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Wearable comparison

Samsung Galaxy Watch 6 Classic vs Xiaomi Watch S4 41mm

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 41mm

Xiaomi Watch S4 41mm

  • Screen: 466 × 466 pixels; 352 ppi.
  • Runs Xiaomi HyperOS 3.
  • Bluetooth 5.4 connection.
  • 320 mAh battery capacity.
  • 5 ATM.
KSh 23,360In Stock
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2 of 4 products

Our quick verdict

The Xiaomi Watch S4 41mm lasts longer between charges (up to 8 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 larger 1.5-inch, brighter screen and offers hypertension notifications.

Display

Samsung Galaxy Watch 6 Classic
47 mm: 480 × 480 pixels; 43 mm: 432 × 432 pixels
Xiaomi Watch S4 41mm
466 × 466 pixels; 352 ppi

Connections

Samsung Galaxy Watch 6 Classic
Bluetooth 5.3 connection
Xiaomi Watch S4 41mm
Bluetooth 5.4 connection

Battery life

Samsung Galaxy Watch 6 Classic
Up to 40 hours per charge
Xiaomi Watch S4 41mm
320 mAh battery

Portability

Samsung Galaxy Watch 6 Classic
59 g
Xiaomi Watch S4 41mm
About 32 g

Software

Samsung Galaxy Watch 6 Classic
Wear OS Powered by Samsung
Xiaomi Watch S4 41mm
Xiaomi HyperOS 3

Key differences

The main differences to help you choose.

Samsung Galaxy Watch 6 Classic

  • Larger 1.5-inch screen (vs 1.32-inch).
  • Brighter display: up to 2,000 nits (vs 1,500).
  • ECG heart-rhythm readings.
  • Embedded SIM on LTE model.
  • Cellular option (LTE/5G models) for calls and data without your phone.
  • Blood-pressure (hypertension) notifications.

Xiaomi Watch S4 41mm

  • Longer rated battery life: up to 8 days (vs 40 hours).
  • Works with Android phones and iPhones.
  • Lighter: about 32 g (vs 59 g).
  • Slimmer: 9.5 mm thick (vs 10.9 mm).
  • Newer Bluetooth 5.4 (vs 5.3).
  • Newer model: released in 2025 (vs 2023).

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 41mm
Battery lifeUp to 40 hours per charge320 mAh battery
Display1.5-inch OLED display1.32-inch OLED display, 60 Hz, 352 ppi
ConnectionsWi-Fi 4, Bluetooth 5.3Bluetooth 5.4
SoftwareWear OS Powered by SamsungXiaomi HyperOS 3
Battery capacity47 mm: 425 mAh typical320 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 41mm
Display47 mm: 1.5-inch Super AMOLED; 43 mm: 1.3-inch Super AMOLED1.32-inch AMOLED
Screen resolution47 mm: 480 × 480 pixels; 43 mm: 432 × 432 pixels466 × 466 pixels; 352 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 41mm
Network / cellularLTE model: GSM, HSPA and LTENo cellular connectivity
SIM / eSIMEmbedded SIM on LTE modelNo
Wi-FiWi-Fi 802.11 a/b/g/n, 2.4 GHz and 5 GHzNo
BluetoothBluetooth 5.3Bluetooth 5.4
NFCSupportedYes (market/region dependent)
Positioning / GNSSGPS, GLONASS, Galileo and BeiDouGPS; Galileo; GLONASS; BeiDou; QZSS

Identity & design

Identity & design specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4 41mm
BrandSamsungXiaomi
ModelSamsung Galaxy Watch6 ClassicXiaomi Watch S4 41mm
Announced26 July 20232025, June 26
Dimensions47 mm: 46.5 × 46.5 × 10.9 mm; 43 mm: 42.5 × 42.5 × 10.9 mm41.2 × 41.2 × 9.5 mm, excluding strap and protrusions
Weight47 mm: 59.0 g without strap; 43 mm: 52.0 g without strapApproximately 32 g without strap
Build materialsStainless-steel frame; sapphire-crystal frontStainless-steel frame
Strap / band20 mm Hybrid Eco-Leather Band; standard 20 mm straps compatibleFluororubber (black, mint green); leather (white); Milanese (sunset gold)
Controls / buttonsPhysical rotating bezel; two side buttons; touchscreenRotatable crown and lower button
Wrist size—120–190 mm (black, mint green, white); 130–190 mm (sunset gold)

Performance & software

Performance & software specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4 41mm
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 3

Audio & communication

Audio & communication specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4 41mm
SpeakerBuilt-in loudspeakerSupported
CallingBluetooth calling; LTE model supports standalone cellular callingBluetooth calling with a connected smartphone
Microphone—1 microphone

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4 41mm
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; temperature 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 and skin-temperature monitoring; supported cycle predictions; general wellness information
Sleep trackingSleep-stage tracking, sleep score, snore detection and Advanced Sleep CoachingSleep tracking, sleep trend reports and supported improvement plan
Sports / workout modesAutomatic workout detection and Samsung Health exercise tracking150+ sports modes
Training & outdoor featuresPersonalised heart-rate zones; running analysis; route workout and Track BackWorkout reports; training effects, load and recovery; BLE heart-rate broadcasting to compatible bike computers
Safety & emergency featuresFall detection and emergency SOS features through a compatible phone or LTE serviceEmergency SOS and supported skiing fall detection require prior setup, emergency contacts and connected Mi Fitness app; detection is not guaranteed; SMS and location features depend on supported phone OS

Battery & durability

Battery & durability specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4 41mm
Battery capacity47 mm: 425 mAh typical; 43 mm: 300 mAh typical320 mAh
Battery lifeUp to 40 hours with Always-On Display off; up to 30 hours with Always-On Display onUp to 8 days light use; 4 days normal use; 3 days heavy 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 41mm
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; mint green; white; sunset gold

Additional specifications

Additional specifications specifications comparison
SpecificationSamsung Galaxy Watch 6 ClassicXiaomi Watch S4 41mm
Case material—Stainless steel
Watch weight without strap—Approximately 32g without strap
Pixels per inch—352 ppi
Peak brightness—1,500 nits HBM
Cover / touchscreen—AMOLED touchscreen
Heavy-use battery life—Up to 3 days under manufacturer heavy-use tests
Packing list—Watch; magnetic charging dock; user manual
Display—1.32-inch AMOLED; 466 × 466; 352ppi
Brightness / refresh—Up to 1500nits HBM full screen; up to 60Hz depending on interface
Size / weight—41.2 × 41.2 × 9.5mm; approximately 32g without strap
Strap options—Black / Mint Green: fluororubber; White: leather; Sunset Gold: Milanese
Wrist fit—Black, Mint Green and White: approximately 120–190mm; Sunset Gold: approximately 130–190mm
Battery—320mAh; up to 8 days light / 4 days normal / 3 days heavy under tests
Positioning—Five-system independent dual-frequency L1 + L5 GNSS
Wireless / calls—Bluetooth 5.4; connected-phone calls
System / app—Xiaomi HyperOS 3; Mi Fitness
Phone compatibility—Android 8.0+; iOS 14.0+
Water resistance—5ATM; appropriate shallow-water use; no hot showers, saunas or diving; protect leather strap from water
Package—One Xiaomi Watch S4 41mm with selected strap, magnetic charging dock, user manual including warranty notice
Release status—Available. Released 2025, June 26
Model numbers—M2502W1
Card slot—No
Camera—No
3.5 mm headphone jack—No
USB—No
Radio—No
2G bands—Not applicable
3G bands——
4G bands——

Similarities

  • Both have NFC.
  • Both have a stainless steel case.
  • Both are water resistant to 50 m.
  • Both take calls over Bluetooth.
  • Both have OLED displays.
  • Both have similar screen sizes (1.5 and 1.32 inches).

In summary

Get the Xiaomi Watch S4 41mm 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 larger 1.5-inch, brighter screen.

Back to compared products ↑

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 ↗

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