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Wearable comparison

Samsung Galaxy Watch 6 Classic vs Xiaomi Watch S4

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Samsung Galaxy Watch 6 Classic

Samsung Galaxy Watch 6 Classic

  • Screen: 47 mm: 480 × 480 pixels; 43 mm: 432 × 432 pixels.
  • Exynos W930, 5 nm processor.
  • 2 GB RAM in this version.
  • 16 GB storage in this version.
  • Wi-Fi 4 support.
KSh 22,500Out of Stock
02
Xiaomi Watch S4

Xiaomi Watch S4

  • Screen: 466 × 466 pixels; 326 ppi.
  • Runs Xiaomi HyperOS 2.
  • Bluetooth 5.3 connection.
  • 486 mAh battery capacity.
  • 5 ATM.
KSh 21,940In Stock
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2 of 4 products

Our quick verdict

The Xiaomi Watch S4 lasts longer between charges (up to 15 days), works with Android phones and iPhones and is lighter to wear all day, while the Samsung Galaxy Watch 6 Classic takes ECG heart-rhythm readings, has a brighter screen for outdoor use and offers hypertension notifications.

Display

Samsung Galaxy Watch 6 Classic
47 mm: 480 × 480 pixels; 43 mm: 432 × 432 pixels
Xiaomi Watch S4
466 × 466 pixels; 326 ppi

Battery life

Samsung Galaxy Watch 6 Classic
Up to 40 hours per charge
Xiaomi Watch S4
486 mAh battery

Portability

Samsung Galaxy Watch 6 Classic
59 g
Xiaomi Watch S4
About 44.5 g

Connections

Samsung Galaxy Watch 6 Classic
Wi-Fi 4, Bluetooth 5.3
Xiaomi Watch S4
Bluetooth 5.3

Software

Samsung Galaxy Watch 6 Classic
Wear OS Powered by Samsung
Xiaomi Watch S4
Xiaomi HyperOS 2

Key differences

The main differences to help you choose.

Samsung Galaxy Watch 6 Classic

  • Brighter display: up to 2,000 nits (vs 1,500).
  • ECG heart-rhythm readings.
  • Blood-pressure (hypertension) notifications.
  • Slimmer: 10.9 mm thick (vs 12 mm).

Xiaomi Watch S4

  • Longer rated battery life: up to 15 days (vs 40 hours).
  • Works with Android phones and iPhones.
  • Lighter: about 44.5 g (vs 59 g).
  • Syncs with third-party apps such as Strava and Apple Health.

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

6 priorities selected.
How each product answers the selected priorities
PrioritySamsung Galaxy Watch 6 ClassicXiaomi Watch S4
Battery lifeUp to 40 hours per charge486 mAh battery
Display1.5-inch OLED display1.43-inch OLED display, 60 Hz, 326 ppi
ConnectionsWi-Fi 4, Bluetooth 5.3Bluetooth 5.3
SoftwareWear OS Powered by SamsungXiaomi HyperOS 2
Battery capacity47 mm: 425 mAh typical486 mAh battery
Water resistanceIP68 water and dust resistance5 ATM

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
Display47 mm: 1.5-inch Super AMOLED; 43 mm: 1.3-inch Super AMOLED1.43-inch AMOLED
Screen resolution47 mm: 480 × 480 pixels; 43 mm: 432 × 432 pixels466 × 466 pixels; 326 ppi
Display protectionSapphire crystalScratch/drop-proof glass
Display featuresFull-colour Always-On Display; up to 2,000 nits60 Hz refresh rate; up to 1,500 nits HBM

Connectivity

Connectivity specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
Network / cellularLTE model: GSM, HSPA and LTEPhone network shared through Bluetooth (Android)
SIM / eSIMEmbedded SIM on LTE model—
Wi-FiWi-Fi 802.11 a/b/g/n, 2.4 GHz and 5 GHzNo
BluetoothBluetooth 5.3Bluetooth 5.3
NFCSupportedSupported (regional availability)
Positioning / GNSSGPS, GLONASS, Galileo and BeiDouGPS; Galileo; GLONASS; BeiDou; QZSS

Identity & design

Identity & design specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
BrandSamsungXiaomi
ModelSamsung Galaxy Watch6 ClassicXiaomi Watch S4
Announced26 July 20232024, October 29
Dimensions47 mm: 46.5 × 46.5 × 10.9 mm; 43 mm: 42.5 × 42.5 × 10.9 mm47.3 × 47.3 × 12.0 mm, excluding strap and protrusions
Weight47 mm: 59.0 g without strap; 43 mm: 52.0 g without strapApproximately 44.5 g without strap
Build materialsStainless-steel frame; sapphire-crystal frontAluminum-alloy frame
Strap / band20 mm Hybrid Eco-Leather Band; standard 20 mm straps compatibleFluororubber; additional nylon strap with rainbow version
Controls / buttonsPhysical rotating bezel; two side buttons; touchscreenRotating crown and side button; touchscreen
Wrist size—140–210 mm (black, silver); 135–210 mm (rainbow)

Performance & software

Performance & software specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
ProcessorExynos W930, 5 nm—
CPUDual-core 1.4 GHz Cortex-A55—
GPUMali-G68—
RAM2 GB—
Storage16 GB—
Operating systemWear OS Powered by Samsung (Wear OS 4) with One UI 5 WatchXiaomi HyperOS 2

Audio & communication

Audio & communication specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
SpeakerBuilt-in loudspeakerSupported
CallingBluetooth calling; LTE model supports standalone cellular callingBluetooth calling with a connected smartphone
Microphone—2 microphones

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
SensorsSamsung BioActive Sensor (optical heart rate, electrical heart signal and bioelectrical impedance); infrared temperature sensor; accelerometer; barometer; gyroscope; geomagnetic sensor; light sensor; 3D Hall sensorHeart-rate and blood-oxygen sensor; accelerometer; gyroscope; ambient-light sensor; electronic compass; barometer; Hall sensor
Health & wellness featuresHeart-rate and heart-rhythm monitoring; ECG and irregular-heart-rhythm notifications where available; blood-pressure monitoring where available; blood oxygen; body composition; skin-temperature-based cycle trackingHeart rate; blood oxygen; stress monitoring
Sleep trackingSleep-stage tracking, sleep score, snore detection and Advanced Sleep CoachingSleep tracking
Sports / workout modesAutomatic workout detection and Samsung Health exercise tracking150+ sports modes
Training & outdoor featuresPersonalised heart-rate zones; running analysis; route workout and Track BackRunning-form metrics; professional skiing mode; outdoor routes; running courses
Safety & emergency featuresFall detection and emergency SOS features through a compatible phone or LTE serviceSkiing fall detection and emergency-contact calling with a connected smartphone

Battery & durability

Battery & durability specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
Battery capacity47 mm: 425 mAh typical; 43 mm: 300 mAh typical486 mAh
Battery lifeUp to 40 hours with Always-On Display off; up to 30 hours with Always-On Display onUp to 15 days typical use
ChargingFast WPC-based wireless charging, up to 10 W2-pin magnetic charging dock
Water resistance5 ATM; IP685 ATM
Durability / certificationsMIL-STD-810H compliant; IP68 ingress protection—

Compatibility

Compatibility specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
Phone compatibilityAndroid 10 or later with more than 1.5 GB RAMAndroid 8.0 or later; iOS 14.0 or later
Companion appGalaxy Wearable and Samsung HealthMi Fitness
ColorsBlack; SilverBlack, Silver, Rainbow

Additional specifications

Additional specifications specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4
Case material—Aluminum alloy
Watch weight without strap—Approximately 44.5g without strap
Display material—AMOLED
Pixels per inch—326 ppi
Peak brightness—1,500 nits HBM
Cover / touchscreen—Supported
Packing list—Watch with bezel and strap; magnetic charging dock; user manual
Third-party fitness apps—Health Connect; Strava; Suunto synchronization
Release status—Available. Released 2024, October 29
Card slot—No
Camera—No
3.5 mm headphone jack—No
USB—No
Radio—No

Similarities

  • Both have NFC.
  • Both are water resistant to 50 m.
  • Both take calls over Bluetooth.
  • Both have OLED displays.
  • Both have similar screen sizes (1.5 and 1.43 inches).
  • Both connect over Bluetooth.

In summary

Get the Xiaomi Watch S4 if you want longer battery life and a choice of Android phone or iPhone, or the Samsung Galaxy Watch 6 Classic if you would rather have ECG heart-rhythm readings and a brighter screen for outdoor use.

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In-stock alternatives

Samsung Galaxy Watch 6For Samsung Galaxy Watch 6 ClassicSamsung Galaxy Watch 6View product ↗Samsung Galaxy Watch 7For Samsung Galaxy Watch 6 ClassicSamsung Galaxy Watch 7View product ↗Amazfit Active 2 Premium RoundFor Xiaomi Watch S4Amazfit Active 2 Premium RoundView product ↗Huawei Watch GT 5For Xiaomi Watch S4Huawei Watch GT 5View product ↗

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