Loading verified data
Preparing the comparison experience…
The short answer
Ultimate Ears WONDERBOOM 4 wins this comparison. Choose it if you want less weight in your bag. Ultimate Ears WONDERBOOM 4 weighs 14.82 oz versus 7.28 lb — 6.35 lb less to carry. Its recorded reference price is $250.00 lower.
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
Sony
Two bass-boost settings let you dial up the low end for parties. A shoulder strap helps carry its 7.28 lb body; IP67 protection and up to 25 hours of playtime suit outdoor listening.
Bettr Score
61/100
| Ultimate Ears WONDERBOOM 4 | Specification | Sony ULT FIELD 5 |
|---|---|---|
$99.99 ✓ Winner | Reference price | $349.99 |
14 hours | Advertised battery life | 25 hours ✓ Winner |
14.82 oz ✓ Winner | Weight | 7.28 lb |
IP67 | Ingress protectionTie | IP67 |
4 | Durability tierTie | 4 |
5.2 | Bluetooth versionPersonal preference | 5.3 |
No | Can charge another device | Yes ✓ Winner |
No | USB audio inputTie | No |
No | Auracast or compatible broadcast pairingNot enough data | Not stated / not applicable |
Yes | Floats in waterNot enough data | Not stated / not applicable |
No | SpeakerphoneNot enough data | Not stated / not applicable |
The buying advice
Choose Ultimate Ears WONDERBOOM 4 if you want less weight in your bag. Ultimate Ears WONDERBOOM 4 weighs 14.82 oz versus 7.28 lb — 6.35 lb less to carry.
Choose Sony ULT FIELD 5 if a longer advertised playtime matters. Sony ULT FIELD 5 advertises up to 25 hours, versus up to 14 hours for Ultimate Ears WONDERBOOM 4.
Ultimate Ears WONDERBOOM 4 weighs 14.82 oz versus 7.28 lb — 6.35 lb less to carry. Sony ULT FIELD 5 advertises up to 25 hours, versus up to 14 hours for Ultimate Ears WONDERBOOM 4. The recorded reference-price difference is $250.00.
Ultimate Ears WONDERBOOM 4 weighs 14.82 oz versus 7.28 lb — 6.35 lb less to carry.
Sony ULT FIELD 5 advertises up to 25 hours, versus up to 14 hours for Ultimate Ears WONDERBOOM 4.
Sony ULT FIELD 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.
Ultimate Ears WONDERBOOM 4 has the lower recorded reference price: $99.99 versus $349.99, a $250.00 difference.
People's Pick
Loading voting options…
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
eBay — New
In stock · checked Oct 30, 2026
Price needs rechecking. Confirm at the retailer.
$225.00
Item + shipping · before tax
$225.00 + $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
Compare Portable Speakers
