| General | |
|---|---|
| Manufacturer | Amazfit (Zepp Health) |
| Type | Premium solar-powered expedition GPS smartwatch |
| Series | T-Rex |
| Released | 22 September 2026 (pre-order from 22 September 2026) |
| Price at launch | GBP 649.90 / USD 649.99 |
| Predecessor | New solar model in the T-Rex series; closest sibling is the T-Rex Ultra 2 |
| Successor | Not yet announced. See Release Radar. |
| Sizes | 51.4mm (large). 1.32 inch display. |
| Colours | Black (further colours tbc) |
Specifications and features as at launch.
Jump to: Expert opinion | What’s new | Specifications | Battery life | Features | Activity profiles | Further reading
Expert opinion
The T-Rex Dual Solar is the first AMOLED sports watch with solar charging, and adds it with a front and rear charging system. A panel in the display harvests light while the watch is worn, and a larger glass-ceramic panel in the caseback, with more than twice the active area, charges roughly twice as fast when the watch is removed and angled at the sun during breaks. Amazfit positions it as a long-expedition tool for hiking, climbing and multi-day adventures where mains power is limited, pairing the solar system with a 3,000-nit sapphire display, a Grade 5 titanium bezel, six-satellite dual-frequency positioning and the brand’s extensive range of sports and adventure features. At the time of writing, the watch has not been tested on this site for accuracy or feature reliability.
What’s new
Hardware
- Dual-sided solar charging, the first used in an AMOLED smartwatch: a front display panel plus a glass-ceramic caseback panel with more than twice the active charging area
- Included woven lanyard for attaching the watch to a pack so the rear panel keeps harvesting light off the wrist
- Glass-ceramic and titanium-alloy caseback
- Grade 5 titanium bezel and four titanium buttons
- 1.32 inch AMOLED at 3,000 nits under sapphire crystal
- Operating range down to -30°C, military-standard durability, 10 ATM with recreational diving to 50 metres
- White and red multi-mode flashlight
Software
- Outdoor Exploration Mode, optimising GPS power draw for long and multi-day activities
- HybridCharge intelligent solar-charging management
- Map rendering 2.5 times faster and refresh rate up 12-fold, with smoother rotation
- Hybrid Training with Training Balance and Weekly Focus
- Biometric Anomaly Detector for physical strain, and a Battery Assistant that estimates remaining life
- 180-plus sports modes including HYROX training
Specifications
| Display | |
|---|---|
| Size | 1.32 inch |
| Type | AMOLED |
| Resolution | 466 x 466 pixels |
| PPI | 353 |
| Peak brightness | 3,000 nits |
| Lens | Sapphire crystal |
| Touchscreen | Yes |
| Physical | |
| Case size | 51.4mm (large) |
| Thickness | 16.9mm (including heart-rate sensor) |
| Weight | 69g (without strap) |
| Case material | Grade 5 titanium bezel and buttons, glass-ceramic and titanium-alloy caseback |
| Water rating | 10 ATM, recreational diving to 50m |
| Durability | Military-standard certification, operating -30°C to +70°C |
| Strap | Included woven lanyard for pack attachment. Strap width tbc. |
| Sensors and positioning | |
| GPS | Dual-band, six satellite systems, circularly-polarised antenna |
| Heart rate | BioTracker 6.0 PPG |
| Other sensors | Blood-oxygen, barometric altimeter, compass, temperature, gyroscope, accelerometer |
| Connectivity and storage | |
| Connectivity | Wi-Fi, Bluetooth, NFC contactless payments (European version) |
| Storage | 64 GB |
| Music | Onboard MP3 storage and offline podcasts, playback via Bluetooth |
Battery life
Solar charging slows power consumption to extend battery life. It does not replace USB charging, is limited by temperature, and stops once the battery is nearly full. The day figures below assume three hours a day at 50,000 lux, roughly moderately sunny with light cloud. The GPS and trail-running hour figures, and the 180-day and 424-day figures, assume continuous replenishment at 50,000 lux.
| Mode | Base | With front solar | With rear solar |
|---|---|---|---|
| Typical use | Up to 25 days | Up to 34 days | Up to 51 days |
| Heavy use | Up to 13 days | Up to 15 days | Up to 18 days |
| Clock mode | Up to 15 days | Up to 92 days | Up to 424 days |
| Accuracy GPS | Up to 41 hours | Up to 47 hours | — |
| Outdoor Extreme Mode | Up to 40 days | Up to 47 days | Up to 180 days |
| Trail running, Extreme mode | Up to 33 hours | Up to 37 hours | — |
| Trail running, Normal mode | Up to 48 hours | Up to 57 hours | — |
The headline figures are demonstrations of the solar system rather than everyday endurance. The 180-day figure is Outdoor Extreme Mode with continuous rear-panel replenishment; Clock mode reaches up to 424 days on the rear panel but records only steps and basic sleep with heart rate, Bluetooth and other functions off.
Features
The T-Rex Dual Solar runs on the Zepp ecosystem. Its feature set spans planning, preparation, performance and everyday connectivity.
Plan
- Preloaded full-colour maps, with downloadable contour-line and ski map layers
- Intelligent route planning with waypoints
- Offline route planning on the watch and in the app
- Rerouting by original route or straight-line return
- Colour-coded elevation profile and points-of-interest search
- Hybrid Training plans via Zepp Coach and third-party platforms
- Training Balance and Weekly Focus planning tools
Prepare
- Hybrid Training with structured plans and recovery guidance
- Fatigue, fitness and recovery analysis in the Zepp app
- Lactate threshold and equivalent pace
- Biometric Anomaly Detector for physical strain
- Battery Assistant estimating remaining battery life
Perform
- 180-plus sports modes, including hiking, mountaineering, recreational diving, golf and HYROX training
- Recreational diving to 50 metres
- Advanced strength training
- GRun arrival-time estimation
- Blood-oxygen monitoring for high-altitude use
- Flashlight with white and red modes, 200-lux beam, 300-lux Boost and an SOS mode
- Live activity sharing
- Environment tools: compass, weather-change and fast-ascent alerts
Connect
- Bluetooth calls
- Zepp Flow voice control
- NFC contactless payments (supported regions)
- Offline podcast storage and MP3 music
- Sync with partner training platforms
- Smart notifications
Activity profiles
The T-Rex Dual Solar supports more than 180 sports modes. The confirmed headline modes are hiking, mountaineering, recreational diving, golf and HYROX. Full mode list tbc.
