Garmin Instinct 3 vs Samsung Galaxy Watch8 Classic 46mm: which one suits you?

The two differ in 4 of the specs we have recorded, and the Samsung Galaxy Watch8 Classic 46mm is cheaper by SAR 56 (prices checked 7 Nov 2026).

Which one should you choose?

  • Charge less often through the week (18 days vs 1.3 days)
  • Lower weight: 53 g vs 64 g
  • Paying less: cheaper by SAR 56
  • Larger display size: 1.3 in vs 1.2 in · slight difference

The deciding difference here: battery life and weight 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✓ 1.3 in
  • Battery life

    ✓ 18 days1.3 days

Specifications side by side

16 of 16 specs

Scroll the table sideways to see the rest.

Spec
GarminSAR 1,655
Garmin Instinct 3 specs
SamsungSAR 1,599
Samsung Galaxy Watch8 Classic 46mm specs
Reference priceSAR 1,655SAR 1,599
Battery life✓ 18 days1.3 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 Instinct 3 and the Samsung Galaxy Watch8 Classic 46mm?

Battery life is higher on the Garmin Instinct 3: 18 days vs 1.3 days on the Samsung Galaxy Watch8 Classic 46mm. 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 Watch8 Classic 46mm?

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 Classic 46mm?

Garmin Instinct 3: 45 mm; Samsung Galaxy Watch8 Classic 46mm: 46 mm. A higher value is not necessarily better for you.

What is the difference in display type between the Garmin Instinct 3 and the Samsung Galaxy Watch8 Classic 46mm?

No difference here: display type is AMOLED on both.