Smartwatches · Garmin
Garmin Descent Mk3i- Case size:
- 51 mm
- Display type:
- AMOLED
- Reference price:
- SAR 6,374
Garmin Descent Mk3i vs Samsung Galaxy Watch Ultra (2025): which one suits you?
The two differ in 3 of the specs we have recorded, and the Samsung Galaxy Watch Ultra (2025) is cheaper by SAR 4,622 (prices checked 6 Nov 2026).
Which one should you choose?
Choose the
Garmin Descent Mk3i if you care about:- Higher water resistance for swimming and showers (20 ATM vs 10 ATM)
- Paying less: cheaper by SAR 4,622
- Has ECG; the other doesn't
The deciding difference here: ECG and water resistance and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Smartwatches · Samsung
Samsung Galaxy Watch Ultra (2025)- Case size:
- 47 mm
- Display type:
- AMOLED
- Reference price:
- SAR 1,752
Key differences
Case size
51 mm47 mmECG
No✓ YesWater resistance
✓ 20 ATM10 ATM
Specifications side by side
17 of 17 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 6,374 | SAR 1,752 |
| Battery life | 25 days | — |
| Cellular (LTE/eSIM) | — | Yes |
| Phone compatibility | — | Android |
| Built-in GPS | Yes | Yes |
| Case size | 51 mm | 47 mm |
| Display size | 1.4 in | — |
| Water resistance | ✓ 20 ATM | 10 ATM |
| Weight | 166 g | — |
| Display type | AMOLED | AMOLED |
| Case material | Titanium | Titanium |
| ECG | No | ✓ Yes |
| Blood oxygen (SpO2) | Yes | — |
| Heart-rate tracking | Yes | Yes |
| Contactless payment (NFC) | Yes | Yes |
| Release year | 2023 | — |
| Dimensions | 5.1 × 5.1 × 1.64 cm | — |
| App control (Wi-Fi) | Yes | Yes |
Facts come from each Amazon.sa listing. As an Amazon Associate we earn from qualifying purchases. Buying through our links costs you nothing extra.
Before you buy
Prices, availability, shipping and returns can change. Check the final details on Amazon.sa before you buy.
Similar comparisons
Polar Vantage M3 vs Samsung Galaxy Watch Ultra (2025)
Garmin Descent Mk3i vs Garmin Fenix 8
Garmin Descent Mk3i vs Garmin Fenix 9 Pro
Garmin Forerunner 570 vs Samsung Galaxy Watch Ultra (2025)
Garmin Forerunner 265 vs Samsung Galaxy Watch Ultra (2025)
Garmin Instinct 3 Tactical vs Samsung Galaxy Watch Ultra (2025)
Direct comparison questions
What is the difference in built-in GPS between the Garmin Descent Mk3i and the Samsung Galaxy Watch Ultra (2025)?
No difference here: built-in GPS is Yes on both.
What is the difference in case size between the Garmin Descent Mk3i and the Samsung Galaxy Watch Ultra (2025)?
Garmin Descent Mk3i: 51 mm; Samsung Galaxy Watch Ultra (2025): 47 mm. A higher value is not necessarily better for you.
What is the difference in water resistance between the Garmin Descent Mk3i and the Samsung Galaxy Watch Ultra (2025)?
Water resistance is higher on the Garmin Descent Mk3i: 20 ATM vs 10 ATM on the Samsung Galaxy Watch Ultra (2025). If this spec is your priority, the difference favours it.
What is the difference in display type between the Garmin Descent Mk3i and the Samsung Galaxy Watch Ultra (2025)?
No difference here: display type is AMOLED on both.