HeadphoneOverreview

Sony ULT WEAR

Sony's bass-first noise-cancelling headphone — comfortable, quiet and tuned for maximum low end, which a majority enjoy and a large minority find lopsided, and whose hinge has a service notice.

26 sourcesUpdated
$145Typical US price

Score aggregates reviewer opinions across topics.

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Sony ULT WEAR

The short version

What to know.

A comfortable, mid-priced wireless over-ear with strong noise cancelling and an intentionally bass-heavy sound. Three measurement rigs agree on the shape: about 10 dB more bass than a neutral reference such as Sennheiser's HD 600, and an upper midrange about 8–10 dB lower — before the ULT button adds more. Reviewers widely agree it is comfortable for hours (if warm under its pleather pads), that its noise cancelling is very good for the price, that the strongest ULT setting is too much, and that fine detail is not its strength. Beyond that, opinion splits almost down the middle. Roughly half call the stock sound punchy, clear and fun; the other half call it boomy and lopsided, with swamped mids and a dull, uneven top end. The plastic build reads as solid to most reviewers but cheap and fragile to owners, many of whom report cracked hinges, a fault Sony has acknowledged for some serial numbers. Most sources call it good value at its frequent sale prices; a few think the cheaper WH-CH720N sounds better.

About this product

Sony's bass-focused wireless noise-cancelling over-ear from April 2024, model WH-ULT900N — the successor to the WH-XB910N, priced between the WH-CH720N and the WH-1000XM5. Not Sony's ULT FIELD or ULT POWER SOUND speakers, nor the WF-ULT earbuds.

The ULT WEAR (model WH-ULT900N) arrived in April 2024 as the headphone in Sony's ULT line of bass-heavy speakers and earbuds, replacing the WH-XB910N and sitting between the budget WH-CH720N and the flagship WH-1000XM5. It borrows the flagship look and Sony's Integrated Processor V1 for noise cancelling, adds LDAC, multipoint, wear detection and a folding frame with a hard case, and puts a dedicated ULT button on the left cup that steps through two extra levels of bass boost.

It launched at $199.99 and now usually sells well below its list price — $145 at Amazon as of this writing. The reviews agree that it is comfortable, that it blocks noise well and that its default sound is built around the low end. They split, sharply, on whether that sound is fun or lopsided, and a growing record of owners' cracked hinges — enough for Sony to post a free-repair notice — has turned its build into a second argument.

A good fit for

  • Bass lovers who listen mostly to hip-hop, EDM and pop and want the low end front and centre
  • Commuters and travellers who want strong noise cancelling and all-day comfort below flagship prices
  • Buyers who can get it on sale, well under its list price
  • Android listeners who want LDAC and multipoint in a folding headphone with a case

Think twice if

  • You want a balanced or neutral sound, or listen mostly to rock, metal, jazz or classical
  • Detail and separation matter more to you than bass weight
  • You're hard on headphones or fold them often — the hinge is a known weak point
  • Your ears run hot — the pleather pads trap heat
  • You want the very best noise cancelling for planes and trains — Sony's and Bose's flagships still beat it on low rumble

The reviewer consensus

Agreement &
disagreement.

6 / 9topics divide opinion
3 Mostly agree6 Divided opinions

Common ground6

  • Comfortable for long sessions, with roomy, well-padded pads and moderate clamp — though the pleather gets warm.
  • Very good noise cancelling for the price, near Sony's older flagships; the XM5 and Bose still do better on low rumble.
  • Deliberately bass-heavy: three rigs measure about 10 dB more bass than a neutral reference and a recessed upper midrange.

Points of contention6

  • Tonality: 'warm, enjoyable and decent out of the box' vs 'lopsided, with the bass swamping everything' — the same measured curve.
  • Bass: 'deep, punchy and fun' vs 'boomy, loose and overbearing' — a near-even split that tracks genre: hip-hop and EDM fans enjoy it, rock and metal listeners don't.
  • Mids: 'clear vocals' vs 'recessed and swamped' — the 2–5 kHz region measures 6–9 dB below target.

A closer listen.

9 topics · 6 divided
Left: criticalRight: positiveTighter lines: more agreement

Tonality

No overall leanDivided opinions
Reviewer sentiment19 supporting sources
CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Sources split: everyone agrees the default tuning is built around the bass, with a recessed upper midrange, but not on whether it works. A majority find it a warm, enjoyable consumer sound with clear vocals; a large minority — including the two highest-weighted labs and the harshest critics — call it lopsided, with the low end swamping everything above it.

Measured

Three rigs agree closely with the ULT button off. On RTINGS' B&K 5128 the response sits 6.5–8.6 dB above RTINGS' own target from 20 to 100 Hz, about 3 dB below it at 2 kHz and 6.7–8 dB below at 3–4 kHz, with a 3.5 dB bump at 8 kHz. Against an HD 600 measured on the same rig it carries about 10.5 dB more at 100 Hz and 8–10 dB less at 3–4 kHz on RTINGS', Kuulokenurkka's and SAI's rigs alike. Against the WH-1000XM5 on RTINGS' rig it has about 4 dB more bass and 8–9 dB less at 3–4 kHz; against the WH-CH720N, about 2.5 dB more bass. RTINGS calls it more bass-heavy than the XM5 with a de-emphasized treble. Turning noise cancelling off barely changes the curve (under 2 dB below 10 kHz, per Kuulokenurkka), but used passively on the cable it loses another 5–7 dB at 2–3 kHz.

Where it splits
A warm, enjoyable, bass-forward consumer sound — decent out of the box.60%

“Out of the box, the ULT Wear has a perfectly decent sound.”

TechRadar (James Davidson)
Lopsided — the bass dominates and the rest of the range gets lost.40%

“Default sound profile can weaken intelligibility of voices in busy mixes.”

RTINGS
Link to this topic

The hardware

Specifications.

Checked

Design

Type
Closed-back over-ear
Drivers
1 × 40 mm dynamic (dome type)
Microphone
Built-in

Electrical

Impedance
314 Ω
Sensitivity
110 dB/mW≈ 115 dB/V
Frequency response
5 Hz – 20 kHz

Connection

Cable
Detachable, single-entry, 1.2 m
Connector
3.5 mm
Plugs supplied
3.5 mm
Bluetooth
Bluetooth 5.2SBC, AAC, LDAC
Noise cancelling
Yes
Battery
30 h
Wired input
Yes

Physical

Weight
255 g

Impedance and sensitivity are Sony's figures with the headphones switched on; switched off (passive) Sony lists 32 Ω and 100 dB/mW. Manufacturer-published figures, not measurements · from sony.co.uk, sony.com.

Follow the evidence

Sources 26

1–6 of 26 sources

Read with context

Limitations & method.

As of

What to keep in mind 6

  1. This is a read of where opinion lands as of November 2026, for a headphone that first shipped in April 2024 — most of the professional reviews date from its launch, while the owner reports run right up to now.

  2. The sound is tuned for bass by design, so whether you love it or hate it depends heavily on what you listen to; the ULT button and the app's EQ change it a lot.

Where to buy Product & retailer links

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