Smartwatches · Garmin
Garmin Forerunner 55- Display type:
- MIP
- Display size:
- 1.04 in
- Reference price:
- SAR 861
Garmin Forerunner 55 vs Garmin Descent Mk3i: which one suits you?
The two differ in 7 of the specs we have recorded, and the Garmin Forerunner 55 is cheaper by SAR 5,514 (prices checked 5 Nov 2026).
Which one should you choose?
Choose the
Garmin Forerunner 55 if you care about:- Paying less: cheaper by SAR 5,514
- Lower weight: 37 g vs 166 g
Choose the
Garmin Descent Mk3i if you care about:- Larger display size: 1.4 in vs 1.04 in
- Charge less often through the week (25 days vs 14 days)
- Has contactless payment (NFC); the other doesn't
The deciding difference here: display size and battery life and price.
Compares recorded specs; a missing spec does not mean the feature is absent.
Smartwatches · Garmin
Garmin Descent Mk3i- Case size:
- 51 mm
- Display type:
- AMOLED
- Reference price:
- SAR 6,374
Key differences
Display type
MIPAMOLEDDisplay size
1.04 in✓ 1.4 inBattery life
14 days✓ 25 days
Specifications side by side
16 of 16 specs
Scroll the table sideways to see the rest.
| Spec | | |
|---|---|---|
| Reference price | SAR 861 | SAR 6,374 |
| Battery life | 14 days | ✓ 25 days |
| Cellular (LTE/eSIM) | No | — |
| Built-in GPS | Yes | Yes |
| Case size | — | 51 mm |
| Display type | MIP | AMOLED |
| Display size | 1.04 in | ✓ 1.4 in |
| Water resistance | 5 ATM | ✓ 20 ATM |
| Case material | Type: Resin | Titanium |
| Weight | ✓ 37 g | 166 g |
| Blood oxygen (SpO2) | — | Yes |
| Contactless payment (NFC) | No | ✓ Yes |
| ECG | No | No |
| Heart-rate tracking | Yes | Yes |
| Release year | — | 2023 |
| Dimensions | — | 5.1 × 5.1 × 1.64 cm |
| App control (Wi-Fi) | — | Yes |
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Direct comparison questions
What is the difference in battery life between the Garmin Forerunner 55 and the Garmin Descent Mk3i?
Battery life is higher on the Garmin Descent Mk3i: 25 days vs 14 days on the Garmin Forerunner 55. If this spec is your priority, the difference favours it.
What is the difference in built-in GPS between the Garmin Forerunner 55 and the Garmin Descent Mk3i?
No difference here: built-in GPS is Yes on both.
What is the difference in water resistance between the Garmin Forerunner 55 and the Garmin Descent Mk3i?
Water resistance is higher on the Garmin Descent Mk3i: 20 ATM vs 5 ATM on the Garmin Forerunner 55. If this spec is your priority, the difference favours it.
What is the difference in display type between the Garmin Forerunner 55 and the Garmin Descent Mk3i?
Garmin Forerunner 55: MIP; Garmin Descent Mk3i: AMOLED. This is a spec difference, not a verdict that one is better overall.