T-Rex Dual Solar

Amazfit T-Rex Dual Solar is built for explorers who spend extended time beyond the grid, where planning every charge isn't always possible. Designed as the world's first dual-sided solar charging system for an AMOLED smartwatch, it helps extend battery life so you can spend more time exploring and less time thinking about power.

Yes, T-Rex Dual Solar supports solar charging, capturing energy from the AMOLED display or the innovative glass-ceramic back plate.

Amazfit T-Rex Dual Solar offers up to 25 days of typical use, up to 34 days of typical use + 3 hours of front side solar charging* and up to 51 days of typical use + 3 hours of rear side solar charging*.

*Usage follows the typical usage scenario, with the watch being exposed to three hours of sunlight under a brightness of 50,000 Lux.

Yes, Amazfit T-Rex Dual Solar is compatible with both Apple iOS and Samsung, Google or other Android OS based mobile phones.

Yes. The Amazfit T-Rex Dual Solar features Low Temperature Mode, which helps keep essential functions operational in temperatures as low as -30°C (-22°F)​. This makes it a reliable outdoor smartwatch for cold-weather activities such as winter hiking, skiing, snowboarding, mountaineering, and expeditions.

Yes. You can create point-to-point routes directly from your T-Rex Dual Solar using preloaded maps—no phone connection or mobile network required. You can store up to 100 routes on the watch, preview each route before departure, and adjust your destination or route plan during a hike.

The T-Rex Dual Solar also provides smart turn-by-turn navigation that updates as you move. If you go off route, automatic rerouting can calculate a new path based on your real-time location and destination.

Yes. You can share your real-time location, heading, and key activity information with family, friends, or teammates while you explore. It is useful for solo hikes, trail runs, rides, and remote outdoor adventures, helping others stay informed about your journey.

Yes. T-Rex Dual Solar includes a built-in flashlight with white and red light modes. Use white light to set up camp or navigate before sunrise, and switch to red light to preserve night vision in low-light conditions. It is also useful for checking gear, reading maps, and responding to changing conditions after dark.

Is the Amazfit T-Rex Dual Solar smartwatch waterproof? If so, how deep can it go?

T-Rex Dual Solar features a water-resistance grade of 10 ATM, meaning it can withstand pressure equivalent to 100 meters or 328 feet of static water depth for up to 10 minutes.

Sports Modes: 180+

Smart Recognition of:
25 strength training movements¹⁴
8 sports movements¹⁵

Template Creation¹⁶:
Training templates (via the Zepp App)
HYROX Training templates (Via the Zepp App)
Interval training (via the watch)

Advanced Running Support:
Track Run mode, Smart trajectory correction, Virtual pacer

Connection to Peripheral Workout Devices:
Heart rate belt
Running power meter
Cycling power meter
Cycling speedometer
Cycling cadence meter

Sports Coach: Zepp Coach™

Workout Status: PeakBeats™

Sync to 3rd Party Fitness Apps¹⁷:
Strava, Wikilocs, komoot, TrainingPeaks, Relive, Runkeeper, adidas Running, Apple Health, Google Fit, intervals.icu, Treinus

Sports Convenience:
Live broadcast of sports data¹⁸
Live broadcast of turn directions
Sports data stays on-screen
Conditional pause

HybridCharge™: Support

24H Monitoring:
Heart rate¹⁹
Blood-oxygen saturation
Stress level
Skin temperature (thermometer)

Manual Measurement:
Heart rate
Blood-oxygen saturation
Stress level
One-tap measurement

Sleep Quality Monitoring²⁰:
Sleep heart rate variability
Sleep stages (including REM)
Daytime naps
Sleep schedule
Sleep breathing quality
Sleep score

Breathing Exercise: Support
Breath-holding training (downloadable from Zepp App)
Breath-holding test (downloadable from Zepp App)

Health reminders:
Abnormally high & low heart rate
Low blood-oxygen
High stress level
Prompts to perform stress-reducing breathing exercise
Altitude prompts for blood-oxygen test

Health assessment system: PAI

Positioning:
Dual-Band: Support
Single-Band: Support
Satellite Positioning Systems: 6

GPS Modes:
Accuracy Mode: Support
Automatic Mode: Support (intelligently switches GPS settings based on signal strength, to save power)
Power Saving Mode: Support
GPS Long Battery Life Mode: Support (only supported by Hiking & Climbing sports modes)
GPS Max Battery Life: Support (only supported by Hiking & Climbing sports modes)
Trail Running - Normal Mode: Support
Trail Running - Heavy Mode: Support

Navigation & Maps:
Offline Maps: Support
Turn-by-Turn Directions: Support
Point of Interest Search: Support
Round-Trip Route Creation: Support
Route Planning: Support
Auto-Rerouting: Support
Waypoint Reminders: Support
Route Import: Support
Real-time Navigation: Support
Real-time Movement Tracking: Support
Save Location Point: Support
Direct Return Navigation: Support
Route Deviation Reminders: Support

Outdoor & Environment Tools:
Solar Charging: Support
Flashlight: Support (4 white light brightness levels; 1 red light mode; Boost Mode )
Altitude Assistant: Support
Ultra-low Temperature Mode: Support (after enabling via watch settings)
Night Display: Support
GPS Calibration: Support
Compass: Support

Information & Early Warning Alerts:
Sunrise & Sunset: Support
Moon Phase: Support
Tide Display: Support
Storm Warning Alerts: Support
High Altitude Blood-Oxygen Reminders: Support

AI Assistant:
Zepp Flow™: Select countries and regions,Hong
Kong and Macau are not supported

Convenience:
Membership Cards²¹: Support
Shortcut Cards: Support
OTA Update via Wi-Fi: Support
Events Reminder: Support
To Do List: Support

Smartphone Assistance:
Bluetooth Calls: Support
Bluetooth Phone Music Control: Support
Bluetooth Phone Camera Control
(iOS only): Support
Phone Call Notifications: Support
SMS Notifications: Support
App Notifications: Support
Call Quick Reply(Android only): Support
Find My Phone: Support

Timing:
Alarm Clock: Support
World Clock: Support
Stopwatch: Support
Pomodoro Timer: Support

Daily Life:
Weather: Support
Thermometer: Support
Sedentary Reminders: Support
Screen Lock & Password: Support
Do Not Disturb: Support
Voice Memo: Support
Daily Briefing²² (Morning Updates & Evening Review): Support
Music Storage: Support

Running & walking:
Outdoor running, Treadmill, Walking, Trail running, Indoor walking, Race walking, Track run, Ultramarathon, Dog walking

Cycling:
Outdoor cycling, Indoor cycling, Mountain biking, BMX, E-Bike, E-MTB, Gravel cycling, Bicycle commuting, Bicycle touring, Road cycling, Cyclocross

Swimming:
Pool swimming, Open water swimming, Fin swimming, Artistic swimming

Outdoor workouts:
Climbing, Hiking, Orienteering, Rock climbing, Fishing, Hunting, Skateboarding, Roller skating, Parkour, ATV, Offroad motorcycle, Mountain hiking, Rucking, Expedition

Indoor workouts:
Hybrid training, 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, Bouldering, Indoor rock climbing, Ski machine

HYROX:
HYROX race, HYROX PFT, HYROX training, HYROX Simulation

Dance:
Square dance, Ballroom dance, Belly dance, Ballet, Street dance, Zumba, Latin dance, Jazz dance, Hip-hop dance, Pole dance, Breaking, Folk dance, Dance, Modern dance, Disco, Tap dance

Combat sports:
Boxing, Wrestling, Martial arts, Tai Chi, Muay Thai, Judo, Taekwondo, Karate, Kickboxing, Fencing, Jiu-Jitsu, Kendo

Ball workouts:
Soccer, Beach soccer, Basketball, Volleyball, Beach volleyball, Baseball, Softball, Rugby, Hockey, Table tennis, Badminton, Tennis, Golf, Golf Swing, Squash, Gateball, Cricket, Handball, Bowling, Polo, Racquetball, Billiards, Sepak takraw, Dodgeball, Water polo, Ice hockey, Shuttlecock, Indoor soccer, Footbag, Bocce ball, Pelota, Floorball, Pickleball, Padel

Water workouts:
Outdoor boating, Sailing, Kayak, Rowing, Dragon boat, Paddleboarding, Indoor surfing, Tubing, Water skiing, Snorkeling, Kitesurfing, Surfing, Wakesurfing

Diving workouts:
Outdoor freediving, Indoor freediving, Recreational diving, Spearfishing

Winter workouts:
Skiing, Snowboarding, Downhill skiing, Cross-country skiing, Ski orienteering, Biathlon, Outdoor skating, Indoor skating, Curling, Bobsleigh and tobogganing, Sledding, Snowmobile, Snowshoeing, Ski mountaineering

Extreme workouts: Skydiving, Paragliding, Wingsuit flying

Leisure workouts:
Hula hooping, Frisbee, Darts, Kite flying, Tug-of-war, Jianzi kicking, Esports, Air walker, Swing, Shuffleboard, Foosball, Motion sensing game

Board & card games:
Chess, Checkers, Go, Bridge, Board game

Others:
Jumping rope, Archery, Equestrianism, Driving, Stair climbing, Triathlon, Multisport, Snow shoveling

1. The battery life may vary according to the settings, operation conditions and other factors. So the actual result may differ from the laboratory data. Solar charging helps slow down power consumption to extend battery life, but it cannot replace standard USB cable charging. Solar charging is subject to temperature restrictions; once the charging temperature threshold is exceeded, the device will stop charging to protect itself. Solar charging will be disabled when the battery is nearly fully charged.  
   Typical usage for 25 days: Raise to wake (static watch face) 200 times; Notifications (no screen-on) 150 times; Screen-on operation 1 time (approx. 300s); Incoming call reminder 3 times, approx. 30s; Assisted sleep + respiratory sleep monitoring enabled for 8h; Standby heart rate monitoring on for 5min per session; Active heart rate detection for 2 hours.
   Front-side solar power: 34 days (solar condition: 50,000 LUX, 3 hours)
   Rear Solar Power: 51 days (Solar condition: 50,000 LUX, 3 hours)  
   Heavy Usage for 13 Days: 300 wrist raise to wake (static watch face); 150 notifications (without screen turning on); 8.6 minutes of Bluetooth calls per day; 8.6 minutes of music playback via Bluetooth earbuds per day; 1 screen-on operation (approx. 600 seconds); 3 incoming call reminders (approx. 30 seconds in total); 18 minutes of GPS-enabled exercise per day; 1 activation of 2nd-level white light on flashlight (approx. 30 seconds); 8 hours of enabled sleep assistance + respiratory sleep monitoring; standby heart rate enabled for 1 minute per measurement; activity heart rate monitoring for 5 hours.
   Front-side Solar Power: 15 days (Solar Condition: 50,000 LUX, 3 hours)
   Rear Solar Panel: 18 days (Solar condition: 50,000 LUX, 3 hours per day)  
   Sports Mode (Outdoor Run) Whole-kilometer reminder every 5 minutes + wrist raise to wake screen 20 times per hour.  
   Accuracy GPS Mode 41 hours: Enables heart rate monitoring and dual-frequency, full-constellation GPS workout tracking.
   Front-side solar: 47 hours (solar condition: continuous energy replenishment at 50,000 LUX).  
   GNSS Outdoor Extreme Mode 40 days: GPS positioning once per hour, wrist lift to wake screen 12 times per day, Compass operation 5 times per day, watch barrel operation once per day;
   Front Solar Panel: 47 Days (Solar Conditions: 50,000 LUX, 3 Hours)
   Rear Solar Panel: 180 days (Solar Condition: 50,000 LUX, 3 hours per day)  
   GPS positioning: 1 time per hour; wrist raise to wake screen: 12 times per day; Compass operations: 5 times per day; flashlight operation: 1 time per day  Clock mode, 55 days
   Front Solar Panel: 92 days (Solar condition: 50,000 LUX, 3 hours).
   Rear Solar Power: 424 days (Solar condition: 50,000 LUX, 3 hours).  
   Trail Running - Extreme Mode 33 hours (100% brightness + AOD enabled + navigation + 20 screen activations per hour); 7 voice announcements per full kilometer per hour; 21 navigation voice alerts (for route deviation) per hour; GPS exercise mode activated;  
   Trail Running - Normal Mode 48 Hours (50% brightness + AOD off + 10% stay on navigation page + voice broadcast off + GPS precision mode + 20 screen wake-ups per hour); 2 wrist wake-ups (navigation page), 10s each; 18 wrist wake-ups (data page), 10s each; 21 navigation alerts (voice off/navigation page), 8s each; 7 full-kilometer alerts (voice off/digital page), 10s each;  
   Low-temperature Mode (Outdoor Sports): 31 hours: 100 wrist-raise wakeups; 12 full-kilometer screen activations; GPS remains on during workouts.  
   Low-temperature mode (daily standby): 26 days: 150 push notifications per day, 100 wrist raises to check the time per day, 5 minutes of screen-on operation per day, and GPS motion tracking disabled.
   
2. 3,000nit brightness is not supported by the Low Temperature mode or if battery life is below 30%. Depending on your environment, the watch can reach up to 3,000nit brightness after automatic brightness has been enabled in the watch settings.
   
3. The low temperature mode is turned off by default and needs to be enabled in the watch settings. After being enabled, whenever the temperature of the watch surface is lower than -10°C, the watch automatically enters low temperature mode, and only limited functions can be engaged at this time. Due to the physical characteristics of lithium batteries, the endurance of watches in low temperature environments will be affected to a certain extent. The battery life while in ultra-low temperature environments may vary according to the settings, operation conditions and other factors, so the actual result may differ from the laboratory data.
4. The relevant data for the military standard certification MIL-STD-810H-2022 comes from the following report: SUER260800104371. Prolonged exposure is not recommended as it may damage the watch and its components.
5. When you reach 3,000+ meters, the watch will prompt you to take the blood-oxygen saturation test when you ascend over 400 meters within 24 hours; when you reach 4,000+ meters, it will prompt you to take the test when you ascend over 400 meters within 6 hours.
6. According to the ISO 22810:2010 standard, the Amazfit T-Rex Dual Solar achieves a rating of 10 ATM, for a water-resistance of up to 100 meters, and is therefore suitable for splashes, snow, showering, swimming, and some high-speed water sports. It has passed third-party testing conducted by SGS, and the report number is 68.189.26.07499.01. Remove the watch when taking a hot shower or trip to the sauna, since too much steam can affect the seal and make it less water-resistant in future. Do not wear the watch with a leather or metal strap when swimming – when preparing to swim, wear a silicone or fluoroelastomer strap or other suitable type. For activities where there is easy contact with bath products such as body wash, shampoo, and soapy water, if accidentally exposed, please rinse with clean water and soak for 30 minutes. For more information, please visit the support page at: support.amazfit.com. Suitability for, and resistance to, diving is according to the EN13319:2000 (report number: SUER260700090271 standard.
7. The Amazfit T-Rex Dual Solar can be used as a map browsing tool to import OSM map files. The offline map must match your real location to be displayed. Contour maps must be downloaded before use. When choosing a point on the map for navigation, the total distance is limited. The shown straight line back to the start of a journey may not be a practical route to follow due to environmental factors; this is only intended to help you keep track of your position in relation to the start point of the journey. Navigation functions are compatible with most outdoor sports modes.
8. Route creation has two methods: the user can choose between round-trip planning with multiple route options, or point-to-point navigation; route rerouting can only be used with point-to-point route navigation.
9. Indoor positioning services are not supported. Positioning speed and accuracy may be affected by the surrounding environment. The number of satellites connected to simultaneously, and specific satellite connections, may depend on your location.
10. Real-time performance scores and VO₂ Max are only supported within Outdoor Running, Trail Running, and Track Run modes.
11. Zepp Flow™ currently supports these languages: English, French, German, Italian, Spanish, Japanese, Korean, Portuguese,In Hong Kong and Macau regions currently does not support Zepp Flow assistant.
    WhatsApp speech-to-text replies, and receiving of picture messages from instant messaging platforms, require connection to an Android phone with Android 7 or above.
12. Connection to peripheral Bluetooth devices only supports devices with BLE connection.
13. The materials used in the packaging box are 100% environmentally friendly, including mineral-free inks and anodized aluminum used for hot stamping.
14. Smart recognition of strength training exercises can only be engaged within the Strength Training sports mode. 25 exercises are able to be recognized at time of product release.
15. Corresponding sports modes include: Outdoor Running, Treadmill, Walking, Indoor Walking, Outdoor Cycling, Pool Swimming, Rowing Machine, Elliptical. The accuracy and sensitivity of the workout recognition feature varies from person to person, and are related to the posture and proficiency of the user during their workout.
16. Training templates and interval training templates are compatible with: Strength training, Outdoor running, Treadmill, Outdoor cycling, Indoor cycling, Rope skipping, Rowing machine, Indoor fitness, Core training, and Stair climbing, Pool swimming, Mountain biking, BMX, Race waking, Track run, Cross-training, HIIT, HYROX training.
17. Fitness app availability may vary depending on your country or region. Apple Health is only available on iOS devices, and Google Fit is only available on Android devices.
18. Live broadcast of turn-by-turn directions and training data via Bluetooth headphones or the built-in speaker supports English and Chinese broadcasts; this must be enabled in the watch setting.
19. This product and the Zepp App are not medical devices and cannot be used for medical purposes, or as basis for diagnosis of any medical condition. Detection results are provided for reference only. Please consult professional medical institutions if you feel unwell. 24-hour monitoring of heart rate and blood-oxygen saturation (SpO₂) need to be enabled in the Zepp App. For heart rate monitoring, the user must enable Auto Heart Rate Monitor in the Zepp App, and the minimum value can be set to 1 minute. Abnormal heart rate alerts and the preset value need to be set in the Zepp App. To measure blood-oxygen saturation (SpO₂), please wear the watch tightly at one finger-width from the wrist, and keep your arm still for best results. SpO₂ alerts are sent if the detected rate is too low compared to the preset value, which needs to be set in the Zepp App, at a minimum of 80%. Movement, and environmental and physical characteristics can affect speed and accuracy of monitoring and measurement. The 24-hour stress level monitoring needs to be enabled on the watch or in the Zepp App. Alerts for high stress levels are based on the preset value, and prompts for the breathing exercise need to be enabled on the watch. Smart health alerts need to be enabled in the watch settings or Zepp App. To process the one-tap measurement and other manual metric measurements, please wear the watch tightly at one finger-width from the wrist, and keep your arm still for best results. Movement, and environmental and physical characteristics can affect speed and accuracy of monitoring and measurement.
20. Sleep monitoring can record night sleep and naps that last more than 20 minutes. Sleep Breathing Quality tracking needs to be enabled in the Zepp App or in the settings of the watch’s Sleep feature.
21. Due to the device’s storage limit, only a maximum of 20 membership cards can be added to the same account. Supported codes include Code 128, Code 39, UPC A, EAN 13, and EAN 8 and QR codes.
22. Daily briefing needs to be set in the Zepp App or in the watch settings, and the currently supported content is: weather, battery, sleep, schedule, PAI, yesterday’s activity.

The product images and screen content shown above are for reference purpose only. The actual product (including but not limited to its appearance, color and size) and screen display content (including but not limited to the background, UI and graphics) may differ slightly.

The data that is provided on this page without a specified source is taken from internal laboratories or supplier data, and has been obtained under a specific test environment. The product's actual performance may differ slightly due to product individual differences, software versions, usage conditions and environmental factors.

To provide product information, specifications and characteristics as accurately as possible, our company may adjust and revise the text descriptions, images and other content in the above pages at any time. Due to real-time changes in product batches and production-supply factors, we may modify the above information as required without providing a special notice.

The radio waves generated by the equipment may affect the normal operation of implanted medical equipment or personal medical equipment, such as pacemakers and hearing aids. If you use these devices, please consult their manufacturers for restrictions on using this device.

The product should not be worn in environments with strong magnetic fields such as MRI machines or medical imaging machines, as they may cause damage to the watch.