Samsung Galaxy Watch 5 vs Amazfit T-Rex 3
4 recorded spec differences. Their recorded Amazon.sa prices are close (SAR 1,078 vs SAR 1,072, checked 3 Nov 2026).
Specifications side by side
| Spec | Samsung Galaxy Watch 5 | Amazfit T-Rex 3 |
|---|---|---|
| Phone, battery and calls | ||
| Battery life | — | 27 days |
| Cellular (LTE/eSIM) | No | Yes |
| Built-in GPS | Yes | Yes |
| Size, screen and durability | ||
| Case size | 44 mm | 48 mm |
| Display type | — | AMOLED |
| Display size | 1.4 in | 1.5 in |
| Water resistance | — | 10 ATM |
| Weight | 33.5 g | 68.3 g |
| Health and payments | ||
| ECG | — | No |
| Heart-rate tracking | — | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Contactless payment (NFC) | — | Yes |
| Other specs | ||
| Release year | — | 2024 |
| Dimensions | 4.3 x 4.4 x 1 cm | — |
| dust resistance rating | — | IP68 |
| App control (Wi-Fi) | — | Yes |
Highlighted rows differ. Facts come from each Amazon.sa listing. As an Amazon Associate we earn from qualifying purchases. Buying through our links costs you nothing extra.