Garmin Descent Mk3i vs Apple Watch Series 11 (GPS): which one suits you?

The two differ in 5 of the specs we have recorded, and the Apple Watch Series 11 (GPS) is cheaper by SAR 4,705 (prices checked 5 Nov 2026).

Which one should you choose?

  • Charge less often through the week (25 days vs 1 days)
  • Higher water resistance for swimming and showers (20 ATM vs 5 ATM)
  • Paying less: cheaper by SAR 4,705
  • 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.

Key differences

  • Case size

    51 mm46 mm
  • Display type

    AMOLEDOLED
  • Battery life

    ✓ 25 days1 days

Specifications side by side

18 of 18 specs

Scroll the table sideways to see the rest.

Spec
GarminSAR 6,374
Garmin Descent Mk3i specs
AppleSAR 1,669
Apple Watch Series 11 (GPS) specs
Reference priceSAR 6,374SAR 1,669
Battery life✓ 25 days1 days
Cellular (LTE/eSIM)—No
Bluetooth calls—Yes
Built-in GPSYesYes

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Direct comparison questions

What is the difference in battery life between the Garmin Descent Mk3i and the Apple Watch Series 11 (GPS)?

Battery life is higher on the Garmin Descent Mk3i: 25 days vs 1 days on the Apple Watch Series 11 (GPS). 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 Apple Watch Series 11 (GPS)?

No difference here: built-in GPS is Yes on both.

What is the difference in case size between the Garmin Descent Mk3i and the Apple Watch Series 11 (GPS)?

Garmin Descent Mk3i: 51 mm; Apple Watch Series 11 (GPS): 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 Apple Watch Series 11 (GPS)?

Water resistance is higher on the Garmin Descent Mk3i: 20 ATM vs 5 ATM on the Apple Watch Series 11 (GPS). If this spec is your priority, the difference favours it.