial ShapeRoundRound
SizeRegularRegular
Touchscreen1.43-
Interchangeable StrapYesYes
Water Resistant5 ATM10 ATM
UsageRegularRegular
Ideal ForUnisexUnisex
Model Number-SM-L705FDAA
Strap Material-Silicone
Water Resistance Depth-IP68
dimensions
Width47.347.4
Height47.347.1
Thickness1212.1
Weight (g)44.5060.50
Diameter-47
product details
SensorHeart Rate Monitor, Stress, SleepSamsung BioActive Sensor (Optical Bio-signal sensor + Electrical Heart Signal + Bioelectrical Impedance Analysis), Temperature Sensor, Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor
Compatible DeviceAndroid and iOSAndroid 11 or higher and with more than 1.5GB of memory
Battery Type486mAh590mAh
Rechargeable Battery-Yes
connectivity features
BluetoothYesYes
Bluetooth Version5.35.3
Wi-FiYesYes
GPSYesYes
Other Connectivity FeaturesNFC, Galileo, Glonass, Beidou, QZSS-
Call Function-Yes
Messaging Support-Yes
platform and storage features
Operating SystemHyperOS 2Watch OS
Compatible Operating SystemAndroid 8.0 or above, iOS 12.0 or above-
RAM-2GB
Processor Name-Exynos W1000
Internal Memory-32GB
camera and display features
Display Resolution466 x 466480x480
Display Size36mm-
Display TypeAMOLEDSuper AMOLED
fitness and watch functions
Step CountYesYes
Calorie CountYesYes
Heart Rate MonitorYesYes
Alarm ClockYesYes
Date & Time DisplayYesYes
LanguageEnglish-
Compass-Yes
Calendar-Yes
Other Fitness Features-FTP tracking, heart rate zones, multi-sport tile
ratings
Overall NDTV Rating-Read Review
Design and comfort Rating-
Tracking accuracy Rating-
Software and ecosystem Rating-
Battery life Rating-

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