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Wearable comparison

Samsung Galaxy Watch 6 vs Xiaomi Watch S4 41mm

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Samsung Galaxy Watch 6

Samsung Galaxy Watch 6

  • Screen: 44 mm: 480 × 480 pixels; 40 mm: 432 × 432 pixels.
  • Exynos W930 processor.
  • 2 GB RAM in this version.
  • 16 GB storage in this version.
  • Runs Wear OS 4; One UI 5 Watch.
KSh 22,500In Stock
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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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Samsung Galaxy Watch 8KSh 27,500
Samsung Galaxy Watch FEKSh 19,500
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Amazfit Active 2 Premium RoundKSh 22,000
Samsung Galaxy Watch 6 ClassicKSh 22,500
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Huawei Watch GT 5KSh 21,500
2 of 4 products

Our quick verdict

The Samsung Galaxy Watch 6 takes ECG heart-rhythm readings, has a larger 1.5-inch, brighter screen and offers hypertension notifications, while the Xiaomi Watch S4 41mm lasts longer between charges (up to 8 days) and works with Android phones and iPhones.

Display

Samsung Galaxy Watch 6
44 mm: 480 × 480 pixels; 40 mm: 432 × 432 pixels
Xiaomi Watch S4 41mm
466 × 466 pixels; 352 ppi

Software

Samsung Galaxy Watch 6
Runs Wear OS 4; One UI 5 Watch
Xiaomi Watch S4 41mm
Runs Xiaomi HyperOS 3

Connections

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

Battery life

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

Portability

Samsung Galaxy Watch 6
33.3 g
Xiaomi Watch S4 41mm
About 32 g

Key differences

The main differences to help you choose.

Samsung Galaxy Watch 6

  • Larger 1.5-inch screen (vs 1.32-inch).
  • Brighter display: up to 2,000 nits (vs 1,500).
  • ECG heart-rhythm readings.
  • eSIM.
  • 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.
  • 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 6Xiaomi 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
SoftwareWear OS 4Xiaomi HyperOS 3
ConnectionsBluetooth 5.3Bluetooth 5.4
Battery capacity44 mm: 425 mAh320 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 6Xiaomi Watch S4 41mm
Display44 mm: 1.5-inch Super AMOLED; 40 mm: 1.3-inch Super AMOLED1.32-inch AMOLED
Screen resolution44 mm: 480 × 480 pixels; 40 mm: 432 × 432 pixels466 × 466 pixels; 352 ppi
Display protectionSapphire crystalScratch/drop-proof glass
Display features2000 nits (peak)60 Hz refresh rate; up to 1,500 nits HBM

Connectivity

Connectivity specifications comparison
SpecificationSamsung Galaxy Watch 6Xiaomi Watch S4 41mm
Network / cellularGSM / HSPA / LTENo cellular connectivity
SIM / eSIMeSIMNo
Wi-FiWi-Fi 2.4 GHz + 5 GHzNo
BluetoothBluetooth 5.3Bluetooth 5.4
NFCSupportedYes (market/region dependent)
Positioning / GNSSGPS; GLONASS; BeiDou; GalileoGPS; Galileo; GLONASS; BeiDou; QZSS

Identity & design

Identity & design specifications comparison
SpecificationSamsung Galaxy Watch 6Xiaomi Watch S4 41mm
BrandSamsungXiaomi
ModelSamsung Galaxy Watch 6Xiaomi Watch S4 41mm
Announced2023, July 262025, June 26
Dimensions44 mm: 42.8 × 44.4 × 9.0 mm; 40 mm: 38.8 × 40.4 × 9.0 mm41.2 × 41.2 × 9.5 mm, excluding strap and protrusions
Weight44 mm: 33.3 g; 40 mm: 28.7 g, without bandApproximately 32 g without strap
Build materialsArmor Aluminum caseStainless-steel frame
Controls / buttonsTouchscreen and physical buttonsRotatable crown and lower button
Wrist size—120–190 mm (black, mint green, white); 130–190 mm (sunset gold)
Strap / band—Fluororubber (black, mint green); leather (white); Milanese (sunset gold)

Performance & software

Performance & software specifications comparison
SpecificationSamsung Galaxy Watch 6Xiaomi Watch S4 41mm
ProcessorExynos W930—
CPUDual-core 1.4 GHz—
GPUMali-G68—
RAM2 GB—
Storage16 GB—
Operating systemWear OS 4; One UI 5 WatchXiaomi HyperOS 3

Audio & communication

Audio & communication specifications comparison
SpecificationSamsung Galaxy Watch 6Xiaomi Watch S4 41mm
SpeakerSupportedSupported
MicrophoneSupported1 microphone
CallingBluetooth calling with a connected smartphone; standalone calling on LTE editionsBluetooth calling with a connected smartphone

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationSamsung Galaxy Watch 6Xiaomi Watch S4 41mm
SensorsSamsung BioActive: optical heart-rate, electrical heart signal, bioelectrical impedance analysis; temperature; accelerometer; barometer; gyroscope; geomagnetic; light sensorHeart-rate and blood-oxygen sensor; accelerometer; gyroscope; ambient-light sensor; electronic compass; barometer; temperature sensor
Health & wellness featuresHeart-rate monitoring, ECG, blood pressure, body composition, blood oxygen and skin-temperature features; availability varies by market and paired phoneHeart rate, blood oxygen, stress and skin-temperature monitoring; supported cycle predictions; general wellness information
Sleep trackingSleep tracking and sleep coachingSleep tracking, sleep trend reports and supported improvement plan
Sports / workout modesMultiple workout modes with automatic workout detection150+ sports modes
Training & outdoor featuresGPS workout tracking and personalised heart-rate zonesWorkout reports; training effects, load and recovery; BLE heart-rate broadcasting to compatible bike computers
Safety & emergency featuresFall detection and SOS features when configuredEmergency 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 6Xiaomi Watch S4 41mm
Battery capacity44 mm: 425 mAh; 40 mm: 300 mAh320 mAh
Battery lifeUp to 40 hours with AOD off; 30 hours with AOD onUp to 8 days light use; 4 days normal use; 3 days heavy use
ChargingFast wireless charging, WPC-based2-pin magnetic charging dock
Water resistance5 ATM; IP685 ATM
Durability / certificationsMIL-STD-810H—

Compatibility

Compatibility specifications comparison
SpecificationSamsung Galaxy Watch 6Xiaomi Watch S4 41mm
Phone compatibilityAndroid 10.0 or later; more than 1.5 GB RAMAndroid 8.0 or later; iOS 14.0 or later
Companion appGalaxy Wearable; Samsung HealthMi Fitness
Colors44 mm: Graphite, Silver; 40 mm: Graphite, GoldBlack; mint green; white; sunset gold

Additional specifications

Additional specifications specifications comparison
SpecificationSamsung Galaxy Watch 6Xiaomi Watch S4 41mm
Case materialArmor AluminumStainless steel
Release statusAvailable. Released 2023, August 11Available. Released 2025, June 26
Card slotNoNo
CameraNoNo
3.5 mm headphone jackNoNo
USBNoNo
RadioNoNo
2G bandsGSM 850 / 900 / 1800 / 1900Not applicable
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100—
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 40, 66, 71—
Network speedHSPA, LTE—
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
Model numbers—M2502W1

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 1.32 inches).
  • Both connect over Bluetooth.

In summary

Get the Samsung Galaxy Watch 6 if you want ECG heart-rhythm readings and a larger 1.5-inch, brighter screen, or the Xiaomi Watch S4 41mm if you would rather have longer battery life and a choice of Android phone or iPhone.

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In-stock alternatives

Samsung Galaxy Watch 7For Samsung Galaxy Watch 6Samsung Galaxy Watch 7View product ↗Amazfit Active 2 Premium RoundFor Samsung Galaxy Watch 6Amazfit Active 2 Premium RoundView product ↗Xiaomi Watch S4For Xiaomi Watch S4 41mmXiaomi Watch S4View product ↗

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