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Product comparison · 2 smartwatches

Amazfit T-Rex Ultra 2 vs Samsung Galaxy Watch Ultra2

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  • 34specifications compared
  • 16differ
  • 18identical
  • 67known for one product only

Key differences

The Samsung Galaxy Watch Ultra2 has 7 ppi more pixel density than the Amazfit T-Rex Ultra 2 (329 ppi vs 322 ppi). The Amazfit T-Rex Ultra 2 has 4 mm more watch case size than the Samsung Galaxy Watch Ultra2 (51 mm vs 47 mm). The Samsung Galaxy Watch Ultra2 has 0.8 more Bluetooth version than the Amazfit T-Rex Ultra 2 (6.0 vs 5.2). Display resolution: 480 x 480 pixels on the Amazfit T-Rex Ultra 2, 498 x 498 pixels on the Samsung Galaxy Watch Ultra2. Display diagonal: 129.5 cm (51") on the Amazfit T-Rex Ultra 2, 3.81 cm (1.5") on the Samsung Galaxy Watch Ultra2.

  • Display resolution
    • 480 x 480 pixels
    • 498 x 498 pixels
  • Display diagonal
    • 129.5 cm (51")
    • 3.81 cm (1.5")
  • Pixel density
    • 322 ppi
    • 329 ppi
  • Market positioning
    • Sport watch
    • Smartwatch
  • Watch case size
    • 51 mm
    • 47 mm
  • Watch case colour
    • Titanium
    • Grey
  • Band colour
    • Black, Brown
    • Grey
  • Operating system installed
    • Zepp OS
    • Wear OS

Side by side

Differences highlightedShow differences only
101 specifications
A

Amazfit

T-Rex Ultra 2View product
B

Samsung

Galaxy Watch Ultra2View product
Display3 differ
Display resolutionDiffers480 x 480 pixels498 x 498 pixels
Display diagonalDiffers129.5 cm (51")3.81 cm (1.5")
Display brightnessKnown for one3000 cd/m²
Pixel densityDiffers322 ppi329 ppi
Watch glass typeKnown for oneSapphire
BacklightKnown for oneYes
Display technology marketing nameKnown for oneSuper AMOLED
Always-on displayKnown for oneYes
Display number of coloursKnown for one16 million colours
Design5 differ
Market positioningDiffersSport watchSmartwatch
Watch case sizeDiffers51 mm47 mm
Watch case colourDiffersTitaniumGrey
Watch case materialDiffersTitanium, Glass Fiber Reinforced Polymer (GFRP)Titanium
Band colourDiffersBlack, BrownGrey
Band materialKnown for oneSilicone
Band sizeKnown for oneOne Size
Wrist size rangeKnown for one145 - 215 mm
Magnetic charging connectorKnown for oneYes
Waterproof up toKnown for one45 m
Lens materialKnown for oneSapphire
Suggested genderKnown for oneUnisex
Buckle colourKnown for oneGrey
Closure typeKnown for oneDouble prong strap buckle
International Protection (IP) codeKnown for oneIP69K
Performance2 differ
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 one64 GB
Featuresidentical
Blood oxygen sensorKnown for oneYes
Sleep apnea detectionKnown for oneYes
Quality of sleepKnown for oneYes
Built-in speedometerKnown for oneYes
Alarm clockKnown 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
Heart rate sensor typeKnown for oneOptical
Audio formats supportedKnown for one3GA, AAC, AMR, AWB, M4A, MP3, OGA, OGG, WAV
BarometerKnown for oneYes
Military standardKnown for oneMIL-STD-810H
Networkidentical
Mobile network connectionKnown for oneYes
Mobile network generationKnown for one4G
3G standardsKnown for oneWCDMA
4G standardKnown for oneLTE-TDD & LTE-FDD
3G bands supportedKnown for one2100,900,1900,850,1700 MHz
4G bands supportedKnown for one2100,1800,850,2600,900,800,700,1900,2300,600,1700,2500,2000 MHz
SIM card typeKnown for oneeSIM
BeiDouKnown for oneYes
GLONASSKnown for oneYes
GalileoKnown for oneYes
Quasi-Zenith Satellite System (QZSS)Known for oneYes
Ports & interfaces1 differ
Bluetooth versionDiffers5.26.0
Bluetooth Low Energy (BLE)Known for oneYes
Wi-Fi standardsKnown for oneWi-Fi 4 (802.11n), 802.11g, 802.11b, 802.11a
BluetoothKnown for oneYes
Bluetooth profilesKnown for oneA2DP, AVRCP, HFP, HSP
Poweridentical
Battery lifeKnown for one30 day(s)
Battery life (GPS mode)Known for one177 h
Battery life (max)Known for one80 h
Battery1 differ
Battery capacityDiffers870 mAh800 mAh
Softwareidentical
Sports activity appsKnown for oneStrava, RunKeeper, TrainingPeaks
Security update termKnown for one31 July 2031
Other featuresidentical
Number of sports modesKnown for one187
Weight & dimensions4 differ
WidthDiffers51 mm47.1 mm
DepthDiffers51 mm47.4 mm
ThicknessDiffers1.43 cm1.07 cm
WeightDiffers89.2 g61.5 g
Packaging contentidentical
Charging baseKnown for oneYes
ManualKnown for oneYes
Processoridentical
Processor manufacturerKnown for oneQualcomm
Processor frequencyKnown for one2100 MHz
Processor coresKnown for one5

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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