Smartwatches · Garmin
Garmin Descent Mk3i- Case size:
- 51 mm
- Display type:
- AMOLED
- Reference price:
- SAR 6,374
Garmin Descent Mk3i vs Samsung Galaxy Watch 8 Classic: which one suits you?
The two differ in 6 of the specs we have recorded, and the Samsung Galaxy Watch 8 Classic is cheaper by SAR 4,753 (prices checked 4 Nov 2026).
Which one should you choose?
Choose the
Garmin Descent Mk3i if you care about:- Charge less often through the week (25 days vs 1.3 days)
- Higher water resistance for swimming and showers (20 ATM vs 5 ATM)
- Paying less: cheaper by SAR 4,753
- Has ECG; the other doesn't
The deciding difference here: battery life and ECG and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Smartwatches · Samsung
Samsung Galaxy Watch 8 Classic- Case size:
- 46 mm
- Display type:
- AMOLED
- Reference price:
- SAR 1,621
Key differences
Case size
51 mm46 mmDisplay size
1.4 in1.35 inBattery life
✓ 25 days1.3 days
Specifications side by side
16 of 16 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 6,374 | SAR 1,621 |
| Battery life | ✓ 25 days | 1.3 days |
| Phone compatibility | — | Android |
| Built-in GPS | Yes | Yes |
| Case size | 51 mm | 46 mm |
| Display size | 1.4 in | 1.35 in |
| Water resistance | ✓ 20 ATM | 5 ATM |
| Case material | Titanium | — |
| Weight | 166 g | — |
| Display type | AMOLED | AMOLED |
| 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 | 15.2×10.2×10.2 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
Direct comparison questions
What is the difference in battery life between the Garmin Descent Mk3i and the Samsung Galaxy Watch 8 Classic?
Battery life is higher on the Garmin Descent Mk3i: 25 days vs 1.3 days on the Samsung Galaxy Watch 8 Classic. If this spec is your priority, the difference favours it.
What is the difference in built-in GPS between the Garmin Descent Mk3i and the Samsung Galaxy Watch 8 Classic?
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 8 Classic?
Garmin Descent Mk3i: 51 mm; Samsung Galaxy Watch 8 Classic: 46 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 8 Classic?
Water resistance is higher on the Garmin Descent Mk3i: 20 ATM vs 5 ATM on the Samsung Galaxy Watch 8 Classic. If this spec is your priority, the difference favours it.