Amazfit T-Rex 3
Amazfit T-Rex 3 Rugged GPS Smartwatch ｜ AI Vitamin
- Zepp Health Corporation
- Gorinchem, Netherlands
AI summary
Amazfit T-Rex 3 combines a rugged 10 ATM build, a bright 1.5-inch AMOLED display, dual-band GPS with offline maps, 177 sports modes and Zepp AI voice and training tools with up to 27 days of typical battery life.
Pricing
Hardware options
| Option | Price |
|---|---|
| Amazfit T-Rex 3 (US) | $279.99 |
Specifications
Key hardware details first, followed by the complete product specification.
Key specifications
- Display
- 1.5-inch AMOLED; 480 × 480 resolution; 322 ppi; Gorilla Glass touch screen
- Battery life
- Up to 27 days of typical use; 13 days of heavy use
- GPS
- Dual-band positioning with six satellite systems
- Sports modes
- 177 modes in the current specifications
Design & carry
- Dimensions
- 48.5 × 48.5 × 13.75 mm
- Weight
- 68.3 g without the strap
- Materials
- Stainless-steel bezel and polymer middle frame
- Officially listed colours
- Onyx, Lava and Haze Grey options
- Controls
- Four physical buttons plus touch screen
- Strap
- 22 mm liquid-silicone strap; listed wrist range 145–210 mm
- Ingress protection
- 10 ATM water resistance; not a 100 m diving-depth specification
Outdoor & safety
- Freediving
- Manufacturer lists a 45 m freediving rating and EN13319, ISO6425 and GB/T18828-related dive certification
- Temperature operation
- Manufacturer advertises use from -30°C to 70°C; low-temperature mode has feature and endurance limitations
- Environment tools
- Compass, altitude tools, sunrise/sunset, moon phases, tides and storm alerts
Display
- Peak brightness
- Up to 2000 nits in supported conditions; not available in low-temperature mode or below 30% battery
Power & charging
- Battery capacity
- 700 mAh rated capacity
- Charging method
- Magnetic charging base; USB-C cable not included
- Charging time
- Approximately 3 hours
- Battery saver and clock modes
- Up to 40 days in battery-saver mode and 81 days in clock mode
- GPS endurance
- Up to 42 hours in accuracy mode, 72 hours in power-saving GPS mode and 180 hours in GPS Max mode
- Low-temperature endurance
- Up to 28 hours with GPS on or 32 days with GPS off in the listed low-temperature mode
Connection & companion
- Connectivity
- 2.4 GHz Wi-Fi and Bluetooth 5.2/BLE
- Compatible platforms
- Android 7.0 or later; iOS 14.0 or later; Zepp companion app
- Account requirement
- Zepp account for pairing and connected app services
- Fitness integrations
- Strava, adidas Running, TrainingPeaks via Terra, komoot, Relive, Google Fit and Apple Health
- Workout peripherals
- Supported BLE heart-rate monitors, cycling speed/cadence/power sensors, running power meters and core-body temperature monitor
Software & AI
- Operating system
- Zepp OS 4.5 in the current official product features
- AI voice control
- Zepp Flow conversational control using GPT-4o; availability depends on supported country, language and network services
- Training coach
- Zepp Coach running plans and adaptive training guidance
- Optional wellness service
- The official T-Rex 3 guide includes Zepp Aura AI dialogue, stories and music; a current public numeric subscription price was not confirmed
- Apps and watch faces
- Zepp OS mini apps and more than 400 watch-face options advertised
Capabilities & dependencies
- Core task internet requirement
- Downloaded maps and local watch tracking can be used without live map data; connected AI, downloads and synchronization require supporting phone/network services
- Phone dependency
- Zepp app used for setup, map transfer and synchronization; turn-by-turn audio can use supported Bluetooth headphones
Privacy & data
- Sensors and data capture
- BioTracker 6.0 PPG, accelerometer, gyroscope, geomagnetic sensor, barometric altimeter, ambient-light and temperature sensors
- Privacy controls
- Location privacy controls include GPS disablement and choices about location backup; app privacy-policy settings apply
Health & recovery
- Continuous monitoring
- Heart rate, blood-oxygen saturation and stress monitoring
- Sleep monitoring
- Sleep stages including REM, naps, breathing quality and sleep score
- Readiness and assessment
- Readiness, PAI, PeakBeats workout status and recovery metrics
- Scope of measurements
- Fitness and wellness information; not a medical diagnostic device
Training & activity
- Workout recognition
- Eight sport movements and 25 strength-training movements in the published specifications
- Strength and running tools
- Training templates, interval sessions, repetitions/rest, virtual pacer, track-run correction and running metrics
Positioning & navigation
- Offline maps
- Downloaded maps, route import, turn-by-turn navigation, off-route reminders, saved points and return navigation
Lifestyle
- Calls and notifications
- Phone-call notifications supported; Bluetooth phone conversations are not supported
- Music
- On-watch music storage and phone music controls; no native Spotify or Pandora installation
- Other tools
- Voice memos, alarms, stopwatch, Pomodoro timer, reminders, weather and phone finding
Support & ownership
- Security-update status
- Official page lists over-the-air updates via Wi-Fi
- Warranty
- 1-year warranty under the official US policy
What is included
- In the box
- Watch with strap, magnetic charging base, instruction manual and strap-changing kit; no USB-C cable
Company
- Company headquarters
- Current corporate Investor FAQs explicitly identify Gorinchem, the Netherlands
FAQ
Does the T-Rex 3 smartwatch work with Apple iPhone and Android mobile phones or devices?
The official compatibility table lists Android 7.0 or later and iOS 14.0 or later, paired through the Zepp app.
Can I make or receive calls with the T-Rex 3 smartwatches?
Bluetooth voice calls are not supported; the watch can show notifications for incoming phone calls.
Does the T-Rex 3 support third-party music apps like Spotify and Pandora?
Spotify and Pandora cannot be installed as native watch apps; the watch can control music playing on the paired phone.
Does the Zepp App sync with sports and fitness apps?
Zepp lists synchronization with Strava, adidas Running, TrainingPeaks via Terra, komoot, Relive, Google Fit and Apple Health; the FAQ excludes Samsung Health and MyFitnessPal.
How long does the T-Rex 3 smartwatch battery last?
Amazfit estimates up to 27 days in typical use and 40 days in battery-saver mode; use patterns affect actual endurance.
How long does it take the T-Rex 3 smartwatch to charge?
The manufacturer lists approximately 3 hours for a full charge with the magnetic charging base.
Can I use the Amazfit T-Rex 3 for diving?
The manufacturer specifies a 45 m freediving rating and relevant dive certification; follow the model manual and approved activity modes rather than treating the 10 ATM pressure rating as a 100 m diving limit.
Does the Amazfit T-Rex 3 support running sports mode? What do the running metrics on this watch actually tell me?
Running modes include outdoor, trail and treadmill running; supported analysis includes VO₂ max, heart-rate zones, training load and recovery information.
Is the T-Rex 3 smartwatch waterproof? If so, how deep can it go?
The watch carries a 10 ATM water-resistance rating, a static-pressure test rating; its separately stated freediving limit is 45 m.
Why doesn't the T-Rex 3 smartwatch package include a USB-C cable?
The package includes a magnetic charging base but no USB-C cable; Amazfit attributes this packaging choice to reducing unnecessary accessories and waste.
My Amazfit smartwatch's Bluetooth keeps disconnecting from my mobile device, how do I fix this?
Amazfit suggests updating the Zepp app and phone software, restarting the watch and reconnecting Bluetooth; contact support if this does not resolve the issue.
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