Garmin Instinct 3 vs Samsung Galaxy Watch 8 Classic: which one suits you?

The two differ in 5 of the specs we have recorded, and the Samsung Galaxy Watch 8 Classic is cheaper by SAR 34 (prices checked 4 Nov 2026).

Which one should you choose?

  • Charge less often through the week (18 days vs 1.3 days)
  • Higher water resistance for swimming and showers (10 ATM vs 5 ATM)
  • Paying less: cheaper by SAR 34
  • Larger display size: 1.35 in vs 1.2 in · slight difference

The deciding difference here: battery life and water resistance and price.

Compares recorded specs; a missing spec does not mean the feature is absent.

Key differences

  • Case size

    45 mm46 mm
  • Display size

    1.2 in✓ 1.35 in
  • Battery life

    ✓ 18 days1.3 days

Specifications side by side

15 of 15 specs

Scroll the table sideways to see the rest.

Spec
GarminSAR 1,655
Garmin Instinct 3 specs
SamsungSAR 1,621
Samsung Galaxy Watch 8 Classic specs
Reference priceSAR 1,655SAR 1,621
Battery life✓ 18 days1.3 days
Phone compatibility—Android
Built-in GPSYesYes

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Similar comparisons

Direct comparison questions

What is the difference in battery life between the Garmin Instinct 3 and the Samsung Galaxy Watch 8 Classic?

Battery life is higher on the Garmin Instinct 3: 18 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 Instinct 3 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 Instinct 3 and the Samsung Galaxy Watch 8 Classic?

Garmin Instinct 3: 45 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 Instinct 3 and the Samsung Galaxy Watch 8 Classic?

Water resistance is higher on the Garmin Instinct 3: 10 ATM vs 5 ATM on the Samsung Galaxy Watch 8 Classic. If this spec is your priority, the difference favours it.