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Wearable comparison

Samsung Galaxy Watch Ultra 2025 vs Google Pixel Watch 4

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Samsung Galaxy Watch Ultra 2025

Samsung Galaxy Watch Ultra 2025

  • Screen: 480 × 480 pixels.
  • Exynos W1000, 3 nm processor.
  • 2 GB RAM in this version.
  • 64 GB storage in this version.
  • Runs Wear OS 6; One UI 8 Watch.
KSh 44,000In Stock
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02
Google Pixel Watch 4

Google Pixel Watch 4

  • Qualcomm Snapdragon W5 Gen 2; Cortex-M55 coprocessor processor.
  • 2 GB RAM in this version.
  • 32 GB storage in this version.
  • Runs Wear OS 6.
  • Wi-Fi 6 support.
KSh 44,500In Stock
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Samsung Galaxy Watch 9 44mmKSh 42,000
Huawei Watch GT 7 ProKSh 41,500
WHOOP Peak 5.0 SensorKSh 38,000
Samsung Galaxy Watch 9 40mmKSh 39,500
Samsung Galaxy Watch 8 ClassicKSh 38,500
Google Pixel Watch 5 41mmKSh 42,000
AmazFit T-Rex UltraKSh 47,000
2 of 4 products

Our quick verdict

With the same 2 GB of RAM and IP68 rating, the Samsung Galaxy Watch Ultra 2025 lasts longer per charge (80 hours) and has a larger 1.5-inch, sharper screen and a premium titanium build, while the Google Pixel Watch 4 is lighter to wear all day and syncs with apps such as Strava.

Performance

Samsung Galaxy Watch Ultra 2025
Exynos W1000, 3 nm processor
Google Pixel Watch 4
Qualcomm Snapdragon W5 Gen 2; Cortex-M55 coprocessor processor

Storage

Samsung Galaxy Watch Ultra 2025
64 GB storage in this version
Google Pixel Watch 4
32 GB storage in this version

Software

Samsung Galaxy Watch Ultra 2025
Runs Wear OS 6; One UI 8 Watch
Google Pixel Watch 4
Runs Wear OS 6

Connections

Samsung Galaxy Watch Ultra 2025
Bluetooth 5.3 connection
Google Pixel Watch 4
Bluetooth 6.0 connection

Battery life

Samsung Galaxy Watch Ultra 2025
Up to 80 hours per charge
Google Pixel Watch 4
Up to 30 hours per charge

Key differences

The main differences to help you choose.

Samsung Galaxy Watch Ultra 2025

  • Rated for up to 80 hours per charge (vs 30).
  • Larger 1.5-inch screen (vs 1.2-inch).
  • Titanium case (vs aluminium case).
  • More storage: 64 GB (vs 32 GB).
  • Swimproof: water resistant to 100 m (vs 50 m).
  • Higher screen resolution: 480 × 480 (vs 408 × 408).

Google Pixel Watch 4

  • Lighter: 31 g (vs 60.5 g).
  • Syncs with third-party apps such as Strava and Apple Health.
  • Newer Bluetooth 6.0 (vs 5.3).

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.

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6 priorities selected.
How each product answers the selected priorities
PrioritySamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
Battery lifeUp to 80 hours per chargeUp to 30 hours per charge
Storage64 GB storage32 GB storage
Display1.5-inch OLED display1.2-inch OLED display, 60 Hz, 320 ppi
PerformanceExynos W1000 processorQualcomm Snapdragon W5 Gen 2 processor
ConnectionsBluetooth 5.3Wi-Fi 6, Bluetooth 6.0
Battery capacity590 mAh battery41 mm: 325 mAh

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
Display1.5-inch Super AMOLED41 mm: 1.2-inch; 45 mm: 1.4-inch Actua 360 LTPO AMOLED
Screen resolution480 × 480 pixels41 mm: 408 × 408; 45 mm: 456 × 456 pixels; 320 ppi
Display protectionSapphire crystal3D Corning Gorilla Glass 5
Display featuresFull-colour always-on displayAlways-on display; 1–60 Hz; DCI-P3 colour

Connectivity

Connectivity specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
Network / cellularGSM / HSPA / LTELTE and UMTS on cellular editions
SIM / eSIMeSIMLTE edition: eSIM
Wi-FiWi-Fi 2.4 GHz + 5 GHzWi-Fi 802.11a/b/g/n/ac/ax; 2.4 GHz + 5 GHz
BluetoothBluetooth 5.3Bluetooth 6.0
NFCSupportedSupported
Positioning / GNSSDual-frequency GPS, L1 + L5; GLONASS; BeiDou; GalileoDual-band L1 + L5; GPS; Galileo; GLONASS; BeiDou; QZSS
Ultra Wideband (UWB)—Supported
Satellite features—Satellite SOS on LTE edition; regional availability

Identity & design

Identity & design specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
BrandSamsungGoogle
ModelSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
Announced2024, July 102025, August 20
Dimensions47.1 × 47.4 × 12.1 mm41 mm or 45 mm diameter × 12.3 mm height
Weight60.5 g without band41 mm: 31 g; 45 mm: 36.7 g, without band
Build materialsTitanium caseAluminum case
Controls / buttonsTouchscreen; Quick button; Home and Back buttons; Double Pinch gestureHaptic crown; side button; touchscreen; Gen 3 premium haptics
Wrist size—41 mm: small 130–175 mm, large 165–210 mm; 45 mm: small 150–185 mm, large 165–215 mm
Strap / band—Active Band; fluoroelastomer

Performance & software

Performance & software specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
ProcessorExynos W1000, 3 nmQualcomm Snapdragon W5 Gen 2; Cortex-M55 coprocessor
CPU5-coreQuad-core (4x1.7 GHz Cortex-A53)
GPUMali-G68Adreno A702
RAM2 GB2 GB SDRAM
Storage64 GB32 GB eMMC
Operating systemWear OS 6; One UI 8 WatchWear OS 6

Audio & communication

Audio & communication specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
SpeakerSupportedSupported
MicrophoneSupportedSupported
CallingBluetooth calling with a connected smartphone; standalone calling on LTE editionsBluetooth calling; LTE model supports cellular and supported Satellite SOS emergency communication

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
SensorsSamsung BioActive: optical heart-rate, electrical heart signal, bioelectrical impedance analysis; temperature; accelerometer; barometer; gyroscope; geomagnetic; light sensorCompass; altimeter; red and infrared SpO₂ sensors; electrical ECG sensors; multipath optical heart-rate sensor; accelerometer; gyroscope; ambient-light sensor; cEDA skin-conductance sensor; far-field skin-temperature sensor; barometer; magnetometer
Health & wellness featuresHeart-rate monitoring, ECG, blood pressure, body composition, blood oxygen, skin temperature, Energy Score, Antioxidant Index and Vascular Load; availability varies by market and paired phoneContinuous heart rate; ECG; SpO₂; skin temperature; stress tracking; cEDA
Sleep trackingSleep tracking, Bedtime Guidance, sleep coaching and sleep-apnoea features where availableSleep stages; sleep score; overnight health metrics
Sports / workout modesMultiple workout modes including multisport and automatic workout detectionAutomatic activity detection and exercise tracking for running, weightlifting, tennis and other activities
Training & outdoor featuresDual-frequency GPS; GPX routes; Track Back; Running Coach; personalised heart-rate zones; Functional Threshold PowerOn-device GPS; custom run workouts; weekly mileage; advanced run metrics and form insights; cardio load, target cardio load, readiness and personalised coaching
Safety & emergency featuresFall detection, SOS and siren features when configuredEmergency SOS; fall detection; safety check

Battery & durability

Battery & durability specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
Battery capacity590 mAh41 mm: 325 mAh; 45 mm: 455 mAh
Battery lifeUp to 80 hours with Always-On Display off; up to 60 hours with Always-On Display on; up to 100 hours in Power Saving Mode41 mm: 30 hours AOD, 48 hours Battery Saver; 45 mm: 40 hours AOD, 72 hours Battery Saver
ChargingFast wireless charging, WPC-basedUSB-C magnetic pin charging
Water resistance10 ATM; IP685 ATM; IP68
Durability / certificationsMIL-STD-810HIP68 ingress protection; Corning Gorilla Glass 5

Compatibility

Compatibility specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
Phone compatibilityAndroid 11.0 or later; more than 1.5 GB RAMAndroid 11 or later; Google account
Companion appGalaxy Wearable; Samsung HealthGoogle Pixel Watch; Fitbit
ColorsTitanium Silver; Titanium Gray; Titanium White; Titanium Blue41 mm: Obsidian, Porcelain, Lemongrass, Iris; 45 mm: Obsidian, Porcelain, Moonstone

Additional specifications

Additional specifications specifications comparison
SpecificationSamsung Galaxy Watch Ultra 2025Google Pixel Watch 4
Case materialTitanium100% recycled aluminum
Release statusAvailable. Released 2024, July 24Available. Released 2025, October 09
Model numbersSM-L705F, SM-L705N, SM-L705U—
Card slotNoNo
CameraNoNo
3.5 mm headphone jackNoNo
USBNoNo
RadioNoNo
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 40, 66, 71LTE
Network speedHSPA, LTEHSPA, LTE
SAR (EU)0.11 W/kg (head) 0.36 W/kg (body)—
Pixels per inch—320 ppi
Peak brightness—3,000 nits peak; 1 nit minimum
Charging time—41 mm: 15/25/45 minutes to 50/80/100%; 45 mm: 15/30/60 minutes
Packing list—Watch; small and large bands; charging dock or cable; quick start guide
Third-party fitness apps—Google Play apps; Google Maps; Google Wallet; Google Assistant

Similarities

  • Both have 2 GB RAM.
  • Both are rated IP68.
  • Both have NFC.
  • Both take ECG readings.
  • Both take calls over Bluetooth.
  • Both have OLED displays.

In summary

For most buyers the Samsung Galaxy Watch Ultra 2025 is the better buy; the Google Pixel Watch 4 makes sense if you want a lighter watch for all-day wear.

Back to compared products ↑

In-stock alternatives

Samsung Galaxy Watch UltraFor Samsung Galaxy Watch Ultra 2025Samsung Galaxy Watch UltraView product ↗Samsung Galaxy Watch 9 44mmFor Samsung Galaxy Watch Ultra 2025Samsung Galaxy Watch 9 44mmView product ↗Huawei Watch GT 7 ProFor Google Pixel Watch 4Huawei Watch GT 7 ProView product ↗Amazfit Balance 3For Google Pixel Watch 4Amazfit Balance 3View product ↗

Related comparisons

Samsung Galaxy Watch Ultra 2025Samsung Galaxy Watch 9 44mmSamsung Galaxy Watch Ultra 2025Huawei Watch GT 7 ProSamsung Galaxy Watch Ultra 2025WHOOP Peak 5.0 SensorSamsung Galaxy Watch Ultra 2025Samsung Galaxy Watch 9 40mmSamsung Galaxy Watch 8 ClassicSamsung Galaxy Watch Ultra 2025Samsung Galaxy Watch Ultra 2025Google Pixel Watch 5 41mmAmazFit T-Rex UltraSamsung Galaxy Watch Ultra 2025Samsung Galaxy Watch UltraSamsung Galaxy Watch Ultra 2025Samsung Galaxy Watch Ultra 2025Huawei Watch 6 Pro 43 mm
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