What do reviews say about battery?

Sony rates 12 hours; SoundGuys measured almost 29 hours with the ULT bass boost off.

What do reviews say about waterproof?

It is IP67 dust- and waterproof and, per SoundGuys, is rated to survive a 4-foot drop.

What do reviews say about bass?

The ULT button adds a lot of low end; without it What Hi-Fi? found the sound a bit thin.

Phones & Audio · Speakers · 825 reviews · 3 sources

Sony ULT Field 1

Best for: hikes and travelBudget

A tough, compact speaker with clear sound and long battery. It plays in mono and lacks the midrange weight of the best rivals.

Tracking since Sep 2026

Buy if

You want a drop-proof travel speaker
You like a one-touch bass boost

Skip if

You want stereo from one speaker
You want deep EQ control

How it scores

Sound8.7

Battery7.4

Value6.2

Price

$129–130

You pay for: Mid-price rival to the JBL Flip

Reviewed Sep 2026 · 0 new reviews since · score unchanged

What people love

Most mentioned by reviewers

Sound qualityLoud, clear for its size

PortabilitySmall, strap for bags

Battery lifeLasts all day in use

What people complain about

Most mentioned by reviewers

Basic appOnly a simple 3-band EQ

Mono soundNo stereo from one unit

Thin without boostNeeds ULT mode for bass

Reviewers disagree on

ULT mode adds big bassULT mode cuts battery life

Alternatives

Same price · $129–130

Ask about this product

Sources

Best Buy
What Hi-Fi?
SoundGuys
Reviewed Sep 2026

AI summary of public reviews, not a recommendation.