Adventure Watches Head to head
Amazfit T-Rex Ultra 2 vs Amazfit T-Rex 3 Pro
The Amazfit T-Rex Ultra 2 leads on battery, smartwatch use (rated) and GPS battery, most accurate mode. They are level on dual-frequency GPS, offline maps on the watch, flashlight, sapphire lens, water resistance, ECG and cellular version available. At list price the Amazfit T-Rex 3 Pro is $150 cheaper.
Amazfit T-Rex Ultra 2
$549.99
Maker's list price, checked Oct 7, 2026
Model T-Rex Ultra 2
Leads on 2 of 9 specs
Amazfit T-Rex 3 Pro 48mm
$399.99
Maker's list price, checked Oct 7, 2026
Model T-Rex 3 Pro (48mm)
Leads on 0 of 9 specs
Who leads on specs?
Counted on the 9 specs both makers publish.
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Choose the Amazfit T-Rex Ultra 2 if
Battery, smartwatch use (rated) and GPS battery, most accurate mode matter more to you than the price difference.
Choose the Amazfit T-Rex 3 Pro if
You want the lower price and can live without the Amazfit T-Rex Ultra 2's advantages listed above.
Spec by spec
Every spec side by side. A tick and a green cell mark the better figure.
| Spec | Amazfit T-Rex Ultra 2 | Amazfit T-Rex 3 Pro | Who leads |
|---|---|---|---|
| List price | $549.99 | $399.99 | Amazfit T-Rex 3 Pro |
| Battery, smartwatch use (rated) | 720 hr | 600 hr | Amazfit T-Rex Ultra 2 |
| GPS battery, most accurate mode | 50 hr | 38 hr | Amazfit T-Rex Ultra 2 |
| Case weight (no band) | Not listed | 52 g | Can’t compare: not listed |
| Dual-frequency GPS | Yes | Yes | Level |
| Offline maps on the watch | Yes | Yes | Level |
| Flashlight | Yes | Yes | Level |
| Sapphire lens | Yes | Yes | Level |
| Water resistance | 100 m | 100 m | Level |
| ECG | No | No | Level |
| Cellular version available | No | No | Level |
| Case size | 51 mm | 48 mm | For information |
