Amazfit T-Rex 3
Rugged 48mm outdoor smartwatch with 1.5" AMOLED (2000 nits), offline maps, 27-day battery, and Zepp Flow AI voice control (no speaker).
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Key specifications
Android 7.0 or later; iOS 14.0 or later (Zepp App required)
Zepp OS 4
48.5mm x 48.5mm x 13.75mm
Polymer middle frame; Stainless steel bezel (316L)
AMOLED; Gorilla Glass; Peak brightness 2000 nits
1.5 in (38.1 mm) diameter
480 x 480 pixels (322 ppi)
Yes
10 ATM (100 meters); Freediving certified (EN13319) to 45m
MIL-STD-810H (70°C heat / -30°C cold / Shock / Humidity); Mud-resistant bridge and buttons
Dual-band GNSS (L1+L5); 6 Satellite Positioning Systems (GPS, GLONASS, Galileo, BeiDou, QZSS, NAVIC)
Wi-Fi (2.4GHz); Bluetooth 5.2; BLE
Zepp Pay (Europe/parts of Asia only); Not supported on US models
BioTracker™ 6.0 PPG biometric sensor (SpO2, Heart Rate); Accelerometer; Gyroscope; Geomagnetic sensor; Barometric altimeter; Ambient light sensor; Temperature sensor (skin/water)
Readiness Score; HRV (Heart Rate Variability); Sleep Breathing Quality; One-tap measuring (HR, SpO2, Stress, Breathing rate); Sleep stages (REM/Deep/Light); PAI Health Assessment
Hyrox Race mode; Ultramarathon; Freediving; Strength Training (auto-detection of 25 movements); Triathlon; Skiing; Snowboarding; Surf; and 170+ others
32GB (Approx. 26GB user-accessible for Music/Maps)
Microphone (for Zepp Flow voice commands); No Speaker (Buzzer/Beeper only for alerts)
No (Cannot answer calls on wrist; can reject/ignore calls)
700 mAh; Up to 27 days (Typical usage); Up to 13 days (Heavy usage); Up to 42 hours (Accuracy GPS mode); Up to 114 hours (GPS Long Battery Life)
Magnetic charging base (2-pin); Approx. 3 hours to full charge
68.3 g (without strap)
22mm width; Fits 145–210mm wrists (Proprietary screws but includes adapters for standard bands in some regions)
Offline Maps (Contour/Terrain); Turn-by-turn navigation; Zepp Flow (AI voice assistant); Night Display mode; Glove mode
✓ Pros
- Incredible 27-day battery life crushes the competition
- Large, bright 1.5" AMOLED (2000 nits) is easy to read outdoors
- Free offline contour maps with turn-by-turn navigation
- Freediving certified to 45m (rare at this price point)
- Generous 32GB storage for offline music and global maps
✗ Cons
- No built-in speaker (alerts are beeps/vibrations only)
- NFC payments (Zepp Pay) are not supported on US hardware
- Large 48.5mm case is bulky for smaller wrists
- Proprietary strap system requires adapters to use standard bands
Compare with similar options
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Frequently Asked Questions
+ Is the Amazfit T-Rex 3 worth buying in 2026?
Yes, the Amazfit T-Rex 3 is worth it if you prioritize incredible 27-day battery life crushes the competition. With a 4.5/5 rating, it stands out in the smartwatches category. However, consider that no built-in speaker (alerts are beeps/vibrations only). Check our detailed verdict above.
+ What are the main specs of Amazfit T-Rex 3?
Key specifications include: Compatibility: Android 7.0 or later; iOS 14.0 or later (Zepp App required), Operating System: Zepp OS 4, Case Size: 48.5mm x 48.5mm x 13.75mm, Case Material: Polymer middle frame; Stainless steel bezel (316L). See the full specifications table above for complete technical details.
+ Where is the best place to buy Amazfit T-Rex 3?
For US buyers, Amazon offers the best combination of competitive pricing, fast Prime shipping, easy returns, and reliable warranty support. Use our affiliate links above to check current prices and availability.
+ What are the pros and cons of Amazfit T-Rex 3?
Pros: Incredible 27-day battery life crushes the competition; Large, bright 1.5" AMOLED (2000 nits) is easy to read outdoors; Free offline contour maps with turn-by-turn navigation. Cons: No built-in speaker (alerts are beeps/vibrations only); NFC payments (Zepp Pay) are not supported on US hardware. See our detailed breakdown above for the complete analysis.
+ How does Amazfit T-Rex 3 compare to alternatives?
We have 25+ detailed comparisons with similar smartwatches. Popular matchups include Apple Watch Ultra 2 and Apple Watch Series 10. Check the comparison section above.
+ Are PageBen reviews independent and unbiased?
Yes. PageBen is an independent review site. While we use affiliate links for monetization, our recommendations are research-driven and based on objective specifications, user feedback, and real-world performance. We are not sponsored by manufacturers.
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