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Product comparison · 2 smartwatches

Amazfit T-Rex 3 Pro vs Amazfit T-Rex Ultra 2

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  • 25specifications compared
  • 9differ
  • 16identical
  • 48known for one product only

Key differences

The Amazfit T-Rex Ultra 2 has 3 mm more watch case size than the Amazfit T-Rex 3 Pro (51 mm vs 48 mm). The Amazfit T-Rex Ultra 2 has 170 mAh more battery capacity than the Amazfit T-Rex 3 Pro (870 mAh vs 700 mAh). The Amazfit T-Rex Ultra 2 has 37.2 g more weight than the Amazfit T-Rex 3 Pro (89.2 g vs 52 g). Display diagonal: 3.81 cm (1.5") on the Amazfit T-Rex 3 Pro, 129.5 cm (51") on the Amazfit T-Rex Ultra 2. Market positioning: Smartwatch on the Amazfit T-Rex 3 Pro, Sport watch on the Amazfit T-Rex Ultra 2.

  • Display diagonal
    • 3.81 cm (1.5")
    • 129.5 cm (51")
  • Market positioning
    • Smartwatch
    • Sport watch
  • Watch case size
    • 48 mm
    • 51 mm
  • Watch case colour
    • Black
    • Titanium
  • Band colour
    • Black
    • Black, Brown
  • Battery life
    • 27 day(s)
    • 30 day(s)
  • Battery capacity
    • 700 mAh
    • 870 mAh
  • Weight
    • 52 g
    • 89.2 g

Side by side

Differences highlightedShow differences only
73 specifications
A

Amazfit

T-Rex 3 ProView product
B

Amazfit

T-Rex Ultra 2View product
Display1 differ
Display typeDigitalDigital
Display resolution480 x 480 pixels480 x 480 pixels
TouchscreenYesYes
Display diagonalDiffers3.81 cm (1.5")129.5 cm (51")
Display technologyAMOLEDAMOLED
Display brightness3000 cd/m²3000 cd/m²
Pixel density322 ppi322 ppi
Watch glass typeKnown for oneSapphire
BacklightKnown for oneYes
Design5 differ
Market positioningDiffersSmartwatchSport watch
Watch case sizeDiffers48 mm51 mm
Watch case colourDiffersBlackTitanium
Watch case materialDiffersPolymer, TitaniumTitanium, Glass Fiber Reinforced Polymer (GFRP)
Band colourDiffersBlackBlack, Brown
Band materialSiliconeSilicone
Band sizeKnown for oneOne Size
ShapeRoundRound
Wrist size rangeKnown for one145 - 215 mm
Magnetic charging connectorKnown for oneYes
Water resistance10 ATM10 ATM
Waterproof up to45 m45 m
Lens materialKnown for oneSapphire
Protection featuresKnown for oneWater resistant
Performanceidentical
Built-in microphoneYesYes
Built-in speaker(s)YesYes
Built-in cameraKnown for oneNo
Mobile operating systems supportedKnown for oneAndroid 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 26
Operating system installedKnown for oneZepp OS
Featuresidentical
Heart rate monitorKnown for oneYes
Blood oxygen sensorKnown for oneYes
Sleep apnea detectionKnown for oneYes
AccelerometerKnown for oneYes
GyroscopeKnown for oneYes
Quality of sleepYesYes
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
Geomagnetic sensorKnown 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
Skin temperature sensorKnown 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
SOS alert functionKnown for oneYes
Networkidentical
GPS (satellite)YesYes
Ports & interfacesidentical
Wi-FiYesYes
Bluetooth versionKnown for one5.2
Bluetooth Low Energy (BLE)Known for oneYes
Near Field Communication (NFC)Known for oneYes
BluetoothKnown for oneYes
Power1 differ
Battery typeBuilt-in batteryBuilt-in battery
Battery lifeDiffers27 day(s)30 day(s)
Battery life (GPS mode)Known for one177 h
Battery1 differ
Battery capacityDiffers700 mAh870 mAh
Softwareidentical
Sports activity appsKnown for oneStrava, RunKeeper, TrainingPeaks
Other featuresidentical
Number of sports modesKnown for one187
Weight & dimensions1 differ
WidthKnown for one51 mm
DepthKnown for one51 mm
ThicknessKnown for one1.43 cm
WeightDiffers52 g89.2 g
Dimensions (WxDxH)Known for one48 x 48 x 14 mm
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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