Head to head

Ultimate Ears Wonderboom 4 vs Bose SoundLink Flex

Ultimate Ears

Ultimate Ears Wonderboom 4

Best small speaker

Sound 74

Build 90

Value 90

Features 62

Type	Portable 360
Water	IP67
Battery	~14 hr
Charging	USB-C

PRICE $

Check price on Amazon →

VS

Bose

Bose SoundLink Flex

Best sound for size

Sound 86

Build 84

Value 84

Features 70

Battery	~12 hr
Water/Dust	IP67 (floats)
Mic	Yes
Weight	~1.3 lb

PRICE $$

Check price on Amazon →

Our verdictWonderboom 4 for the price, the float and 360 sound; SoundLink Flex for noticeably better sound from a similar size.

← More Bluetooth Speakers