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The Amazfit T-Rex 3 Pro is a rugged GPS sports watch built for trail running, hiking and multi-day endurance events. It pairs dual-band GPS across six satellite systems with a circularly polarized antenna, so tracking holds up under tree cover and between canyon walls. Battery life is the headline: up to 25 days in typical use and 38 hours in full GPS mode, enough for a 100-mile race. It undercuts premium multisport watches on features per dollar, though it lacks the deep training analytics and app ecosystem of the top-tier brands.
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The Amazfit T-Rex 3 Pro is a GPS sports watch built for outdoor and endurance training. It has a Grade 5 titanium bezel and buttons and a sapphire crystal display rated to 3,000 nits, so the screen stays readable in direct sun. It is MIL-STD-810H certified for shock, temperature extremes and humidity, and it has a low-temperature mode for use down to -30°C.
Dual-band positioning across six satellite systems and a circularly-polarized GPS antenna handle tracking under forest canopy, between canyon walls and in cities. The BioTracker 6.0 sensor measures heart rate. BioCharge monitoring tracks how workouts and stress affect readiness. Zepp Coach creates AI-generated training plans from 5K to marathon, with metrics including VO₂ Max, Training Load and Training Effect.
For training, the watch has pre-loaded offline maps with turn-by-turn navigation and route planning with auto-rerouting. It offers 180+ sport modes, with smart recognition for 25 strength movements. It connects by Bluetooth to power meters, heart rate monitors and cycling sensors. For daily use, it takes calls from the wrist, controls music, supports voice control through Zepp Flow, and gives storm alerts and high-altitude warnings.
