QuietComfort 45 is essentially a QC35 II with ambient sound - and USB-C.

Among the most comfortable headphones we know of, Good noise reduction and ambient sound, Neutral sound balance.

The sound is perceived as slim, noise reduction has a bit of a hiss and can also not be turned off without simultaneously activating ambient sound, Not waterproof.

The Bose QuietComfort 45 are great for commute and travel. They have a very comfortable fit, and their over 21-hour battery life should easily last you through long days on the go.

Excellent noise isolation performance., Very comfortable., Over 21 hours of continuous playback time., Good build quality.

Bulky and can fall off your head with more intense movement.

The Bose QuietComfort 45 are a strong successor to the company’s 2019 flagship model, the Bose QuietComfort 35 II, and yet don’t quite have the refinement of last year’s Bose Noise Cancelling Headphones 700. The QC45 are missing a few features like an EQ, adjustable noise reduction and their audio performance isn’t audiophile-quality. They’re comfortable for long periods of time, however, and are easy enough for anyone to use, which is enough to get them a tepid recommendation.

Fantastic noise cancellation; Intuitive control scheme; Lightweight and comfortable; New ambient aware mode;

Missing a few features; Lackluster clarity; Call quality isn’t great; Occasional dropout

Bose’s QC45s are destined to be a big seller for all of the same reasons as their predecessors. They’re extremely comfortable, incredibly easy to use and if they’re not the very best noise-cancellers on the market then there isn’t a lot in it. Throw in great battery life and you can’t really go wrong. Critics argue that Bose’s signature sound lacks a bit of power and dynamism in comparison to some of its rivals, but we think most people will be really happy with the QC45’s sound, no matter what musical genre they throw at them. What is an issue, however, is the lack of features. No in-app EQ, no auto-pausing for speech or wear detection, and no customisation options for ANC or passthrough. They won’t even turn themselves off if you forget to do it. Sony’s XM4s, which are QC45s closest rival, can do all of that and they only cost an additional 30 sheets (and that’s if you can’t pick them up cheaper in deal). Some of this could surely be added in a future firmware update, but we do think that Bose might have gone a bit too far with its back-to-basics approach. This a far more competitive market than the one the QC35s arrived in. Still, if a big feature set doesn’t matter much to you then the QC45s are a very solid pair of headphones that do everything they can do very well, and will probably last you until the Q55s.

ANC still fantastic ; Very durable design; Good all-round sound; Great battery life;

Similarly priced alternatives offer more features for the money; Can’t turn noise-cancelling off without activating Aware Mode;

ANC still fantastic ; Very durable design; Good all-round sound; Great battery life;

Similarly priced alternatives offer more features for the money; Can’t turn noise-cancelling off without activating Aware Mode;

While the QuietComfort 45 are good in many ways, particularly comfort and noise cancelling performance, they are missing a lot of features we'd expect from a pair of flagship headphones.

Light and comfortable; Effective noise cancelling; Solid battery life;

No ANC adjustment; Lacking smart features; Plasticky build;

Excellent noise cancellation ; Good comfort ; Improved battery life;

Rather sparse for features; Lacks musicality of rivals;

The Bose QuietComfort 45 deliver on their promise of quiet and comfort but are light on smart features

Class-leading comfort; Highly effective noise cancellation; Aware mode works well;

ANC can’t be adjusted;

The Bose QuietComfort 45 Bluetooth, Noise Cancelling, over-the-ear headphones replace the ageing QC35 that set standards for weary trav...

Bose quality, Comfortable for long haul, Bose Balanced sound signature that will satisfy existing Bose users

Cannot use while being charged, No App EQ or pre-sets, Only ANC on or Aware on – not adjustable

The QC45 have solid noise cancellation, but they're bettered in sound quality by the class leaders Effective noise cancellation 24-hour battery life Comfortable build Sparsely featured comparatively Beaten for dynamics and timing No aptX Bluetooth