Display
- Amazfit T-Rex 3
- 480 × 480 pixels; 322 ppi
- Huawei Watch 6 42 mm
- 466 × 466 pixels, 310 ppi
Wearable comparison
Amazfit T-Rex 3 vs Huawei Watch 6 42 mm
Compare battery life, health tracking, display and fit.
01Selected  Amazfit T-Rex 3
KSh 33,000In Stock | 02  Huawei Watch 6 42 mm
KSh 34,000Out of Stock |
|---|
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2 of 4 products
Our quick verdict
The Huawei Watch 6 42 mm takes ECG heart-rhythm readings, is lighter to wear all day and has a brighter screen for outdoor use, while the Amazfit T-Rex 3 lasts longer between charges (27 days typical), is swimproof to 100 m and is rated for free diving to 45 m.
Software
- Amazfit T-Rex 3
- Runs Zepp OS 6
- Huawei Watch 6 42 mm
- Runs HarmonyOS
Portability
- Amazfit T-Rex 3
- 68.3 g
- Huawei Watch 6 42 mm
- About 60 g
Water resistance
- Amazfit T-Rex 3
- 10 ATM
- Huawei Watch 6 42 mm
- 5 ATM under ISO 22810:2010
Sensors
- Amazfit T-Rex 3
- BioTracker 6.0 PPG, accelerometer
- Huawei Watch 6 42 mm
- Accelerometer, gyroscope
Key differences
The main differences to help you choose.
Amazfit T-Rex 3
- Longer battery life: up to 27 days in typical use (vs 5).
- Swimproof: water resistant to 100 m (vs 50 m).
- Rated for free diving to 45 m (vs 40 m).
- Syncs with third-party apps such as Strava and Apple Health.
- Water resistant to 10 ATM (vs 5 ATM).
Huawei Watch 6 42 mm
- Brighter display: up to 3,500 nits (vs 2,000).
- Lighter: about 60 g (vs 68.3 g).
- ECG heart-rhythm readings.
- Stainless steel case and plastic back (vs plastic case).
- Speaker.
- Cellular calling via eSIM.
What matters most to you?
6 priorities selected.
| Priority | Amazfit T-Rex 3 | Huawei Watch 6 42 mm |
|---|---|---|
| Battery life | 700 mAh battery | Standard mode: up to 4.5 days typical or 3 days with AOD |
| Portability | 68.3 g | About 60 g |
| Display | 1.5-inch OLED display, 322 ppi | 1.5-inch OLED display, 310 ppi |
| Software | Zepp OS 6 | HarmonyOS |
| Connections | Bluetooth 5.2 | Bluetooth 5.2 |
| Water resistance | 10 ATM | 5 ATM under ISO 22810:2010 |
| Sensors | BioTracker 6.0 PPG, accelerometer | Accelerometer, gyroscope |
| Sleep tracking | Sleep stages including REM, naps | HUAWEI TruSleep, sleep breathing awareness |
| Charging | Magnetic charging head | 10 W wireless fast charging with HUAWEI WATCH Wireless SuperCharger (2nd Generation USB-C) |
| Durability / certifications | EN 13319, ISO 6425 | IP69 under IEC 60529:2013, EN 13319 diving-accessory standard |
| Positioning / GNSS | Dual-band GNSS, 6 satellite positioning systems | GPS L1+L5 dual-band, GLONASS |
| Health & wellness features | 24-hour heart rate, SpO₂ and stress | Heart rate, spO2 |
| Controls / buttons | 4 physical buttons, touchscreen | Home button (rotating crown) and side button |
| Wrist size | 145–210 mm | 140–210 mm |
| Strap / band | 22 mm liquid silicone, pin buckle | HUAWEI EasyCross fluoroelastomer strap, black: black fluoroelastomer |
Tick a topic above to see how each product answers it.
Detailed comparison
Explore the full specifications, section by section.
These products have the same published specifications.
Similarities
- Both use Bluetooth 5.2.
- Both have OLED displays.
- Both have 1.5-inch screens.
- Both connect over Bluetooth.
- Both go up to 210 mm (wrist size).
- Both have a microphone.
In summary
Get the Huawei Watch 6 42 mm if you want ECG heart-rhythm readings and a lighter watch for all-day wear, or the Amazfit T-Rex 3 if you would rather have longer battery life and a swimproof build.
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