Xiaomi Watch S4 41mm vs Huami Amazfit Stratos 3 comparison

Compare Xiaomi Watch S4 41mm
Compare Huami Amazfit Stratos 3
key specs
Display Size41mm-
Strap MaterialMilaneseSilicone
Dial ShapeRoundRound
Ideal ForUnisex-
general
BrandXiaomiHuami
ModelWatch S4 41mmAmazfit Stratos 3
Release dateSeptember 24, 2025August 27, 2019
Dial ShapeRoundRound
Strap MaterialMilaneseSilicone
SizeRegular-
Touchscreen1.32Yes
Water Resistant5ATM5ATM
Water Resistance Depth50 m50 Meters
UsageRegularFor Sports
Dial MaterialStainless steelStainless Steel
Ideal ForUnisex-
Model Name-Stratos 3
dimensions
Width41.2-
Height41.2-
Diameter9.548.6mm
Weight (g)32.0040.40
Thickness-13.4 mm
product details
SensorHeart rate sensor (with blood oxygen sensor), Accelerometer, Gyroscope, Ambient light sensor, Electronic compass, Barometer sensor, Temperature sensorBioTracker PPG Bio-Tracking optical sensor, 6-axis acceleration sensor, 3-axis geomagnetic sensor, Air pressure sensor
Battery Type320mAhLithium-ion polymer battery
Battery Life8 days7 days in smart mode
Compatible Device-Android 5.0 or iOS 10.0 and above
Notification-Yes
Notification Type-Calls, Messages, App Alerts
Charge Time-2.5 hours
connectivity features
Call FunctionYes-
BluetoothYesYes
Bluetooth Version5.45.0
GPSYesYes
Wi-Fi-Yes
platform and storage features
Operating SystemXiaomi HyperOS 3Amazfit OS
Number of Cores-dual-core
RAM-512MB
Processor Speed-1200
Internal Memory-2GB
camera and display features
Display Resolution466 × 466320x320
Display Size41mm-
Other Display Features1500nits, 60Hz refresh rate-
fitness and watch functions
Step CountYesYes
Heart Rate MonitorYesYes
AltimeterYes-
CompassYes-
CalendarYes-
Alarm ClockYesYes
Date & Time DisplayYes-
LanguageEnglish-
Calorie Count-Yes
Number of Buttons-4
Other Fitness Features-80 Sports Modes
audio and video features
SpeakerYes-
MicrophoneYes-
Audio Features-Standalone Music Playback

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