
Amazfit has announced the Amazfit T-Rex Dual Solar, an expedition-focused smartwatch designed for endurance athletes and multi-day outdoor exploration.
Unveiled to coincide with the autumnal equinox, the device is marketed as the industry’s first AMOLED smartwatch equipped with a dual-sided solar charging system, capturing energy through both the front display panel and a glass-ceramic rear plate.
Dual-Sided Solar Harvesting Architecture
The core technical differentiator of the T-Rex Dual Solar lies in its split solar energy recovery system, tailored for distinct operational scenarios:
- Front Solar Panel: Designed for on-wrist collection while active outdoors. Under Amazfit’s standard testing parameters (three hours of daily direct exposure at 50,000 lux), front harvesting can extend the watch’s baseline 25-day typical runtime up to 34 days.
- Rear Solar Panel: Embedded directly into the watch’s glass-ceramic back plate. This off-wrist panel features twice the surface area of the front collector, enabling significantly higher energy absorption when placed flat under direct sunlight.
- Solar Priority Mode: An ultra-low-power standby setting engineered to optimize off-wrist solar energy absorption, allowing users to revive a fully depleted watch back to functional levels for emergency maps and route tracking.

Battery Architecture and Outdoor Modes
Powered by a 660 mAh battery, the T-Rex Dual Solar delivers up to 25 days of typical usage without solar supplementation and up to 41 hours of continuous operation in high-accuracy GPS tracking mode.
To manage power across extended wilderness trips, Amazfit introduced an Outdoor Extreme battery profile, which curtails background consumption while preserving critical tracking data such as periodic GPS waypoints. This protocol pairs with a dedicated Expedition activity mode, targeting multi-day backcountry journeys where wall power is unavailable.

Hardware and Display Specifications
Constructed to endure rugged environments, the smartwatch incorporates industrial-grade protective materials and outdoor-focused hardware:
| Component / Feature | Specification |
|---|---|
| Bezel Material | Grade 5 Titanium |
| Lens | Scratch-resistant Sapphire Crystal |
| Case Back | Glass-ceramic with embedded solar panel |
| Display | 1.32-inch AMOLED, up to 3,000 nits peak brightness |
| Water Resistance | 10 ATM rating; certified for recreational diving up to 50 meters |
| Integrated Lighting | Built-in LED flashlight with dedicated white and red-light modes |
| Battery Capacity | 660 mAh (up to 41 hours in Accuracy GPS Mode) |
Navigation and Software Suite
The T-Rex Dual Solar provides an offline-capable navigation stack directly on the wrist. Software and mapping capabilities include:
- Mapping Support: Preloaded full-color road maps, accompanied by downloadable topographic contour maps and ski resort overlays.
- Routing Tools: Turn-by-turn guidance, route planning, advanced waypoint navigation, and Points of Interest (POI) display.
- Navigation Gradient Curve: A real-time, color-coded elevation visualizer illustrating upcoming climbs, descents, and grade changes.
- LiveShare: Real-time data broadcasting that transmits live coordinates, compass heading, and current performance metrics to designated contacts or support teams.
- Zepp Platform: Health, sleep, training load, and recovery metrics sync natively via the Zepp App, providing long-term analytics without requiring an ongoing subscription.
Pricing and Availability
The Amazfit T-Rex Dual Solar is priced at $649.99 and is available directly through Amazfit’s official online store and authorized retailers, including Amazon.

