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Watch comparison

Samsung Galaxy 6 vs Samsung Galaxy 8

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
Samsung Galaxy Watch 8

Samsung Galaxy Watch 8

  • Screen: 44 mm: 480 × 480 pixels; 40 mm: 438 × 438 pixels.
  • Exynos W1000, 3 nm processor.
  • 2 GB RAM in this version.
  • 32 GB storage in this version.
  • Runs Wear OS 6; One UI 8 Watch.
KSh 27,500In Stock
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2 of 4 products

Our quick verdict

With the same 2 GB of RAM and IP68 rating, the Samsung Galaxy Watch 6 takes ECG heart-rhythm readings and offers hypertension notifications, while the Samsung Galaxy Watch 8 has a brighter screen for outdoor use and more storage (32 GB).

Display

Samsung Galaxy Watch 6
44 mm: 480 × 480 pixels; 40 mm: 432 × 432 pixels
Samsung Galaxy Watch 8
44 mm: 480 × 480 pixels; 40 mm: 438 × 438 pixels

Performance

Samsung Galaxy Watch 6
Exynos W930 processor
Samsung Galaxy Watch 8
Exynos W1000, 3 nm processor

Storage

Samsung Galaxy Watch 6
16 GB storage in this version
Samsung Galaxy Watch 8
32 GB storage in this version

Software

Samsung Galaxy Watch 6
Runs Wear OS 4; One UI 5 Watch
Samsung Galaxy Watch 8
Runs Wear OS 6; One UI 8 Watch

Battery life

Samsung Galaxy Watch 6
Up to 40 hours per charge
Samsung Galaxy Watch 8
44 mm: 435 mAh, 40 mm: 325 mAh

Key differences

The main differences to help you choose.

Samsung Galaxy Watch 6

  • ECG heart-rhythm readings.
  • Blood-pressure (hypertension) notifications.

Samsung Galaxy Watch 8

  • Brighter display: up to 3,000 nits (vs 2,000).
  • More storage: 32 GB (vs 16 GB).
  • Newer model: released in 2025 (vs 2023).
  • Newer Wear OS 6 (vs Wear OS 4).

What matters most to you?

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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 6Samsung Galaxy Watch 8
Battery lifeUp to 40 hours per charge44 mm: 435 mAh, 40 mm: 325 mAh
Storage16 GB storage32 GB storage
Display1.5-inch OLED display1.47-inch OLED display
PerformanceExynos W930 processorExynos W1000 processor
Memory2 GB RAM2 GB RAM
SoftwareWear OS 4Wear OS 6

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
Display44 mm: 1.5-inch Super AMOLED; 40 mm: 1.3-inch Super AMOLED44 mm: 1.47-inch Super AMOLED; 40 mm: 1.34-inch Super AMOLED
Screen resolution44 mm: 480 × 480 pixels; 40 mm: 432 × 432 pixels44 mm: 480 × 480 pixels; 40 mm: 438 × 438 pixels
Display protectionSapphire crystalSapphire crystal
Display features2000 nits (peak)Full-colour always-on display

Connectivity

Connectivity specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
Network / cellularGSM / HSPA / LTEGSM / HSPA / LTE
SIM / eSIMeSIMeSIM
Wi-FiWi-Fi 2.4 GHz + 5 GHzWi-Fi 2.4 GHz + 5 GHz
BluetoothBluetooth 5.3Bluetooth 5.3
NFCSupportedSupported
Positioning / GNSSGPS; GLONASS; BeiDou; GalileoDual-frequency GPS, L1 + L5; GLONASS; BeiDou; Galileo

Identity & design

Identity & design specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
BrandSamsungSamsung
ModelSamsung Galaxy Watch 6Samsung Galaxy Watch 8
Announced2023, July 262025, July 09
Dimensions44 mm: 42.8 × 44.4 × 9.0 mm; 40 mm: 38.8 × 40.4 × 9.0 mm44 mm: 43.7 × 46.0 × 8.6 mm; 40 mm: 40.4 × 42.7 × 8.6 mm
Weight44 mm: 33.3 g; 40 mm: 28.7 g, without band44 mm: 34.0 g; 40 mm: 30.0 g, without band
Build materialsArmor Aluminum caseArmor Aluminum case
Controls / buttonsTouchscreen and physical buttonsTouchscreen and physical buttons

Performance & software

Performance & software specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
ProcessorExynos W930Exynos W1000, 3 nm
CPUDual-core 1.4 GHz5-core
GPUMali-G68Mali-G68
RAM2 GB2 GB
Storage16 GB32 GB
Operating systemWear OS 4; One UI 5 WatchWear OS 6; One UI 8 Watch

Audio & communication

Audio & communication specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
SpeakerSupportedSupported
MicrophoneSupportedSupported
CallingBluetooth calling with a connected smartphone; standalone calling on LTE editionsBluetooth calling with a connected smartphone; standalone calling on LTE editions

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
SensorsSamsung BioActive: optical heart-rate, electrical heart signal, bioelectrical impedance analysis; temperature; accelerometer; barometer; gyroscope; geomagnetic; light sensorSamsung BioActive: optical heart-rate, electrical heart signal, bioelectrical impedance analysis; temperature; accelerometer; barometer; gyroscope; geomagnetic; light sensor
Health & wellness featuresHeart-rate monitoring, ECG, blood pressure, body composition, blood oxygen and skin-temperature features; availability varies by market and paired phoneHeart and wellness tracking; Antioxidant Index, Vascular Load, Energy Score and stress features. Availability varies by market and paired phone.
Sleep trackingSleep tracking and sleep coachingSleep tracking, sleep coaching, Bedtime Guidance and sleep-apnoea features where available
Sports / workout modesMultiple workout modes with automatic workout detection—
Training & outdoor featuresGPS workout tracking and personalised heart-rate zonesRunning Coach and dual-frequency route tracking
Safety & emergency featuresFall detection and SOS features when configured—

Battery & durability

Battery & durability specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
Battery capacity44 mm: 425 mAh; 40 mm: 300 mAh44 mm: 435 mAh; 40 mm: 325 mAh
Battery lifeUp to 40 hours with AOD off; 30 hours with AOD on—
ChargingFast wireless charging, WPC-basedFast wireless charging, WPC-based
Water resistance5 ATM; IP685 ATM; IP68
Durability / certificationsMIL-STD-810HMIL-STD-810H

Compatibility

Compatibility specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
Phone compatibilityAndroid 10.0 or later; more than 1.5 GB RAMAndroid 12.0 or later; more than 1.5 GB RAM
Companion appGalaxy Wearable; Samsung HealthGalaxy Wearable; Samsung Health
Colors44 mm: Graphite, Silver; 40 mm: Graphite, GoldGraphite; Silver

Additional specifications

Additional specifications specifications comparison
SpecificationSamsung Galaxy Watch 6Samsung Galaxy Watch 8
Case materialArmor AluminumArmor Aluminum
Release statusAvailable. Released 2023, August 11Available. Released 2025, July 25
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 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 40, 66, 711, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 40, 66, 71
Network speedHSPA, LTEHSPA, LTE
Peak brightness—3,000 nits peak
Model numbers—SM-L320, SM-L325, SM-L330, SM-L335, SM-L325U, SM-L335U
SAR (EU)—0.15 W/kg (head) 0.78 W/kg (body)
Additional durability features—Armor Aluminum 2

Similarities

  • Both have 2 GB RAM.
  • Both are rated IP68.
  • Both have NFC.
  • Both have an aluminium case.
  • Both are water resistant to 50 m.
  • Both take calls over Bluetooth.

In summary

Get the Samsung Galaxy Watch 6 if you want ECG heart-rhythm readings and hypertension notifications, or the Samsung Galaxy Watch 8 if you would rather have a brighter screen for outdoor use and more storage.

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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 ↗Huawei Watch GT 6For Samsung Galaxy Watch 8Huawei Watch GT 6View product ↗

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