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Product comparison · 2 smartwatches

Amazfit T-Rex Ultra 2 vs Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch

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  • 35specifications compared
  • 18differ
  • 17identical
  • 67known for one product only

Key differences

The Amazfit T-Rex Ultra 2 has 8 mm more watch case size than the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch (51 mm vs 43 mm). The Amazfit T-Rex Ultra 2 has 5 ATM more water resistance than the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch (10 ATM vs 5 ATM). The Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch has 0.1 more Bluetooth version than the Amazfit T-Rex Ultra 2 (5.3 vs 5.2). Display resolution: 480 x 480 pixels on the Amazfit T-Rex Ultra 2, 432 x 432 pixels on the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch. Display diagonal: 129.5 cm (51") on the Amazfit T-Rex Ultra 2, 3.3 cm (1.3") on the Samsung Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch.

  • Display resolution
    • 480 x 480 pixels
    • 432 x 432 pixels
  • Display diagonal
    • 129.5 cm (51")
    • 3.3 cm (1.3")
  • Display technology
    • AMOLED
    • OLED
  • Market positioning
    • Sport watch
    • Smartwatch
  • Watch case size
    • 51 mm
    • 43 mm
  • Watch case colour
    • Titanium
    • Black
  • Band colour
    • Black, Brown
    • Black
  • Band size
    • One Size
    • M/L

Side by side

Differences highlightedShow differences only
102 specifications
A

Amazfit

T-Rex Ultra 2View product
B

Samsung

Galaxy Watch6 Classic SM-R955FZKAXAC smartwatch / sport watch

Model SM-R955FZKAXAC

View product
Display3 differ
Display resolutionDiffers480 x 480 pixels432 x 432 pixels
Display diagonalDiffers129.5 cm (51")3.3 cm (1.3")
Display technologyDiffersAMOLEDOLED
Display technology marketing nameKnown for oneSuper AMOLED
Always-on displayKnown for oneYes
Colour displayKnown for oneYes
Display number of coloursKnown for one16 million colours
Display diameterKnown for one3.33 cm
Display brightnessKnown for one3000 cd/m²
Pixel densityKnown for one322 ppi
BacklightKnown for oneYes
Processoridentical
Processor manufacturerKnown for oneSamsung
Processor frequencyKnown for one1400 MHz
Processor coresKnown for one2
Design7 differ
Market positioningDiffersSport watchSmartwatch
Watch case sizeDiffers51 mm43 mm
Watch case colourDiffersTitaniumBlack
Watch case materialDiffersTitanium, Glass Fiber Reinforced Polymer (GFRP)Stainless steel
Band colourDiffersBlack, BrownBlack
Band sizeDiffersOne SizeM/L
International Protection (IP) codeKnown for oneIP68
Removable strapKnown for oneYes
Water resistanceDiffers10 ATM5 ATM
Band materialKnown for oneSilicone
Wrist size rangeKnown for one145 - 215 mm
Magnetic charging connectorKnown for oneYes
Waterproof up toKnown for one45 m
Performance2 differ
FM radioKnown for oneNo
Mobile operating systems supportedDiffersAndroid 7.0, Android 7.1, Android 7.1.2, Android 8.0, Android 8.1, Android 9.0, Android 10, Android 10.0, Android 11.0, Android 12.0, Android 13.0, Android 14.0, Android 15, Android 16, iOS 15, iOS 16, iOS 17, iOS 18, iOS 26Android
Operating system installedDiffersZepp OSWear OS
RAM capacityKnown for one2000 MB
Flash memoryKnown for one16 GB
Featuresidentical
Blood pressure monitorKnown for oneYes
Multisport modeKnown for oneYes
SOS alert functionKnown for oneYes
RefurbishedKnown for oneNo
BarometerKnown for oneYes
Blood oxygen sensorKnown for oneYes
Sleep apnea detectionKnown for oneYes
Built-in speedometerKnown for oneYes
Alarm clockKnown for oneYes
Ambient light sensorKnown for oneYes
Barometric altimeterKnown for oneYes
Call notificationsKnown for oneYes
Electronic compassKnown for oneYes
Find my phone functionKnown for oneYes
Interval trainingKnown for oneYes
Recommended activityKnown for oneRunning, Cycling, Walking, Swimming, Climbing, Hiking, Fishing, Hunting, Skateboarding, Motor sports, Yoga, Pilates, HIIT, Gymnastics, Dance, Boxing, Kickboxing, Hockey, Football, Basketball, Volleyball, Tennis, Handball, Golf, Skiing, Diving
SMS notificationsKnown for oneYes
Smart notificationsKnown for oneYes
StopwatchKnown for oneYes
Stress monitoring functionKnown for oneYes
Sun & moon informationKnown for oneYes
Virtual pacer functionKnown for oneYes
Weather displayKnown for oneYes
World time functionKnown for oneYes
Networkidentical
Mobile network connectionKnown for oneYes
Mobile network generationKnown for one4G
3G standardsKnown for oneUMTS
4G standardKnown for oneLTE-TDD & LTE-FDD
3G bands supportedKnown for one2100,1900,850,900 MHz
4G bands supportedKnown for one2100,1900,1800,850,900,2600,700,800,600 MHz
BeiDouKnown for oneYes
GLONASSKnown for oneYes
GalileoKnown for oneYes
Ports & interfaces1 differ
USB portKnown for oneNo
Wi-Fi standardsKnown for one802.11g, Wi-Fi 4 (802.11n), 802.11b, 802.11a
BluetoothKnown for oneYes
Bluetooth versionDiffers5.25.3
Headphone connectivityKnown for oneBluetooth
Bluetooth Low Energy (BLE)Known for oneYes
Poweridentical
Battery capacityKnown for one300 Wh
Battery life (max)Known for one30 h
Battery lifeKnown for one30 day(s)
Battery life (GPS mode)Known for one177 h
Battery1 differ
Battery replacement accessibilityKnown for oneNon-removable
Battery capacityDiffers870 mAh300 mAh
Weight & dimensions4 differ
WidthDiffers51 mm42.5 mm
DepthDiffers51 mm42.5 mm
ThicknessDiffers1.43 cm1.09 cm
WeightDiffers89.2 g52 g
Softwareidentical
Sports activity appsKnown for oneStrava, RunKeeper, TrainingPeaks
Other featuresidentical
Number of sports modesKnown for one187
Packaging contentidentical
Charging baseKnown for oneYes
ManualKnown for oneYes

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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