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The short answer
Marshall Middleton II wins this comparison. Choose it if a longer advertised playtime matters. Marshall Middleton II advertises up to 30 hours, versus up to 25 hours for Sony ULT FIELD 5. Its recorded reference price is $20.00 lower.
Marshall
Built for long weekends, with 30+ hours of playtime, 360° sound and phone charging. Bass and treble controls let you adjust the sound; expect 3.97 lb to carry.
Bettr Score
66.5/100
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
| Marshall Middleton II | Specification | Sony ULT FIELD 5 |
|---|---|---|
$329.99 ✓ Winner | Reference price | $349.99 |
30 hours ✓ Winner | Advertised battery life | 25 hours |
3.97 lb ✓ Winner | Weight | 7.28 lb |
IP67 | Ingress protectionTie | IP67 |
4 | Durability tierTie | 4 |
5.3 | Bluetooth versionTie | 5.3 |
Yes | Can charge another deviceTie | Yes |
Not stated / not applicable | USB audio inputNot enough data | No |
Yes | Auracast or compatible broadcast pairingNot enough data | Not stated / not applicable |
Not stated / not applicable | Floats in waterNot enough data | Not stated / not applicable |
Yes | SpeakerphoneNot enough data | Not stated / not applicable |
The buying advice
Choose Marshall Middleton II if a longer advertised playtime matters. Marshall Middleton II advertises up to 30 hours, versus up to 25 hours for Sony ULT FIELD 5.
The verified differences do not give Sony ULT FIELD 5 a clear advantage in this pair. Check its current offer and any requirements outside this comparison before choosing it.
Marshall Middleton II advertises up to 30 hours, versus up to 25 hours for Sony ULT FIELD 5.
Marshall Middleton II advertises up to 30 hours, versus up to 25 hours for Sony ULT FIELD 5.
Marshall Middleton II weighs 3.97 lb versus 7.28 lb — 3.31 lb less to carry.
Marshall Middleton II has the lower recorded reference price: $329.99 versus $349.99, a $20.00 difference.
People's Pick
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eBay — New
In stock · checked Oct 30, 2026
Price needs rechecking. Confirm at the retailer.
$299.00
Item price · shipping unknown
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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
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