Smartwatches · Garmin
Garmin Instinct 3- Case size:
- 45 mm
- Display type:
- AMOLED
- Reference price:
- SAR 1,655
Garmin Instinct 3 vs Samsung Galaxy Watch8 40mm: which one suits you?
The two differ in 4 of the specs we have recorded, and the Samsung Galaxy Watch8 40mm is cheaper by SAR 785 (prices checked 5 Nov 2026).
Which one should you choose?
Choose the
Garmin Instinct 3 if you care about:- Higher water resistance for swimming and showers (10 ATM vs 5 ATM)
- Paying less: cheaper by SAR 785
- Larger display size: 1.34 in vs 1.2 in · slight difference
The deciding difference here: water resistance and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Smartwatches · Samsung
Samsung Galaxy Watch8 40mm- Case size:
- 40 mm
- Display type:
- Super AMOLED
- Reference price:
- SAR 870
Key differences
Case size
45 mm40 mmDisplay type
AMOLEDSuper AMOLEDDisplay size
1.2 in✓ 1.34 in
Specifications side by side
17 of 17 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 1,655 | SAR 870 |
| Battery life | 18 days | — |
| Cellular (LTE/eSIM) | — | No |
| Phone compatibility | — | Android |
| Built-in GPS | Yes | Yes |
| Case size | 45 mm | 40 mm |
| Display type | AMOLED | Super AMOLED |
| Display size | 1.2 in | ✓ 1.34 in |
| Water resistance | ✓ 10 ATM | 5 ATM |
| Weight | 53 g | — |
| ECG | — | Yes |
| Heart-rate tracking | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Contactless payment (NFC) | Yes | Yes |
| Release year | 2025 | — |
| Dimensions | 4.5 × 4.5 × 1.49 cm | — |
| dust resistance rating | — | IP68 |
| App control (Wi-Fi) | Yes | Yes |
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Similar comparisons
Direct comparison questions
What is the difference in built-in GPS between the Garmin Instinct 3 and the Samsung Galaxy Watch8 40mm?
No difference here: built-in GPS is Yes on both.
What is the difference in case size between the Garmin Instinct 3 and the Samsung Galaxy Watch8 40mm?
Garmin Instinct 3: 45 mm; Samsung Galaxy Watch8 40mm: 40 mm. A higher value is not necessarily better for you.
What is the difference in water resistance between the Garmin Instinct 3 and the Samsung Galaxy Watch8 40mm?
Water resistance is higher on the Garmin Instinct 3: 10 ATM vs 5 ATM on the Samsung Galaxy Watch8 40mm. If this spec is your priority, the difference favours it.
What is the difference in display type between the Garmin Instinct 3 and the Samsung Galaxy Watch8 40mm?
Garmin Instinct 3: AMOLED; Samsung Galaxy Watch8 40mm: Super AMOLED. This is a spec difference, not a verdict that one is better overall.