The world is uncertain. Amazfit built the T-Rex Ultra 2 for it. When you don’t know what comes next, this watch does. When you don’t know whether the next moment will be under harsh sunlight, in the dark of night, underwater, in the mountains, or back in the city - you don’t need to change your watch. Rugged by Design The T-Rex Ultra 2 is engineered for environments where gear can’t fail. Its 51mm Grade 5 titanium body and sapphire glass screen withstand brutal cold, scorching heat, rock, ice, and rapid shifts in weather, with military-grade resistance¹ to unpredictable impact, wear, and environments. Built for unpredictable lighting, the vibrant 1.5" AMOLED display keeps your data crystal clear under even intense sunlight. Full-Color Preloaded Maps Six satellite systems² and dual-band support provide fast and reliable positioning. Built for days that shift between mountains and cities, the T-Rex Ultra 2 prepares you for new terrain with full-color base maps preloaded on your watch³. For greater planning flexibility, contour maps can be downloaded from the Zepp App, created routes can be previewed before activities, and up to 100 routes can be stored directly on the watch. Route Planning On-Watch Create point-to-point routes directly from your wrist⁴, using preloaded maps to choose smarter traverses and more efficient climbs. Adjust as conditions change without needing to take your phone out or reconnect to a network. Save up to 100 routes directly on the watch and preview routes before you begin. Points of Interest Search Need water, shelter, or a way back to the trailhead? Use POI search to locate important points of interest around you, then follow on-watch navigation to get there with confidence. Automatic Rerouting If you stray from your planned route, automatic rerouting plans a new one for you based on your real-time location and destination. Checkpoint Display & Alerts Mark critical locations—like shelter, water sources, altitude milestones, or turnaround points—and see them clearly on your route with dedicated checkpoint displays. Set smart reminders for key checkpoints along your route and get vibration and speaker alerts⁵ as you go. Environmental Tools Use the barometer and storm alerts to monitor sudden weather changes and get early warnings when conditions shift. High-altitude prompts remind you to check your blood-oxygen levels during steep climbs⁶ so you can stay aware of how your body is responding. When the Trail Goes Dark, Stay Ready Built for unpredictable nights and emergencies, the two-color flashlight ensures you stay visible, even in low light and late hours. Choose green for low interference with a larger and more detailed field of view, bright white for clarity, or switch to Boost Mode for powerful visibility when it's needed. An SOS signal adds extra peace of mind wherever you roam. Up to 30 Days of Battery Life Built for journeys with no fixed end, the watch delivers up to 30 days of battery life⁷, so you can cross ranges, link routes, and take on multi-week pushes without constantly planning your next charge. Pro-Grade Waterproofing With 10 ATM water-resistance⁸ and support for dives up to 45m below the surface, T-Rex Ultra 2 helps simplify underwater exploration with automatic dive detection that recognizes supported dives and starts tracking when you enter the water. Track time, depth, and performance throughout your dive without switching devices. Endure Any Environment Engineered with hardware that remains operational in extreme cold, the watch uses Low Temperature Mode¹⁰ to keep essential functions responsive even when temperatures drop to –30°C. Even in harsh conditions, core features continue to perform, so you can stay focused on your route. Built for Every Expedition With a full suite of adventure-ready modes and advanced training tools, the T-Rex Ultra 2 is built for the way you move outdoors. Track hikes, treks, mountaineering, trail runs, strength training workouts, and more with precision metrics that help you train smart and stay prepared for the next big push. From base camp intervals to summit-day efforts, your watch keeps pace with your goals. Stay Connected Without Breaking Stride Even in rugged terrain, you can stay connected without pulling out your phone. Take Bluetooth calls from the trail, use Zepp Flow™ to reply to Android messages hands-free¹¹, and listen to training prompts or navigation alerts through the built-in speaker. Zepp App, Powering Amazfit Your free companion for checking nutrition, fitness progress, sleep recovery, and trends is now able to simultaneously connect different Amazfit devices, like the Helio Strap, for advanced data fusion that sharpens training analysis — all in one easy-to-use app. Real-Time Performance Get real-time notifications that tell you how you're performing compared to your previous workouts¹². Zepp Coach™ Get personalized AI-generated training programs, including running plans for 5K, 10K, half and full marathons. Your plan will update based on your performance and recovery. Smarter Metrics Track key performance metrics like lactate threshold, VO₂ Max, Training Stress Balance, Training Load, and Training Effect to optimize your training and make every workout count. 180+ Sports Modes Access versatile sports modes, including hybrid training, running modes with advanced metrics like vertical amplitude and ground contact time, HYROX race and training options, and strength training with auto-recognized exercises. BioCharge™ Monitoring From the moment you wake up after a night of rest, your BioCharge™ score will adapt based on your daily workouts, activities, and stress levels. BioTracker™ Technology Track¹³ your real-time heart rate, sleep quality, blood oxygen and stress, 24/7. RestoreIQ™ Our sleep tracking algorithm helps you stay on top of your recovery with detailed insights into your heart rate variability, sleep quality¹⁴, breathing patterns, sleep stages, and even naps. One-Tap Measuring Test your heart rate, stress level, blood-oxygen, and breathing rate simultaneously for a quick overview of all four metrics in only 45 seconds.