The Amazfit T-Rex series combines extreme durability, long battery life, powerful GPS, offline maps, health and recovery tracking, and training tools to help you prepare for your next adventure.
Winter Navigation
Ski confidently with 15,000 global ski resort trail maps, or adventure off trail with powerful with dual-band GPS
Mountaineering
Monitor ascent rate, weather patterns, heart rate, VO2 max, and altitude alerts with expedition length battery life.
Trail Running
Plan routes, turn-by-turn directions, nearby points of interest, and reroute automatically.
Mountain Biking
Follow trail routes, measure ride distance, monitor elevation, heart rate, and record workout data.
Built-In Flashlight
Light when you need it at camp or on the trail with red or white flashlight, with ultra bright beam or SOS flashing.
"Definitely worth getting instead of a garmin. Already had a Trex 3 pro. The feel of the watch will not disappoint. Had the watch a little over week and I am happy with my decision. Definitely recommend." -Raymond
T-Rex 3 Pro (44mm)
"Fantastic Smartwatch that is fully capable of doing everything other much more expensive Smartwatches can do. It beats out both the newly released Samsung ultra 2 and soon to be apple ultra 4 on battery endurance and in several other ways."
-Ricardo
T-Rex 3 Pro (48mm)
"Amazfit continuously delivers an exceptional user experience with top grade products - I love the T-rex 3 Pro and will not be using anything else going forward- you got me Amazfit!!!"
-Steve
T-Rex 3
"I have owned Apple Watch, Fitbit and Garmin and find this one right up there with more expensive watches. I honestly have no negatives to say about this watch."
-David L.
Compare T-Rex Smartwatches
Features
T-Rex Dual Solar
51mm
T-Rex Ultra 2
51mm
T-Rex 3 Pro
48mm
T-Rex 3 Pro
44mm
T-Rex 3
48mm
Display
1.32" AMOLED
1.5" AMOLED
1.5" AMOLED
1.32" AMOLED
1.5" AMOLED
Screen Material
Sapphire Glass
Sapphire Glass
Sapphire Glass
Sapphire Glass
Corning® Gorilla® Glass
Peak Brightness
3000 nits
3000 nits
3000 nits
3000 nits
2000 nits
Bezel & Buttons
Grade 5 Titanium
Grade 5 Titanium
Grade 5 Titanium
Grade 5 Titanium
Stainless Steel
Dimensions
51.4 × 51.4 × 14.5mm
51 × 51 × 14.3mm
48 × 48 × 14mm
44.8 × 44.8 × 13.2mm
48.5 × 48.5 × 13.75mm
Strap Attachment
26mm Quick Release
26mm Quick Release
22mm Quick Release
22mm Quick Release
22mm Special Tool
Flashlight
✓
✓
✓
✓
×
Audio
Microphone and Speaker
Microphone and Speaker
Microphone and Speaker
Microphone and Speaker
Microphone
Bluetooth Calls
✓
✓
✓
✓
×
Workout Modes
180+
180+
180+
180+
170+
Water Resistance
10 ATM 50m Freediving
10 ATM 45m Freediving
10 ATM 45m Freediving
10 ATM 45m Freediving
10 ATM 45m Freediving
Typical Battery Life
Up to 25 Days
Up to 30 Days
Up to 25 Days
Up to 17 Days
Up to 27 Days
Accurate GPS Mode
Up to 41 Hours
Up to 50 Hours
Up to 38 Hours
Up to 26 Hours
Up to 42 Hours
Typical Use + 3 Hours of Front Side Solar Charging
Up to 34 Days
Not Supported
Not Supported
Not Supported
Not Supported
Typical Use + 3 Hours of Rear Side Solar Charging
Up to 51 Days
Not Supported
Not Supported
Not Supported
Not Supported
T-Rex Smartwatches FAQ:
Is a paid subscription required for Amazfit T-Rex smartwatches?
No, Amazfit T-Rex smartwatches do not require a paid subscription.
Are Amazfit T-Rex smartwatches built differently to be an outdoor watch?
Yes, Amazfit T-Rex Dual Solar, T-Rex Ultra 2, T-Rex 3 Pro, and T-Rex 3 are designed to be reliable ultra rugged watches built with the intense demands the outdoors in mind.
Which Amazfit T-Rex smartwatches have a built-in flashlight?
The Amazfit T-Rex Dual Solar, T-Rex Ultra 2 and T-Rex 3 Pro both feature a bright built-in LED flashlight to be used both as a safety tool and convince feature.
Are Amazfit T-Rex smartwatches compatible with iPhone and Android?
Yes, Amazfit T-Rex smartwatches are compatible with both iOS and Android devices.
Can Amazfit T-Rex smartwatches help improve sleep quality?
Yes, Amazfit T-Rex smartwatches measure sleep quality and also overall health monitoring, including:
Heart rate
Blood oxygen (SpO₂)
Stress level
Sleep quality
Sleep heart rate variability
Sleep stages (and REM)
Daytime naps
Sleep bedtime and wakeup times
Sleep breathing quality
Which Amazfit T-Rex smartwatches have GPS?
All of the Amazfit T-Rex Dual Solar, T-Rex Ultra 2, T-Rex 3 Pro and T-Rex 3 have powerful GPS with six-satellite positioning technology to accurately track any outdoor activity in the toughest of terrain. T-Rex GPS can be used to navigate new routes, or review routes take while running, walking, cycling, or hiking.
Can I make and receive phone calls from an Amazfit T-Rex smartwatch?
Yes, Amazfit T-Rex Dual Solar, T-Rex Ultra 2 and T-Rex 3 Pro support Bluetooth calls and texts.
Can I run without my phone and still use maps and route tracking with the Amazfit T Rex?
Yes, with highly accurate six-satellite GPS positioning and free downloadable offline maps, T-Rex smartwatches provide phone-free route navigation.
Are the Amazfit T-Rex smartwatches waterproof?
Yes, the Amazfit T-Rex Dual Solar, T-Rex Ultra 2, T-Rex 3 Pro and T-Rex 3 are water-resistant to 10 ATM, meaning it can withstand water pressure up to 328 feet deep (100 meters) for up to 10 minutes.
Why doesn't the T-Rex series smartwatch package include a USB-C cable?
Many users already have an extra unused USB-C cable. Amazfit is committed to sustainability to minimize environmental impact and waste reduction. If you do not have one, please reach out to our Customer Support at support.na@amazfit.com
Who is Amazfit?
Amazfit is a leader in smartwatch technology with over 10M users globally. Amazfit is the official wearable partner of HYROX, and sponsors elite athletes like running back Derrick Henry, gold medalist Gabby Thomas, adventure photographer Chris Burkard, and many more.
