Question 1

Which is better, Fi Series 3 GPS Collar or Whistle GO Explore?

Accepted Answer

Based on our testing, the Fi Series 3 GPS Collar scores higher overall at 9.1/10. The Fi Series 3 GPS Collar scored 9.1/10 and the Whistle GO Explore scored 8.8/10 in our Best GPS Collars for Small Dogs 2026 evaluation.

Question 2

Is the Fi Series 3 GPS Collar worth it over the Whistle GO Explore?

Accepted Answer

The Fi Series 3 GPS Collar scores 9.1/10 while the Whistle GO Explore scores 8.8/10. The Fi Series 3 GPS Collar is our "Best Overall" pick in the Best GPS Collars for Small Dogs 2026 category.

Fi Series 3 GPS Collar vs Whistle GO Explore: Which to Buy?