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Wearable comparison

AmazFit T-Rex Ultra vs Huawei Watch 6 Pro 46 mm

Compare battery life, health tracking, display and fit.

Compared products
01Selected
AmazFit T-Rex Ultra

AmazFit T-Rex Ultra

  • Screen: 454 × 454 pixels, 326 ppi.
  • Runs Zepp OS 3.5.
  • 500 mAh battery capacity.
  • 2.3 GB storage.
  • Bluetooth 5.0.
KSh 47,000Out of Stock
02
Huawei Watch 6 Pro 46 mm

Huawei Watch 6 Pro 46 mm

  • About 50 g.
  • Screen: 466 × 466 pixels, 338 ppi.
  • Runs HarmonyOS.
  • Bluetooth 5.2 connection.
  • 5 ATM under ISO 22810:2010.
KSh 50,000Out of Stock

Add to comparison

2 spaces available

WHOOP Peak 5.0 SensorKSh 38,000
Amazfit T-Rex 3 ProKSh 55,000
Amazfit Balance 2KSh 39,000
Amazfit Balance 3KSh 48,000
Google Pixel Watch 4KSh 44,500
Samsung Galaxy Watch Ultra 2025KSh 44,000
Samsung Galaxy Watch UltraKSh 45,000
2 of 4 products

Our quick verdict

The Huawei Watch 6 Pro 46 mm takes ECG heart-rhythm readings, gives daily readiness scores and is lighter to wear all day, while the AmazFit T-Rex Ultra lasts longer between charges (20 days typical), is swimproof to 100 m and offers 10 ATM water resistance.

Display

AmazFit T-Rex Ultra
454 × 454 pixels, 326 ppi
Huawei Watch 6 Pro 46 mm
466 × 466 pixels, 338 ppi

Software

AmazFit T-Rex Ultra
Runs Zepp OS 3.5
Huawei Watch 6 Pro 46 mm
Runs HarmonyOS

Portability

AmazFit T-Rex Ultra
89 g
Huawei Watch 6 Pro 46 mm
About 50 g

Connections

AmazFit T-Rex Ultra
Bluetooth 5.0
Huawei Watch 6 Pro 46 mm
Bluetooth 5.2

Water resistance

AmazFit T-Rex Ultra
10 ATM
Huawei Watch 6 Pro 46 mm
5 ATM under ISO 22810:2010

Key differences

The main differences to help you choose.

AmazFit T-Rex Ultra

  • Longer battery life: up to 20 days in typical use (vs 3).
  • Swimproof: water resistant to 100 m (vs 50 m).
  • Water resistant to 10 ATM (vs 5 ATM).

Huawei Watch 6 Pro 46 mm

  • Brighter display: up to 3,500 nits (vs 1,000).
  • Lighter: about 50 g (vs 89 g).
  • ECG heart-rhythm readings.
  • Ceramic case (vs stainless steel case).
  • Daily readiness scores.
  • Rated for free diving to 40 m.

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.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PriorityAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
Battery life500 mAh batteryStandard mode: up to 3 days typical or 2 days with AOD
Portability89 gAbout 50 g
Display1.39-inch OLED display, 326 ppi1.38-inch OLED display, 338 ppi
SoftwareZepp OS 3.5HarmonyOS
ConnectionsBluetooth 5.0Bluetooth 5.2
Water resistance10 ATM5 ATM under ISO 22810:2010

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
Display1.39-inch AMOLED1.38-inch LTPO 2.0 AMOLED
Screen resolution454 × 454 pixels, 326 ppi466 × 466 pixels, 338 ppi
Display protectionGlassSapphire crystal
Display featuresUp to 1,000 nits; Always-On Display; 120+ watch facesUp to 3,500 nits peak brightness

Connectivity

Connectivity specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
Wi-Fi2.4 GHz Wi-Fi2.4 GHz and 5 GHz WLAN
BluetoothBluetooth 5.0 BLEBluetooth 5.2
Positioning / GNSSBuilt-in dual-band L1/L5 positioning; six satellite systemsGPS L1+L5 dual-band; GLONASS; BeiDou B1I+B1C+B2a tri-band; Galileo E1+E5a dual-band; QZSS L1+L5 dual-band
Network / cellular—GSM / HSPA / LTE (cellular model only)
SIM / eSIM—eSIM (cellular model only)
NFC—Supported

Identity & design

Identity & design specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
BrandAmazfitHuawei
ModelAmazfit T-Rex UltraHUAWEI WATCH 6 Pro 43mm
Dimensions47.3 × 47.3 × 13.45 mm, excluding heart-rate sensor base43.5 × 43.5 × 10.2 mm
Weight89 g without strapApproximately 50 g (strap excluded)
Build materials316L stainless-steel bezel, back panel, bridge and buttons; polymer-alloy middle frameFront case: ceramic; rear case: ceramic
Wrist size140–205 mmWhite: 120–180 mm; Ceramic Edition: 130–190 mm
Strap / band22 mm silicone strap with classic pin buckleWhite: Pure White Composite Strap; Ceramic Edition: White Ceramic Strap
Controls / buttonsFour physical buttons; glass touchscreenHome button (rotating crown) and side button
Announced—2 September 2026

Performance & software

Performance & software specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
StorageUp to 2.3 GB available for music—
Operating systemZepp OS 3.5HarmonyOS

Audio & communication

Audio & communication specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
SpeakerNo built-in speaker; audio through connected Bluetooth headphonesSupported
Microphone—Supported
Calling—Cellular calling via eSIM; Bluetooth calling when paired

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
SensorsBioTracker PPG biometric sensor with SpO₂; accelerometer; gyroscope; geomagnetic sensor; barometric altimeter; ambient-light sensorAccelerometer; gyroscope; compass; optical heart-rate sensor; barometer; ambient-light sensor; body-temperature sensor; ECG sensor; depth sensor; X-TAP sensor
Health & wellness features24-hour heart-rate, blood-oxygen and stress monitoring; one-tap measurement; PAI; breathing exercises; health alertsHealth Glance with up to 14 metrics; heart rate; SpO2; body temperature; HRV; arterial stiffness detection; ECG; stress and readiness insights
Sleep trackingSleep stages including REM; naps; sleep schedule; breathing quality; sleep scoreHUAWEI TruSleep; sleep insights; sleep breathing awareness
Sports / workout modes162 sports modes; smart recognition of 25 strength movements and 8 sports movements; freediving workoutsGolf; snow sports; diving; cycling; additional workout modes
Training & outdoor featuresOffline maps and route navigation; Zepp Coach; PeakBeats; Track Run; trajectory correction; Virtual Pacer; training templates and intervals; external heart-rate belt and cycling power meter; altitude, sun, moon and tide toolsAI-powered workout analysis; Expedition mode
Safety & emergency featuresStorm warnings; altitude blood-oxygen reminders; abnormal heart-rate, low-SpO₂ and high-stress alertsSafety Check via eSIM (availability varies by market)
Diving / depth featuresOutdoor and indoor freediving and spearfishing; depth and water-temperature data; rated to 30 m; EN13319 and ISO 6425 diving certificationsFreediving to 40 m; EN 13319 diving-accessory support

Battery & durability

Battery & durability specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
Battery capacity500 mAh rated—
Battery lifeTypical: up to 20 days; saver: 25 days; clock: 50 days; heavy: 9 days; accuracy GPS: 28 h; automatic GPS: 46 h; power-saving GPS: 58 h; endurance GPS: 80 h; low-temperature GPS: 10 hStandard mode: up to 3 days typical or 2 days with AOD; Battery saver: up to 7 days maximum, 5 days typical, or 3 days with AOD
ChargingMagnetic charging base; approximately 2 hours10 W wireless fast charging with HUAWEI WATCH Wireless SuperCharger (2nd Generation USB-C); 15-minute charge provides up to one day of use; charger requirement 5–10 V DC, 2 A maximum
Water resistance10 ATM; ISO 22810:20105 ATM under ISO 22810:2010
Durability / certificationsMud-resistant design; ultra-low-temperature mode down to −30 °C; SGS-certified 10 ATM testing; EN13319 and ISO 6425 diving certificationsIP69 under IEC 60529:2013; EN 13319 diving-accessory standard

Compatibility

Compatibility specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
Phone compatibilityAndroid 7.0 or later; iOS 12.0 or laterAndroid 9.0 or later; iOS 13.0 or later
Companion appZepp AppHUAWEI Health
ColorsAbyss Black; SaharaWhite; Ceramic Edition

Additional specifications

Additional specifications specifications comparison
SpecificationAmazFit T-Rex UltraHuawei Watch 6 Pro 46 mm
NearLink—Supported

Similarities

  • Both have OLED displays.
  • Both have similar screen sizes (1.39 and 1.38 inches).
  • Both connect over Bluetooth.

In summary

Get the Huawei Watch 6 Pro 46 mm if you want ECG heart-rhythm readings and daily readiness scores, or the AmazFit T-Rex Ultra if you would rather have longer battery life and a swimproof build.

Back to compared products ↑

In-stock alternatives

Apple Watch Series 10For AmazFit T-Rex UltraApple Watch Series 10View product ↗Amazfit Balance 3For AmazFit T-Rex UltraAmazfit Balance 3View product ↗Samsung Galaxy Watch UltraFor Huawei Watch 6 Pro 46 mmSamsung Galaxy Watch UltraView product ↗Amazfit T-Rex 3 ProFor Huawei Watch 6 Pro 46 mmAmazfit T-Rex 3 ProView product ↗

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