Garmin Instinct 3 vs Samsung Galaxy Ultra: which one suits you?

The two differ in 4 of the specs we have recorded (prices checked 5 Nov 2026).

Which one should you choose?

  • Charge less often through the week (18 days vs 0.5 days)
  • Lower weight: 53 g vs 500 g
  • Larger display size: 1.5 in vs 1.2 in

The deciding difference here: display size and battery life.

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

Key differences

  • Case size

    45 mm47 mm
  • Display size

    1.2 in✓ 1.5 in
  • Battery life

    ✓ 18 days0.5 days

Specifications side by side

17 of 17 specs

Scroll the table sideways to see the rest.

Spec
GarminSAR 1,655
Garmin Instinct 3 specs
SamsungSAR 1,687
Samsung Galaxy Ultra specs
Reference priceSAR 1,655SAR 1,687
Battery life✓ 18 days0.5 days
Cellular (LTE/eSIM)—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 Ultra?

Battery life is higher on the Garmin Instinct 3: 18 days vs 0.5 days on the Samsung Galaxy Ultra. 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 Ultra?

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 Ultra?

Garmin Instinct 3: 45 mm; Samsung Galaxy Ultra: 47 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 Ultra?

No difference here: water resistance is 10 ATM on both.