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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerAmazfit T-Rex 3 vs Suunto Race
The Amazfit T-Rex 3 takes the lead with its 27-day battery life, which crushes the Suunto Race's 26-day capability. This is a big deal if you want a smartwatch that lasts longer between charges, especially on outdoor adventures. In real-world use, the T-Rex 3's 1.5-inch AMOLED display at 2000 nits brightness makes it super easy to read even in direct sunlight. You'll appreciate the extra screen space and clarity, especially when navigating offline maps or tracking workouts in bright conditions.
⚖️ Weight: 2.41 oz vs 2.93 oz💽 Storage: 32 GB vs 16 GB🏷️ Battery: 700 mAh vs 500 mAh
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Amazfit T-Rex 3
★4.5
(1,926)•Amazon
Compatibility:Android 7.0 or later; iOS 14.0 or later (Zepp App required)
Operating System:Zepp OS 4
Case Size:48.5mm x 48.5mm x 13.75mm
Case Material:Polymer middle frame; Stainless steel bezel (316L)
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Suunto Race
★4.2
(297)•Amazon
Compatibility:Android and iOS (via Suunto app)
Operating System:Suunto UI
Case Size:49mm (49 x 49 x 13.3 mm / 1.93 x 1.93 x 0.52 in)
Case Material:Bezel: Stainless Steel; Case: Glass fiber reinforced polyamide; Glass: Sapphire crystal; Strap: Silicone
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Key spec differences
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
Winner= clear advantage
Spec
Amazfit T-Rex 3
Suunto Race
Display2 specs
Display SizeKey
Amazfit T-Rex 3
1.5 in (38.1 mm) diameter
Suunto Race
1.43 in
Resolution
Amazfit T-Rex 3
480 x 480 pixels (322 ppi)
Suunto Race
466 x 466 pixels (1,000 nits brightness)
Performance1 specs
Storage
Amazfit T-Rex 3
32GB (Approx. 26GB user-accessible for Music/Maps)Winner
Suunto Race
16 GB (Steel model) / 32 GB (Titanium model)
Battery1 specs
Battery CapacityKey
Amazfit T-Rex 3
700 mAh; Up to 27 days (Typical usage); Up to 13 days (Heavy usage); Up to 42 hours (Accuracy GPS mode); Up to 114 hours (GPS Long Battery Life)
Suunto Race
Up to 26 days (Daily Mode); Up to 12 days (Daily HR + AOD); 40 hours (Performance Training / Dual-band GNSS)
Design2 specs
Weight
Amazfit T-Rex 3
68.3 g (without strap)Winner
Suunto Race
83 g / 2.93 oz (Steel model)
Water Resistance
Amazfit T-Rex 3
10 ATM (100 meters); Freediving certified (EN13319) to 45m
Suunto Race
100 m (10 ATM)
Software1 specs
Operating System
Amazfit T-Rex 3
Zepp OS 4
Suunto Race
Suunto UI
Connectivity1 specs
Connectivity
Amazfit T-Rex 3
Wi-Fi (2.4GHz); Bluetooth 5.2; BLE
Suunto Race
Bluetooth, Wi-Fi (for map downloads)
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
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Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: Amazfit T-Rex 3 vs Suunto Race
Amazfit T-Rex 3
★4.5(1,926)Amazon
Suunto Race
★4.2(297)Amazon
| Criterion | Amazfit T-Rex 3 | Suunto Race |
|---|---|---|
| Rating | ★4.5(1,926)Amazon | ★4.2(297)Amazon |
Compatibility | Android 7.0 or later; iOS 14.0 or later (Zepp App required) | Android and iOS (via Suunto app) |
Operating System | Zepp OS 4 | Suunto UI |
Case Size | 48.5mm x 48.5mm x 13.75mm | 49mm (49 x 49 x 13.3 mm / 1.93 x 1.93 x 0.52 in) |
Case Material | Polymer middle frame; Stainless steel bezel (316L) | Bezel: Stainless Steel; Case: Glass fiber reinforced polyamide; Glass: Sapphire crystal; Strap: Silicone |
Display Type | AMOLED; Gorilla Glass; Peak brightness 2000 nits | AMOLED touchscreen (High definition, always-on capable) |
Display Size | 1.5 in (38.1 mm) diameter | 1.43 in |
Resolution | 480 x 480 pixels (322 ppi) | 466 x 466 pixels (1,000 nits brightness) |
Always On Display | Yes | Yes |
Water Resistance | 10 ATM (100 meters); Freediving certified (EN13319) to 45m | 100 m (10 ATM) |
Durability | MIL-STD-810H (70°C heat / -30°C cold / Shock / Humidity); Mud-resistant bridge and buttons | MIL-STD-810H tested; Operating temp: -20°C to +55°C (-5°F to +130°F) |
GPS | Dual-band GNSS (L1+L5); 6 Satellite Positioning Systems (GPS, GLONASS, Galileo, BeiDou, QZSS, NAVIC) | Dual-band GNSS (L1 + L5); GPS, GLONASS, GALILEO, QZSS, BEIDOU |
Connectivity | Wi-Fi (2.4GHz); Bluetooth 5.2; BLE | Bluetooth, Wi-Fi (for map downloads) |
NFC Payments | Zepp Pay (Europe/parts of Asia only); Not supported on US models | No (Not supported) |
Sensors | BioTracker™ 6.0 PPG biometric sensor (SpO2, Heart Rate); Accelerometer; Gyroscope; Geomagnetic sensor; Barometric altimeter; Ambient light sensor; Temperature sensor (skin/water) | Optical heart rate; blood oxygen (SpO2); barometric altimeter; digital compass; accelerometer; gyroscope |
Health Features | Readiness Score; HRV (Heart Rate Variability); Sleep Breathing Quality; One-tap measuring (HR, SpO2, Stress, Breathing rate); Sleep stages (REM/Deep/Light); PAI Health Assessment | HRV measurement (Sleep & Daily); 24/7 heart rate; sleep tracking (stages & quality); blood oxygen; stress and recovery status |
Workout Modes | Hyrox Race mode; Ultramarathon; Freediving; Strength Training (auto-detection of 25 movements); Triathlon; Skiing; Snowboarding; Surf; and 170+ others | 95+ sport modes; Suunto Coach (AI-based training load & recovery); offline maps; route navigation; race time estimates |
Storage | 32GB (Approx. 26GB user-accessible for Music/Maps) | 16 GB (Steel model) / 32 GB (Titanium model) |
Speaker Mic | Microphone (for Zepp Flow voice commands); No Speaker (Buzzer/Beeper only for alerts) | No (No built-in speaker or microphone) |
Calls | No (Cannot answer calls on wrist; can reject/ignore calls) | No (Notification alerts only) |
Battery | 700 mAh; Up to 27 days (Typical usage); Up to 13 days (Heavy usage); Up to 42 hours (Accuracy GPS mode); Up to 114 hours (GPS Long Battery Life) | Up to 26 days (Daily Mode); Up to 12 days (Daily HR + AOD); 40 hours (Performance Training / Dual-band GNSS) |
Charging | Magnetic charging base (2-pin); Approx. 3 hours to full charge | Suunto magnetic fast charger (USB-A) |
Weight | 68.3 g (without strap) | 83 g / 2.93 oz (Steel model) |
Band Sizes | 22mm width; Fits 145–210mm wrists (Proprietary screws but includes adapters for standard bands in some regions) | Fits wrist sizes 125–175 mm; standard 22 mm quick-release width |
Extras | Offline Maps (Contour/Terrain); Turn-by-turn navigation; Zepp Flow (AI voice assistant); Night Display mode; Glove mode | Global offline outdoor maps (free); weather widgets; phone media controls; customizable watch faces; digital crown navigation |
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Amazfit T-Rex 3
Rating:★4.5(1,926)Amazon
Compatibility:Android 7.0 or later; iOS 14.0 or later (Zepp App required)
Operating System:Zepp OS 4
Case Size:48.5mm x 48.5mm x 13.75mm
Case Material:Polymer middle frame; Stainless steel bezel (316L)
Display Type:AMOLED; Gorilla Glass; Peak brightness 2000 nits
Display Size:1.5 in (38.1 mm) diameter
Resolution:480 x 480 pixels (322 ppi)
Always On Display:Yes
Water Resistance:10 ATM (100 meters); Freediving certified (EN13319) to 45m
Durability:MIL-STD-810H (70°C heat / -30°C cold / Shock / Humidity); Mud-resistant bridge and buttons
GPS:Dual-band GNSS (L1+L5); 6 Satellite Positioning Systems (GPS, GLONASS, Galileo, BeiDou, QZSS, NAVIC)
Connectivity:Wi-Fi (2.4GHz); Bluetooth 5.2; BLE
NFC Payments:Zepp Pay (Europe/parts of Asia only); Not supported on US models
Sensors:BioTracker™ 6.0 PPG biometric sensor (SpO2, Heart Rate); Accelerometer; Gyroscope; Geomagnetic sensor; Barometric altimeter; Ambient light sensor; Temperature sensor (skin/water)
Health Features:Readiness Score; HRV (Heart Rate Variability); Sleep Breathing Quality; One-tap measuring (HR, SpO2, Stress, Breathing rate); Sleep stages (REM/Deep/Light); PAI Health Assessment
Workout Modes:Hyrox Race mode; Ultramarathon; Freediving; Strength Training (auto-detection of 25 movements); Triathlon; Skiing; Snowboarding; Surf; and 170+ others
Storage:32GB (Approx. 26GB user-accessible for Music/Maps)
Speaker Mic:Microphone (for Zepp Flow voice commands); No Speaker (Buzzer/Beeper only for alerts)
Calls:No (Cannot answer calls on wrist; can reject/ignore calls)
Battery:700 mAh; Up to 27 days (Typical usage); Up to 13 days (Heavy usage); Up to 42 hours (Accuracy GPS mode); Up to 114 hours (GPS Long Battery Life)
Charging:Magnetic charging base (2-pin); Approx. 3 hours to full charge
Weight:68.3 g (without strap)
Band Sizes:22mm width; Fits 145–210mm wrists (Proprietary screws but includes adapters for standard bands in some regions)
Extras:Offline Maps (Contour/Terrain); Turn-by-turn navigation; Zepp Flow (AI voice assistant); Night Display mode; Glove mode
✓ Pros:
- • Incredible 27-day battery life crushes the competition
- • Large, bright 1.5" AMOLED (2000 nits) is easy to read outdoors
- • Free offline contour maps with turn-by-turn navigation
- • Freediving certified to 45m (rare at this price point)
- • Generous 32GB storage for offline music and global maps
✗ Cons:
- • No built-in speaker (alerts are beeps/vibrations only)
- • NFC payments (Zepp Pay) are not supported on US hardware
- • Large 48.5mm case is bulky for smaller wrists
- • Proprietary strap system requires adapters to use standard bands
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
Suunto Race
Rating:★4.2(297)Amazon
Compatibility:Android and iOS (via Suunto app)
Operating System:Suunto UI
Case Size:49mm (49 x 49 x 13.3 mm / 1.93 x 1.93 x 0.52 in)
Case Material:Bezel: Stainless Steel; Case: Glass fiber reinforced polyamide; Glass: Sapphire crystal; Strap: Silicone
Display Type:AMOLED touchscreen (High definition, always-on capable)
Display Size:1.43 in
Resolution:466 x 466 pixels (1,000 nits brightness)
Always On Display:Yes
Water Resistance:100 m (10 ATM)
Durability:MIL-STD-810H tested; Operating temp: -20°C to +55°C (-5°F to +130°F)
GPS:Dual-band GNSS (L1 + L5); GPS, GLONASS, GALILEO, QZSS, BEIDOU
Connectivity:Bluetooth, Wi-Fi (for map downloads)
NFC Payments:No (Not supported)
Sensors:Optical heart rate; blood oxygen (SpO2); barometric altimeter; digital compass; accelerometer; gyroscope
Health Features:HRV measurement (Sleep & Daily); 24/7 heart rate; sleep tracking (stages & quality); blood oxygen; stress and recovery status
Workout Modes:95+ sport modes; Suunto Coach (AI-based training load & recovery); offline maps; route navigation; race time estimates
Storage:16 GB (Steel model) / 32 GB (Titanium model)
Speaker Mic:No (No built-in speaker or microphone)
Calls:No (Notification alerts only)
Battery:Up to 26 days (Daily Mode); Up to 12 days (Daily HR + AOD); 40 hours (Performance Training / Dual-band GNSS)
Charging:Suunto magnetic fast charger (USB-A)
Weight:83 g / 2.93 oz (Steel model)
Band Sizes:Fits wrist sizes 125–175 mm; standard 22 mm quick-release width
Extras:Global offline outdoor maps (free); weather widgets; phone media controls; customizable watch faces; digital crown navigation
✓ Pros:
- • Vibrant 1.43” AMOLED screen with sapphire crystal durability
- • Excellent battery life (up to 40 hours in max accuracy GPS mode)
- • Free global offline maps with intuitive digital crown zooming
- • Dual-band GNSS provides highly accurate tracking in difficult terrain
- • Military-grade (MIL-STD-810H) durability
✗ Cons:
- • No NFC payments or music storage (music controls only)
- • No built-in speaker or microphone for calls
- • 49mm case size is bulky for smaller wrists
- • Steel version is noticeably heavier (83g) than the Titanium model (69g)
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
Which one is better?
The Amazfit T-Rex 3 is the better buy for most people - its 27-day battery life crushes the Suunto Race's 26 days. That said, grab the Suunto Race if you need a rugged watch with a premium sapphire crystal display - it weighs 2.93 oz.
Who should buy each?
Choose the Amazfit T-Rex 3 if: you want a battery that lasts over 3 weeks, you need a larger display for outdoor readability, or you plan on offline navigation.
Choose the Suunto Race if: you prefer a similar-weight watch, you want premium durability with sapphire glass, or you need advanced GPS features for challenging terrains. (2.93 oz weight, 16 GB storage)
Conclusion
Amazfit T-Rex 3 and Suunto Race are both solid choices. Match the strengths above to your budget and workflow to make the best call.
Frequently Asked Questions
+Which has better value?
Amazfit T-Rex 3 excels if you value incredible 27-day battery life crushes the competition. Suunto Race is better if you prioritize vibrant 1.43” amoled screen with sapphire crystal durability. Pick based on your budget and daily use.
+Is this an independent review?
Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.
+Do newer models exist?
Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.
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