Bose
SoundLink Flex
A compact, rugged speaker with balanced sound, dependable battery life, and PositionIQ orientation sensing.
Bettr Than score
22/100
Last checked
$129.00
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Winner
Ultimate Ears
WONDERBOOM 4
A small, buoyant outdoor speaker with 360-degree sound, simple controls, and a notably low weight.
Bettr Than score
78/100
Last checked
$69.99
Side-by-side specifications
| SoundLink Flex | Specification | WONDERBOOM 4 |
|---|---|---|
Up to 12 hr | Battery | Up to 14 hr |
IP67 | Water & dust | IP67 |
1.3 lb | Weight | 0.93 lb |
Yes | USB-C | Yes |
Yes | Floats | Yes |
$129.00 | Checked price | $69.99 |
The verdict
Ultimate Ears WONDERBOOM 4 wins this matchup.
It earns the stronger overall score across price, battery life, water and dust protection, weight, USB-C support, and flotation. Choose Bose SoundLink Flex Portable Speaker (2nd Gen) instead when its particular strengths fit your priorities better.
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Sources & price note
Specs come from manufacturer product and support pages. Prices are snapshots and can change by color, seller, or promotion.