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The short answer
JBL Xtreme 5 wins this comparison. Choose it if a longer advertised playtime matters. JBL Xtreme 5 advertises up to 28 hours with Playtime Boost, versus up to 14 hours for Ultimate Ears WONDERBOOM 4.
JBL
A larger speaker for outdoor gatherings, with a shoulder strap, phone charging and ambient lighting. IP68 protection suits outdoor use; its 6.39 lb weight is the carrying tradeoff.
Bettr Score
66.1/100
Ultimate Ears
A small poolside speaker that floats, with 360° playback and up to 14 hours of battery life. Outdoor Boost and Podcast Mode cover music outside and spoken audio.
Bettr Score
63.8/100
| JBL Xtreme 5 | Specification | Ultimate Ears WONDERBOOM 4 |
|---|---|---|
$399.95 | Reference price | $99.99 ✓ Winner |
28 hours ✓ Winner | Advertised battery life | 14 hours |
6.39 lb | Weight | 14.82 oz ✓ Winner |
IP68 | Ingress protectionPersonal preference | IP67 |
5 ✓ Winner | Durability tier | 4 |
6.0 | Bluetooth versionPersonal preference | 5.2 |
Yes ✓ Winner | Can charge another device | No |
Yes ✓ Winner | USB audio input | No |
Yes ✓ Winner | Auracast or compatible broadcast pairing | No |
No | Floats in water | Yes ✓ Winner |
No | SpeakerphoneTie | No |
The buying advice
Choose JBL Xtreme 5 if a longer advertised playtime matters. JBL Xtreme 5 advertises up to 28 hours with Playtime Boost, versus up to 14 hours for Ultimate Ears WONDERBOOM 4.
Choose Ultimate Ears WONDERBOOM 4 if you want less weight in your bag. Ultimate Ears WONDERBOOM 4 weighs 14.82 oz versus 6.39 lb — 5.47 lb less to carry.
JBL Xtreme 5 advertises up to 28 hours with Playtime Boost, versus up to 14 hours for Ultimate Ears WONDERBOOM 4. Ultimate Ears WONDERBOOM 4 weighs 14.82 oz versus 6.39 lb — 5.47 lb less to carry. The recorded reference-price difference is $299.96.
JBL Xtreme 5 advertises up to 28 hours with Playtime Boost, versus up to 14 hours for Ultimate Ears WONDERBOOM 4.
Ultimate Ears WONDERBOOM 4 weighs 14.82 oz versus 6.39 lb — 5.47 lb less to carry.
JBL Xtreme 5 can charge another device from its battery; the other speaker’s verified specification says it cannot. Charging a phone uses some of the speaker’s battery.
JBL Xtreme 5 supports USB audio input; the other speaker’s verified specification says it does not. Check source-device compatibility.
People's Pick
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eBay — New
In stock · checked Oct 30, 2026
Price needs rechecking. Confirm at the retailer.
$229.99
Item + shipping · before tax
$229.99 + $0.00 shipping
We may earn a commission when you buy through links marked “Affiliate link.” This does not change your price or our scores. How we earn
eBay — New
In stock · checked Oct 30, 2026
Price needs rechecking. Confirm at the retailer.
$58.49
Item + shipping · before tax
$58.49 + $0.00 shipping
We may earn a commission when you buy through links marked “Affiliate link.” This does not change your price or our scores. How we earn
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