Question 1

Which is better, JBL Xtreme 3 Portable Bluetooth Speaker or Bose SoundLink Flex Bluetooth Speaker?

Accepted Answer

Based on our testing, the JBL Xtreme 3 Portable Bluetooth Speaker scores higher overall at 9.6/10. The JBL Xtreme 3 Portable Bluetooth Speaker scored 9.6/10 and the Bose SoundLink Flex Bluetooth Speaker scored 9.5/10 in our Best Outdoor Bluetooth Speakers (2026): Waterproof Picks Tested evaluation.

Question 2

Is the JBL Xtreme 3 Portable Bluetooth Speaker worth it over the Bose SoundLink Flex Bluetooth Speaker?

Accepted Answer

The JBL Xtreme 3 Portable Bluetooth Speaker scores 9.6/10 while the Bose SoundLink Flex Bluetooth Speaker scores 9.5/10. The JBL Xtreme 3 Portable Bluetooth Speaker is our "Best Overall Outdoor Speaker" pick in the Best Outdoor Bluetooth Speakers (2026): Waterproof Picks Tested category.

JBL Xtreme 3 Portable Bluetooth Speaker vs Bose SoundLink Flex Bluetooth Speaker: Which to Buy?