Adventure Watches Head to head
Galaxy Watch Ultra2 vs Amazfit T-Rex 3 Pro
The Galaxy Watch Ultra2 leads on ECG and cellular version available. The Amazfit T-Rex 3 Pro leads on battery, smartwatch use (rated) and case weight (no band). They are level on dual-frequency GPS and water resistance. At list price the Amazfit T-Rex 3 Pro is $300 cheaper.
Samsung Galaxy Watch Ultra2 47mm LTE
$699.99
Maker's list price, checked Oct 7, 2026
Model SM-L715UZKAXAA
Leads on 2 of 6 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 2 of 6 specs
Who leads on specs?
Counted on the 6 specs both makers publish.
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Choose the Galaxy Watch Ultra2 if
ECG and cellular version available matter more to you than the price difference.
Choose the Amazfit T-Rex 3 Pro if
Battery, smartwatch use (rated) and case weight (no band) matter most, and you want to spend less.
Spec by spec
Every spec side by side. A tick and a green cell mark the better figure.
| Spec | Galaxy Watch Ultra2 | Amazfit T-Rex 3 Pro | Who leads |
|---|---|---|---|
| List price | $699.99 | $399.99 | Amazfit T-Rex 3 Pro |
| Battery, smartwatch use (rated) | 80 hr | 600 hr | Amazfit T-Rex 3 Pro |
| GPS battery, most accurate mode | Not listed | 38 hr | Can’t compare: not listed |
| Case weight (no band) | 61.5 g | 52 g | Amazfit T-Rex 3 Pro |
| Dual-frequency GPS | Yes | Yes | Level |
| Offline maps on the watch | Not listed | Yes | Can’t compare: not listed |
| Flashlight | Not listed | Yes | Can’t compare: not listed |
| Sapphire lens | Not listed | Yes | Can’t compare: not listed |
| Water resistance | 100 m | 100 m | Level |
| ECG | Yes | No | Galaxy Watch Ultra2 |
| Cellular version available | Yes | No | Galaxy Watch Ultra2 |
| Case size | 47 mm | 48 mm | For information |
