Don't fix what ain't broke....

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;

Love these headphones. Every feature brilliant. I recharge for a few minutes (when I'm in the middle of a podcast and just have to listen to the end) and it's almost 100% charged. Amazing. Sound is clear and rousing.

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.

• Claimed battery life: 24 hours • Quiet Mark noise-canceling rating: 3 stars • Adaptive active noise cancellation: Yes Bose has a reputation when it comes to producing crystal clear sound that consumers absolutely love, and these wireless headphones aced our tests in the over-ear category.

Excellent sound quality, Comfortable, Multi-pairing, Quick charging, Great Bluetooth connectivity (Bluetooth 5.1)

Not compatible with Google Assistant or Alexa, Battery life could be longer, No touch controls

Excellent noise cancellation ; Good comfort ; Improved battery life;

Rather sparse for features; Lacks musicality of rivals;

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.

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;

I may be a little bit unusual in having both these and the Sony XM4s, but to me these feel a bit lacking in terms of sound quality - nothing feels quite as 'alive' and punchy as it does with the XM4s. On the other hand, the sound isn't bad, and the noise cancelling is excellent.