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Product comparison · 2 smartwatches

Amazfit T-Rex Ultra 2 vs Samsung Galaxy Watch9 (Bluetooth

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  • 32specifications compared
  • 14differ
  • 18identical
  • 65known for one product only

Key differences

The Samsung Galaxy Watch9 (Bluetooth has 5 ppi more pixel density than the Amazfit T-Rex Ultra 2 (327 ppi vs 322 ppi). The Amazfit T-Rex Ultra 2 has 7 mm more watch case size than the Samsung Galaxy Watch9 (Bluetooth (51 mm vs 44 mm). The Amazfit T-Rex Ultra 2 has 5 ATM more water resistance than the Samsung Galaxy Watch9 (Bluetooth (10 ATM vs 5 ATM). Display diagonal: 129.5 cm (51") on the Amazfit T-Rex Ultra 2, 3.81 cm (1.5") on the Samsung Galaxy Watch9 (Bluetooth. Market positioning: Sport watch on the Amazfit T-Rex Ultra 2, Smartwatch on the Samsung Galaxy Watch9 (Bluetooth.

  • Display diagonal
    • 129.5 cm (51")
    • 3.81 cm (1.5")
  • Pixel density
    • 322 ppi
    • 327 ppi
  • Market positioning
    • Sport watch
    • Smartwatch
  • Watch case size
    • 51 mm
    • 44 mm
  • Watch case colour
    • Titanium
    • Graphite
  • Band colour
    • Black, Brown
    • Graphite
  • Water resistance
    • 10 ATM
    • 5 ATM
  • Operating system installed
    • Zepp OS
    • Wear OS

Side by side

Differences highlightedShow differences only
97 specifications
A

Amazfit

T-Rex Ultra 2View product
B

Samsung

Galaxy Watch9 (Bluetooth

Model SM-L350NZKDWEU

View product
Display2 differ
Display diagonalDiffers129.5 cm (51")3.81 cm (1.5")
Display brightnessKnown for one3000 cd/m²
Pixel densityDiffers322 ppi327 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
Design6 differ
Market positioningDiffersSport watchSmartwatch
Watch case sizeDiffers51 mm44 mm
Watch case colourDiffersTitaniumGraphite
Watch case materialDiffersTitanium, Glass Fiber Reinforced Polymer (GFRP)Aluminium
Band colourDiffersBlack, BrownGraphite
Band materialKnown for oneSilicone
Band sizeKnown for oneOne Size
Wrist size rangeKnown for one145 - 215 mm
Magnetic charging connectorKnown for oneYes
Water resistanceDiffers10 ATM5 ATM
Waterproof up toKnown for one45 m
Lens materialKnown for oneSapphire
Buckle colourKnown for oneGraphite
Closure typeKnown for oneSingle prong strap buckle
International Protection (IP) codeKnown for oneIP68
Performance1 differ
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 installedDiffersZepp OSWear OS
Sensor typeKnown for oneBIA
RAM capacityKnown for one2000 MB
Flash memoryKnown for one32 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 oneNo
Mobile network generationKnown for oneNot supported
BeiDouKnown for oneYes
GLONASSKnown for oneYes
GalileoKnown for oneYes
Quasi-Zenith Satellite System (QZSS)Known for oneYes
Ports & interfacesidentical
Bluetooth versionKnown for one5.2
Bluetooth Low Energy (BLE)Known for oneYes
Wi-Fi standardsKnown for oneWi-Fi 4 (802.11n), 802.11g, 802.11a, 802.11b
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 one40 h
Wireless chargingKnown for oneYes
Battery1 differ
Battery capacityDiffers870 mAh445 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 mm43.7 mm
DepthDiffers51 mm46 mm
ThicknessDiffers1.43 cm8.6 mm
WeightDiffers89.2 g34 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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