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Wearable comparison

Amazfit T-Rex 3 Pro vs Google Pixel Watch 5 45mm

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Amazfit T-Rex 3 Pro

Amazfit T-Rex 3 Pro

  • Runs Zepp OS 6.
  • 1.5-inch OLED display, 322 ppi.
  • 48 mm: 700 mAh.
  • Bluetooth 5.2.
  • 10 ATM.
KSh 55,000In Stock
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02
Google Pixel Watch 5 45mm

Google Pixel Watch 5 45mm

  • Qualcomm Snapdragon W5 Gen 2; Cortex-M55 coprocessor processor.
  • 3 GB RAM in this version.
  • 64 GB storage in this version.
  • Runs Wear OS 7.
  • Wi-Fi 6 support.
KSh 64,000In Stock
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Apple Watch Series 11KSh 51,000
Samsung Galaxy Watch Ultra 2 47mmKSh 62,000
WHOOP Life MGKSh 50,000
WHOOP LifeKSh 55,500
AmazFit FalconKSh 63,000
AmazFit T-Rex UltraKSh 47,000
Amazfit Balance 3KSh 48,000
2 of 4 products

Our quick verdict

The Google Pixel Watch 5 45mm takes ECG heart-rhythm readings, is lighter to wear all day and has a sturdier aluminium build, while the Amazfit T-Rex 3 Pro works with Android phones and iPhones, has a larger 1.5-inch screen and is swimproof to 100 m.

Software

Amazfit T-Rex 3 Pro
Runs Zepp OS 6
Google Pixel Watch 5 45mm
Runs Wear OS 7

Portability

Amazfit T-Rex 3 Pro
52 g
Google Pixel Watch 5 45mm
36.7 g

Connections

Amazfit T-Rex 3 Pro
Bluetooth 5.2
Google Pixel Watch 5 45mm
Wi-Fi 6, Bluetooth 6.0

Display

Amazfit T-Rex 3 Pro
1.5-inch OLED display, 322 ppi
Google Pixel Watch 5 45mm
1.2-inch OLED display, 60 Hz, 320 ppi

Battery capacity

Amazfit T-Rex 3 Pro
48 mm: 700 mAh
Google Pixel Watch 5 45mm
41 mm: 332 mAh

Key differences

The main differences to help you choose.

Amazfit T-Rex 3 Pro

  • Larger 1.5-inch screen (vs 1.2-inch).
  • Works with Android phones and iPhones.
  • Swimproof: water resistant to 100 m (vs 50 m).
  • Rated for free diving to 45 m.
  • Water resistant to 10 ATM (vs 5 ATM).

Google Pixel Watch 5 45mm

  • Lighter: 36.7 g (vs 52 g).
  • ECG heart-rhythm readings.
  • Aluminium case (vs plastic case).
  • Dual-band Wi-Fi (vs 2.4 GHz only).
  • Newer Bluetooth 6.0 (vs 5.2).

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

6 priorities selected.
How each product answers the selected priorities
PriorityAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
Battery life48 mm: 25 days typical, 10 days heavy, 38 hours accurate GPSUp to 30 hours per charge
SoftwareZepp OS 6Wear OS 7
ConnectionsBluetooth 5.2Wi-Fi 6, Bluetooth 6.0
Display1.5-inch OLED display, 322 ppi1.2-inch OLED display, 60 Hz, 320 ppi
Battery capacity48 mm: 700 mAh41 mm: 332 mAh
Water resistance10 ATMIP68 water and dust resistance

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
Display48 mm: 1.5-inch; 44 mm: 1.32-inch AMOLED41 mm: 1.2-inch; 45 mm: 1.4-inch Actua 360 LTPO AMOLED
Screen resolution48 mm: 480 × 480 pixels, 322 ppi; 44 mm: 466 × 466 pixels, 353 ppi41 mm: 408 × 408; 45 mm: 456 × 456 pixels; 320 ppi
Display protectionSapphire glass3D Corning Gorilla Glass 5
Display features—Always-on display; 1–60 Hz; DCI-P3 colour

Connectivity

Connectivity specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
Wi-FiWi-Fi 2.4 GHzWi-Fi 802.11a/b/g/n/ac/ax; 2.4 GHz + 5 GHz
BluetoothBluetooth 5.2 BLEBluetooth 6.0
Positioning / GNSSDual-band GNSS; 6 satellite systems; circularly polarized antennaDual-band L1 + L5; GPS; Galileo; GLONASS; BeiDou; QZSS
Network / cellular—LTE and UMTS on cellular editions
SIM / eSIM—LTE edition: eSIM
NFC—Supported
Ultra Wideband (UWB)—Supported
Satellite features—Satellite SOS on LTE edition; regional availability

Identity & design

Identity & design specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
BrandAmazfitGoogle
ModelAmazfit T-Rex 3 ProGoogle Pixel Watch 5 (41 mm and 45 mm configurations)
Dimensions48 mm: 48 × 48 × 14 mm; 44 mm: 44.8 × 44.8 × 13.2 mm, without heart-rate sensor base41 mm or 45 mm diameter × 12.3 mm height
Weight48 mm: 52 g; 44 mm: 46.8 g, without strap41 mm: 31 g; 45 mm: 36.7 g, without band
Build materialsFibre-reinforced polymer case; Grade 5 titanium bezel and buttonsAluminum case
Wrist size48 mm: 145–210 mm; 44 mm: 140–205 mm41 mm: small 130–175 mm, large 165–210 mm; 45 mm: small 150–185 mm, large 165–215 mm
Strap / band48 mm: 22 mm; 44 mm: 20 mm silicone quick-release strap; pin buckleSecond-generation Active Band; soft-touch HNBR
Controls / buttons4 physical buttons; touchscreenTouchless one-handed gestures Side button Haptic crown Gen 3 premium haptics
Announced—2026, August 12

Performance & software

Performance & software specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
Operating systemZepp OS 6Wear OS 7
Processor—Qualcomm Snapdragon W5 Gen 2; Cortex-M55 coprocessor
CPU—Quad-core (4x1.7 GHz Cortex-A53)
GPU—Adreno A702
RAM—3 GB
Storage—64 GB eMMC

Audio & communication

Audio & communication specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
SpeakerSupportedSupported
MicrophoneSupportedSupported
CallingBluetooth callingYes

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
SensorsBioTracker 6.0 PPG; accelerometer; gyroscope; geomagnetic sensor; barometric altimeter; ambient light; temperatureCompass; altimeter; red and infrared SpO₂ sensors; electrical ECG sensors; multipath optical heart-rate sensor; accelerometer; gyroscope; ambient-light sensor; cEDA skin-conductance sensor; far-field skin-temperature sensor; barometer; magnetometer
Health & wellness features24-hour heart rate, SpO₂ and stress; one-tap measurement; PAI; breathing exercises; high and low heart-rate alerts; low SpO₂ alerts; high-altitude SpO₂ reminders; skin temperature; HybridChargeContinuous heart rate; ECG; SpO₂; skin temperature; stress tracking; cEDA
Sleep trackingSleep stages including REM; naps; sleep breathing quality; sleep scoreSleep stages; sleep score; overnight health metrics
Sports / workout modes187 sports modes—
Training & outdoor featuresZepp Coach; PeakBeats; training templates; interval training; track running; trajectory correction; virtual pacer; offline maps; turn-by-turn navigation; route import; return navigation; route-deviation alerts; altitude assistant; compass; sunrise and sunset; moon phase; tides; storm warnings; contour and ski maps; POI search; route planning; round-trip routing; auto rerouting; HYROX Virtual Pace—
Diving / depth featuresFreediving to 45 m; recreational scuba-diving mode5 ATM
Safety & emergency features—Emergency SOS; fall detection; safety check

Battery & durability

Battery & durability specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
Battery capacity48 mm: 700 mAh; 44 mm: 500 mAh, rated41 mm: 332 mAh; 45 mm: 465 mAh
Battery life48 mm: 25 days typical, 10 days heavy, 38 hours accurate GPS, 74 hours GPS power saver; 44 mm: 17 days typical, 8 days heavy, 26 hours accurate GPS, 51 hours GPS power saver41 mm: 30 hours AOD, 48 hours Battery Saver; 45 mm: 40 hours AOD, 72 hours Battery Saver
ChargingMagnetic charging headUSB-C magnetic pin charging
Water resistance10 ATM5 ATM; IP68
Durability / certificationsRugged outdoor construction with Grade 5 titanium controls and sapphire glassCustom 3D Corning® Gorilla® Glass 5

Compatibility

Compatibility specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
Phone compatibilityAndroid 7 or later; iOS 15 or laterAndroid 12 or later; Google account
Companion appZeppGoogle Pixel Watch; Fitbit
Colors48 mm: Tactical Black, Black Gold; 44 mm: Arctic Gold, Black Gold41 mm: Obsidian, Fog, Olive, Canyon; 45 mm: Obsidian, Fog, Olive

Additional specifications

Additional specifications specifications comparison
SpecificationAmazfit T-Rex 3 ProGoogle Pixel Watch 5 45mm
Case materialFibre-reinforced polymer; Grade 5 titanium bezel100% recycled aluminum
FlashlightRed and white LED flashlight—
Pixels per inch48 mm: 322 ppi; 44 mm: 353 ppi320 ppi
Peak brightness3,000 nits peak3,000 nits peak; 1 nit minimum
Packing listWatch with standard strap; magnetic charging head; instruction manualWatch; small and large bands; charging dock or cable; quick start guide
Smart recognition25 strength-training movements; 8 sports movements—
Third-party fitness appsStrava; adidas Running; TrainingPeaks; komoot; Relive; Google Fit; Apple HealthGoogle Play apps; Google Maps; Google Wallet; Google Assistant
Charging time—41 mm: 15/25/45 minutes to 50/80/100%; 45 mm: 15/30/60 minutes
Release status—Available. Released 2026, August 20
Model numbers—G0F3Y, G1XJ6, G25QD, GFW3R
Card slot—No
Camera—No
3.5 mm headphone jack—No
USB—No
Radio—No
2G bands—GSM 850 / 900 / 1800 / 1900
3G bands—HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands—LTE
Network speed—HSPA, LTE

Similarities

  • Both take calls over Bluetooth.
  • Both have OLED displays.
  • Both connect over Bluetooth.
  • Both have a speaker.
  • Both have a microphone.

In summary

Get the Google Pixel Watch 5 45mm if you want ECG heart-rhythm readings and a lighter watch for all-day wear, or the Amazfit T-Rex 3 Pro if you would rather have a choice of Android phone or iPhone and a larger 1.5-inch screen.

Back to compared products ↑

In-stock alternatives

WHOOP LifeFor Amazfit T-Rex 3 ProWHOOP LifeView product ↗Apple Watch Series 11For Amazfit T-Rex 3 ProApple Watch Series 11View product ↗Apple Watch Series 12 42mmFor Google Pixel Watch 5 45mmApple Watch Series 12 42mmView product ↗Samsung Galaxy Watch Ultra 2 47mmFor Google Pixel Watch 5 45mmSamsung Galaxy Watch Ultra 2 47mmView product ↗

Related comparisons

Amazfit T-Rex 3 ProApple Watch Series 11Amazfit T-Rex 3 ProSamsung Galaxy Watch Ultra 2 47mmAmazfit T-Rex 3 ProWHOOP Life MGAmazfit T-Rex 3 ProWHOOP LifeAmazFit FalconAmazfit T-Rex 3 ProAmazFit T-Rex UltraAmazfit T-Rex 3 ProAmazfit T-Rex 3 ProAmazfit Balance 3Amazfit T-Rex 3 ProAmazfit T-Rex Ultra 2Amazfit T-Rex 3 ProHuawei Watch 6 Pro 46 mm
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