Amazfit T-Rex Dual Solar vs Suunto Vertical 2 specs comparison
Both are serious AMOLED outdoor watches with sapphire displays, offline maps, dual-band GPS and 100-metre water resistance, but their battery strategies are quite different. The T-Rex Dual Solar uses solar to extend its 25-day typical runtime, while the Suunto Vertical 2 has no solar but offers up to 65 hours in its most accurate multi-band GPS mode and a larger 1.5-inch display.
Full comparison
The full record
75 specifications across 6 areas, with 30 genuine differences.
1. Design & display Mixed
Fact
Amazfit T-Rex Dual Solar
Suunto Vertical 2
Release date
2026-09-22
2025-09-30
Physical size
51.4 mm diameter; 16.9 mm thick including heart-rate sensor; 14.5 mm excluding sensor
49 x 49 x 13.6 mm
Weight
69 g without strap
87 g (stainless steel); 74 g (titanium)
Material
Grade 5 titanium bezel and buttons; fiber-reinforced polymer middle frame; Grade 5 titanium and glass-ceramic back
Stainless steel or Grade 5 titanium bezel; sapphire crystal; glass-fibre-reinforced polyamide case; silicone strap
Water resistance
10 ATM; recreational diving to 50 m
10 ATM
Color options
Basalt Black
Stainless steel and Grade 5 titanium variants
Display type
AMOLED
LTPO AMOLED
Display size
1.32 inch
1.5 inch
Display resolution
466 x 466 pixels (353 ppi)
466 x 466 pixels
Display brightness
Up to 3,000 nits
Up to 2,000 nits
Display protection
Sapphire glass
Sapphire crystal
2. Battery & charging Amazfit T-Rex Dual Solar
Fact
Amazfit T-Rex Dual Solar
Suunto Vertical 2
Battery
Rechargeable battery; 660 mAh
Rechargeable lithium-ion battery
Battery life
Up to 25 days typical; 13 days heavy use; up to 34 days with front solar / 51 days with rear solar (3 h/day at 50,000 lux); up to 41 hours accurate GPS; Outdoor Extreme up to 40 days / 180 days with continuous rear solar at 50,000 lux
Up to 20 days smartwatch use; up to 40 days standby; up to 65 hours all-systems multi-band GNSS; up to 75 hours all-systems single-band GNSS; up to 250 hours power-saving GNSS
Charging
Magnetic charging head; dual-sided solar charging
Magnetic USB charging cable
3. Sensors & positioning Amazfit T-Rex Dual Solar
Fact
Amazfit T-Rex Dual Solar
Suunto Vertical 2
GNSS type
Built-in dual-band GNSS
Built-in dual-band GNSS
GPS
Yes
Yes
GALILEO
Yes
Yes
GLONASS
Yes
Yes
QZSS
Yes
Yes
Beidou
Yes
Yes
Accelerometer
Yes
Yes
Barometric altimeter
Yes
Yes
Compass
Yes
Yes
Ambient light sensor
Yes
Yes
Optical heart rate
Yes
Yes
Electrical heart rate
No
No
SpO2
Yes
Yes
Temperature
Yes
Yes
Galvanic skin response
No
No
Microphone
Yes
No
Speakers
Yes
No
Vibration motor
Yes
Yes
4. Health & activity Amazfit T-Rex Dual Solar
Fact
Amazfit T-Rex Dual Solar
Suunto Vertical 2
Steps
Yes
Yes
Distance
Yes
Yes
Calories burned
Yes
Yes
Floors
Yes
No
Sports tracking
180+ sports modes
Yes (115+ sports modes)
Sleep
Yes
Yes
Heart rate
Yes
Yes
HRV
Yes
Yes
Stress
Yes
Yes
Blood oxygen
Yes
Yes
Respiration rate
No
No
Skin temperature
Yes
No
ECG
No
No
Blood pressure
No
No
Body composition
No
No
Glucose
No
No
Hydration level
No
No
UV exposure
No
No
Calorie intake
No
No
Hyperglycemia risk assessment
No
No
Arterial stiffness detection
No
No
Pulse wave arrhythmia analysis
No
No
5. Smart features Mixed
Fact
Amazfit T-Rex Dual Solar
Suunto Vertical 2
Smartphone compatibility
Android 8.0+ and iOS 17.0+
Android and iOS
Operating system at launch
Zepp OS 6
Proprietary
Storage
26 GB available for maps, music, apps and data
32 GB
Bluetooth
Yes (5.2)
Yes
Wi-Fi
Yes (2.4 GHz)
Yes (802.11 b/g/n, 2.4 GHz)
NFC / connected pay
Yes (Zepp Pay, region-dependent)
NFC hardware only; no contactless payment feature
UWB
No
No
Cellular
No
No
Smartphone notifications
Yes
Yes
Bluetooth calling
Yes
No
Smartphone music control
Yes
Yes
On-board music storage
Yes
No
Voice assistant
Zepp Flow
No
6. Navigation & safety No clear edge
Fact
Amazfit T-Rex Dual Solar
Suunto Vertical 2
Maps
Yes (base, contour and ski-resort maps)
Yes (free global offline maps)
Offline maps
Yes
Yes
Navigation
Yes (turn-by-turn, POI display, route planning and waypoint navigation)
Offline maps, route navigation, breadcrumb trail and points of interest
Emergency SOS
No
No
Satellite SOS
No
No
Fall detection
No
No
LED flashlight
Yes
Yes
Diving
Yes (recreational diving to 50 m)
No scuba diving; freediving/snorkeling depth meter to 10 m