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Product comparison · 2 smartwatches

Samsung Galaxy Watch Ultra2 vs Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch

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  • 54specifications compared
  • 24differ
  • 30identical
  • 28known for one product only

Key differences

The Samsung Galaxy Watch Ultra2 has 700 MHz more processor frequency than the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch (2100 MHz vs 1400 MHz). The Samsung Galaxy Watch Ultra2 has 3 more processor cores than the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch (5 vs 2). The Samsung Galaxy Watch Ultra2 has 4 mm more watch case size than the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch (47 mm vs 43 mm). Display resolution: 498 x 498 pixels on the Samsung Galaxy Watch Ultra2, 432 x 432 pixels on the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch. Display diagonal: 3.81 cm (1.5") on the Samsung Galaxy Watch Ultra2, 3.3 cm (1.3") on the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch.

  • Display resolution
    • 498 x 498 pixels
    • 432 x 432 pixels
  • Display diagonal
    • 3.81 cm (1.5")
    • 3.3 cm (1.3")
  • Display technology
    • AMOLED
    • OLED
  • Processor manufacturer
    • Qualcomm
    • Samsung
  • Processor frequency
    • 2100 MHz
    • 1400 MHz
  • Processor cores
    • 5
    • 2
  • Watch case size
    • 47 mm
    • 43 mm
  • Watch case colour
    • Grey
    • Black

Side by side

Differences highlightedShow differences only
82 specifications
A

Samsung

Galaxy Watch Ultra2View product
B

Samsung

Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch

Model SM-R955FZKAXAC

View product
Display3 differ
Display resolutionDiffers498 x 498 pixels432 x 432 pixels
Display diagonalDiffers3.81 cm (1.5")3.3 cm (1.3")
Display technologyDiffersAMOLEDOLED
Colour displayKnown for oneYes
Display diameterKnown for one3.33 cm
Watch glass typeKnown for oneSapphire
Pixel densityKnown for one329 ppi
Processor3 differ
Processor manufacturerDiffersQualcommSamsung
Processor frequencyDiffers2100 MHz1400 MHz
Processor coresDiffers52
Design6 differ
Watch case sizeDiffers47 mm43 mm
Watch case colourDiffersGreyBlack
Watch case materialDiffersTitaniumStainless steel
Band colourDiffersGreyBlack
Band sizeKnown for oneM/L
International Protection (IP) codeDiffersIP69KIP68
Removable strapKnown for oneYes
Water resistanceDiffers10 ATM5 ATM
Lens materialKnown for oneSapphire
Suggested genderKnown for oneUnisex
Buckle colourKnown for oneGrey
Closure typeKnown for oneDouble prong strap buckle
Performance1 differ
FM radioKnown for oneNo
Flash memoryDiffers64 GB16 GB
Featuresidentical
Blood pressure monitorKnown for oneYes
Multisport modeKnown for oneYes
Quality of sleepKnown for oneYes
SOS alert functionKnown for oneYes
RefurbishedKnown for oneNo
Heart rate sensor typeKnown for oneOptical
Ambient light sensorKnown for oneYes
Audio formats supportedKnown for one3GA, AAC, AMR, AWB, M4A, MP3, OGA, OGG, WAV
Military standardKnown for oneMIL-STD-810H
Network3 differ
3G standardsDiffersWCDMAUMTS
3G bands supportedDiffers2100,900,1900,850,1700 MHz2100,1900,850,900 MHz
4G bands supportedDiffers2100,1800,850,2600,900,800,700,1900,2300,600,1700,2500,2000 MHz2100,1900,1800,850,900,2600,700,800,600 MHz
SIM card typeKnown for oneeSIM
Quasi-Zenith Satellite System (QZSS)Known for oneYes
Ports & interfaces2 differ
USB portKnown for oneNo
Wi-Fi standardsDiffersWi-Fi 4 (802.11n), 802.11g, 802.11b, 802.11a802.11g, Wi-Fi 4 (802.11n), 802.11b, 802.11a
Bluetooth versionDiffers6.05.3
Headphone connectivityKnown for oneBluetooth
Bluetooth profilesKnown for oneA2DP, AVRCP, HFP, HSP
Power1 differ
Battery capacityKnown for one300 Wh
Battery life (max)Differs80 h30 h
Battery1 differ
Battery replacement accessibilityKnown for oneNon-removable
Battery capacityDiffers800 mAh300 mAh
Weight & dimensions4 differ
WidthDiffers47.1 mm42.5 mm
DepthDiffers47.4 mm42.5 mm
ThicknessDiffers1.07 cm1.09 cm
WeightDiffers61.5 g52 g
Softwareidentical
Security update termKnown for one31 July 2031

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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