| General | |
|---|---|
| Manufacturer | Amazfit (Zepp Health) |
| Type | Rugged outdoor GPS smartwatch |
| Series | T-Rex |
| Released | 2023 |
| Price at launch | GBP 419 / USD 399.99 |
| Predecessor | None (first Ultra model) |
| Successor | T-Rex Ultra 2. See Release Radar. |
| Sizes | 47.3mm (medium) |
| Colours | Abyss Black, Sahara |
Specifications and features as at launch.
Jump to: Expert opinion | Specifications | Battery life | Features | Activity profiles | Quick answers | Further reading
Expert opinion
The T-Rex Ultra is Amazfit’s first Ultra-tier adventure watch, built with 316L stainless steel, dual-band GPS, and freediving support to 30 metres. It won a Good Design Award in 2023 and shipped with a 1.39 inch AMOLED display and 20-day typical battery life.
The June 2024 update added contour maps, turn-by-turn directions, Zepp Flow voice commands, and Readiness, moving the watch to Zepp OS 3.5. The display peaks at 1,000 nits, lower than the 3,000-nit panels on later Amazfit watches. The successor, the T-Rex Ultra 2, is larger with a brighter 1.5 inch display and longer battery life.
Amazfit T-Rex Ultra 2
GPS adventure watch
Specifications
| Display | |
|---|---|
| Size | 1.39 inch |
| Type | AMOLED |
| Resolution | 454 x 454 pixels |
| PPI | 326 |
| Peak brightness | 1,000 nits |
| Lens | Glass |
| Touchscreen | Yes |
| Physical | |
| Case size | 47.3mm (medium) |
| Thickness | 13.45mm |
| Weight | 89g (with strap) |
| Case material | 316L stainless steel bezel, back panel, bridge and buttons, polymer alloy middle frame |
| Water rating | 10 ATM, freediving to 30m (EN13319, ISO 6425) |
| Durability | 15 military-grade tests (report H202109248524-01EN) |
| Strap width | 22mm |
| © the5krunner. Link required. | |
| Sensors and positioning | |
| GPS | Dual-band (L1 and L5), six satellite systems |
| Heart rate | BioTracker PPG (supports blood-oxygen) |
| Other sensors | Barometric altimeter and depth gauge with water temperature, geomagnetic, gyroscope, acceleration, ambient light |
| Connectivity and storage | |
| Connectivity | Wi-Fi 2.4GHz, Bluetooth 5.0 BLE |
| Storage | Up to 2.3GB usable for music |
| Music | Onboard MP3 storage, playback via Bluetooth earbuds |
Battery life
| Mode | Battery life |
|---|---|
| Typical use | Up to 20 days |
| Battery saver | Up to 25 days |
| Clock mode | Up to 50 days |
| Heavy use | Up to 9 days |
| Accuracy GPS | Up to 28 hours |
| Automatic GPS | Up to 46 hours |
| Power Saving GPS | Up to 58 hours |
| Endurance GPS | Up to 80 hours |
| © the5krunner. Link required. | |
| Low temperature (GPS on) | 10 hours |
| Low temperature (GPS off) | 14 days |
The 500 mAh cell charges via a magnetic cable in around two hours. Endurance GPS mode works only within Hiking and Climbing modes.
Features
Plan
- Zepp Coach AI training plans
- Offline contour maps (added June 2024)
- Turn-by-turn directions (added June 2024)
- Route import and direct return navigation
- Save location points
- Readiness and HRV (added June 2024)
- Sleep, blood-oxygen and stress monitoring
Prepare
- VO2 Max and real-time performance
- PAI health assessment
- Heart rate recovery
- Heart rate belt and cycling power meter pairing
Perform
- 160+ sports modes
- Freediving to 30 metres with depth and water temperature
- Strength training with 25 auto-recognized exercises
- Environment tools: compass, barometer, altitude, storm alerts, sun and moon, tide
- GoPro and DJI action camera control
Connect
- Zepp Flow voice commands, Bluetooth headphones with mic required (added June 2024)
- Sync to Strava, adidas Running, Relive, Google Fit, Apple Health
- Smart notifications
- Find My Phone
Activity profiles
| Category | Profiles |
|---|---|
| Running | Outdoor running, Treadmill, Walking, Trail running, Indoor walking, Race walking, Track run |
| Cycling | Outdoor cycling, Indoor cycling, Mountain biking, BMX |
| Swimming | Pool swimming, Open water swimming, Fin swimming, Artistic swimming |
| Gym and fitness | Elliptical, Rowing machine, Stair-climbing machine, Stair stepper, Spinning, Indoor fitness, Mixed aerobics, Cross-training, Aerobics, Group calisthenics, Body combat, Strength training, Step training, Core training, Flexibility training, Free training, HIIT, Yoga, Pilates, Gymnastics, Horizontal bar, Parallel bars, Battling ropes, Stretching, Boxing, Wrestling, Martial arts, Tai Chi, Muay Thai, Judo, Taekwondo, Karate, Kickboxing, Fencing, Jiu-Jitsu, Kendo |
| Outdoor | Climbing, Hiking, Orienteering, Rock climbing, Fishing, Hunting, Skateboarding, Roller skating, Parkour, ATV, Offroad motorcycle |
| Other | Winter sports: Skiing, Snowboarding, Downhill skiing, Cross-country skiing, Ski orienteering, Biathlon, Outdoor skating, Indoor skating, Curling, Bobsleigh and tobogganing, Sledding, Snowmobile, Snowshoeing. Water sports: Outdoor boating, Sailing, Kayak, Rowing, Dragon boat, Paddleboarding, Indoor surfing, Tubing, Water skiing, Snorkeling. Ball sports: Soccer, Basketball, Volleyball, Tennis, Badminton, Table tennis, Golf swing, and others. Dance: Zumba, Ballet, Street dance, Latin dance, and others. Other: Jumping rope, Archery, Equestrianism, Driving, Stair climbing, Triathlon, Multisport, Skydiving. |
Amazfit T-Rex Ultra 2
GPS adventure watch
Quick answers
When was the Amazfit T-Rex Ultra released?
Amazfit released the T-Rex Ultra in 2023. The launch price was GBP 419 or USD 399.99.
Is the T-Rex Ultra waterproof?
T-Rex Ultra has a water rating of 10 ATM and supports freediving to 30m, recording depth and water temperature.
Does the T-Rex Ultra have maps?
Yes, T-Rex Ultra gained offline contour maps and turn-by-turn directions in a June 2024 update. It also supports route import and direct return navigation.
What is the T-Rex Ultra battery life?
Amazfit rates T-Rex Ultra at up to 20 days of typical use and up to 28 hours in Accuracy GPS mode. Endurance GPS reaches 80 hours, but works only within Hiking and Climbing modes.
Does the T-Rex Ultra have music?
Yes, T-Rex Ultra has onboard MP3 storage, with up to 2.3GB usable for music and playback through Bluetooth earbuds.
What size and weight is the T-Rex Ultra?
T-Rex Ultra has a 47.3mm case, is 13.45mm thick and weighs 89g with the strap. It takes a 22mm strap and has a 1.39 inch AMOLED display.
Further reading
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin from any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafe stick swimmers and runners carry. I use it.
- Speedo earplugs: Fewer ear infections and no cold-water dizziness. I use them.
- Dryrobe Advance: My winter changing robe for open-water swims. I use one. A cheaper option is the AONYIYI changing robe.
- Maurten: Race fuel that stays easy on the stomach. I use them.
- Beet It Sport nitrate shots: Beetroot shots I take in the days before a race. I use them.
- Garmin charging puck: The quickest way to top up before a session. I use one.
- Injinji: Toe socks that stop rubbing, so you run more. I use them.
- Ultimate toe protectors: Stop black toenails on long runs. They work. I use them.
- Compressport R2 v2 calf sleeves: My calf sleeves of choice. I use them.
- Cellucor C4: My pre-workout before hard sessions.
- TPU tubes: Schwalbe Aerothan, Tubolito and Pirelli SmarTube. Light, tiny spares. I use all three.
- G8 insoles: Adjustable insoles that are good. I use them.
- Cycplus Cube: A 97g electric pump that gets a road tyre rideable in two minutes. I carry one. 5% off with code THE5KRUNNER.
Watches and sensors
- Polar H10: My daily driver for waking HRV.
- Polar Verity Sense: My backup arm-worn HR sensor.
- Nomad bedside charger: Charges my iPhone and Apple Watch overnight. I use it, and many of their bands.
- Train.Red: The best muscle oxygen sensor I’ve used.
- Tymewear: Accurate heart rate and reliable ventilatory zones. I use it to pace endurance rides over an hour.
- Garmin Forerunner 970: A pro-grade triathlon watch. I use this.
- Apple Watch Ultra 4: My daily smartwatch. No phone needed on rides.
- Garmin Fenix 9 Pro: I’ve just bought one.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions.
- Helmets: Specialized S-Works Evade 3 for road riding, and Rudy Project Wing for TT-style races. I use both.
- Ravemen FR300: A front light that mounts under your Garmin or Wahoo. I use one.
- Wahoo TRACKR Radar: I use it on one bike and Varia on the other. They perform the same.
- Garmin Varia RTL515: Radar that warns you of cars from behind. I use this model.
- Wahoo ELEMNT Roam 3: The bike computer that’s easy to use. I use mine on most rides.
- Favero Assioma Pro RS2: Accurate power pedals that swap easily between bikes. I use this model.
Home and indoor training
- NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
- Google Wifi: Keeps Zwift connected in my pain cave. I use it.
- Apple TV 4K: Zwift on the big screen. I use two.
- Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.
Health, recovery and sleep
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet.
- hDrop: Measures my sweat loss in summer and indoors.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
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