Bose QuietComfort Ultra 2nd Gen Review: Silence, Benchmarked

"Quieter barely exists" is the test's one-line summary, and the ranking backs it up: the second-generation QuietComfort Ultra sits 2nd of 57 in the August 2026 over-ear table at "very good" (1.2), up from 2nd of 43 at its October 2025 launch. It is the noise-cancelling benchmark of the field — with a narrow soundstage and a stiff price as the honest counterweights.

Bose convinces here on every count. The generously padded cups isolate well before any electronics engage; switch the cancelling on and it becomes, in the test's words, really very quiet. Uniform fan hum, the deep rumble of a jet engine and its high-frequency whistle were all filtered out effortlessly in the standardised scenarios — the full trio that trips up most rivals, handled at once.

The control story is unusually complete too. The companion app regulates the cancelling intensity freely — where Sony's XM6 runs its ANC at a fixed strength — and adds an adaptive "Active Sense" mode, an "Aware" transparency mode and a dedicated wind-noise reduction option for outdoor listening.

The tuning is wonderfully even-handed: low, mid and high frequencies all arrive present and clean, and anyone wanting more bass or a different flavour is well served by the equaliser in Bose's app. The one genuine criticism is the soundstage, which comes across somewhat narrow — spatial details are harder to pick out than on the airiest rivals. The panel was frank about the consequence: the cheaper Bowers & Wilkins Px7 S3 pleased them considerably more on pure sound. As an all-rounder score it still lands high; as a hi-fi purchase alone, it isn't the field's best argument.

Measured playback reached 61:36 hours without cancelling — but ANC is what this headphone is for, and with it engaged the figure falls to 39:10 hours. That is very solid, while sitting well behind the endurance champions: the Sennheiser Momentum 4 runs 53:08 hours with ANC, the Sony XM6 58:33. Fast charging partly compensates — 15 minutes on the plug restores about 7:22 hours (4:44 with ANC) — and a full charge takes around 2:11 hours.

The plain housing is mostly plastic — cleanly finished without feeling luxurious — and comfort is where the money went: well-judged clamping pressure and pleasant cushions earned a "very good" (1.4) fit score at a light 263 g. It folds down very small and travels safely in the supplied hardcase.

There is no power button at all: the headphones switch on automatically when donned. Volume and quick actions run through a touch strip that stands slightly proud of the housing, making it easy to find by feel. Beyond a tactile Bluetooth pairing key, everything else lives on a single multifunction button — press for play/pause, double-press to skip, hold to cycle ANC modes — which the testers found somewhat overloaded; one more button would have served it better.

Bluetooth 5.4 with a range rated "very good" (1.0) — stable through several walls — plus multipoint for two simultaneous devices and aptX support. Wired listening is covered both ways, via 3.5 mm jack and USB-C audio, and keeps working with the battery empty — a cleaner sweep than the Sony XM6 manages, which drops aptX and USB-C audio entirely.

The price verdict reads "expensive" (4.0), softened from 4.4 at launch as street prices eased. At our 1 August 2026 check, Amazon UK's exact-model listing carried the QuietComfort Ultra 2nd Gen new at £379.00 — above the Sony XM6's £349 and nearly double the Sennheiser Momentum 4's £199.99, the two models flanking it in our best over-ear headphones guide.

If silence is the point, this is the pick: the strongest, most controllable noise cancelling in a 57-model field, wrapped in genuine comfort, complete connectivity and a tiny folded footprint. The narrow stage keeps it from being the sound-first choice at the price, ANC endurance trails the stamina champions, and the single overloaded button is a daily niggle. Second of 57 is exactly where it belongs — beaten only where quiet isn't the question.

Bose QuietComfort Ultra 2nd Gen or Sony WH-1000XM6? Bose ranks one place higher (2nd of 57 against 3rd) and wins on cancelling control — freely adjustable intensity against Sony's fixed strength — plus aptX and USB-C audio. Sony counters with far longer ANC runtime (58:33 against 39:10 hours) and a £349 price against £379. Our full Sony WH-1000XM6 review covers the other side.

Is the QuietComfort Ultra 2nd Gen the best noise-cancelling headphone? In this tested field, yes — it holds the best-noise-cancelling slot in our over-ear guide, with fan hum, jet rumble and high whistle all filtered effortlessly in the standardised scenarios.

Can you use the QuietComfort Ultra 2nd Gen wired? Yes, more completely than most: 3.5 mm jack and USB-C audio both work, including with the battery flat.

How long does the battery last? Measured 39:10 hours with cancelling active and 61:36 hours without; a 15-minute charge restores about 7:22 hours, and a full charge takes around 2:11 hours.