I tested the Bose QuietComfort Ultra Earbuds 2nd Gen thinking they couldn't better the originals for ANC – but wow, was I wrong

Bose QuietComfort Ultra Earbuds 2nd Gen: Two-minute review

I've been wanting Bose to lighten up a bit for years where its earbuds are concerned and with the Bose QuietComfort Ultra Earbuds 2nd Gen, the usually oh-so-serious audio heavyweight got the memo. Would you look at that 'Deep Plum' hue?

When setting up the Bose QuietComfort Ultra Earbuds 2nd Gen (try saying that three times in quick succession after 5:30pm) you're prompted to rename them if you'd like – and someone on Bose's payroll clearly had a jolly old time coming up with cheeky suggestions such as "Cherry Wine", "Burgundy Buds" or "Sonic Sangria". You love to see it. (They're also available in black and white, naturally.)

But that's far from the end of the fun times where this particular Bose vintage is concerned. These buds are the most sonically exuberant listen I've heard to date in this type of form factor, a fact only enhanced by their rock-solid, near-impenetrable active noise cancellation (ANC), which you can usefully tweak on a slider when creating Bose's hugely successful 'Modes' (more on that later).

This time around, you also get wireless charging from the box and multi-point connectivity that works seamlessly, something the original Ultras bizarrely lacked on their release. Some of the best earbuds on the market then? Oh absolutely.

But not everyone will be wholly happy with the update. If you were expecting a complete design overhaul from the inaugural late-2023 Ultras (which were not too dissimilar in design to the September 2022-issue QuietComfort Earbuds 2), you're still not getting that.

My colleague in Australia, Sharmishta Sarkar has been waiting for a rework there for some time now – and to be clear, she means an alternative to wedging the buds in with stability bands because these silicone accessories eventually wear out (even though a total of three, in different sizes and separate from the interchangeable tips, has been provided in the box). Anyone who wanted Bose to take its smaller QuietComfort Earbuds 2024 design and Ultra-fy it for 2025 (are you out there?) will also be disappointed.

I am not disappointed. The ovoid nozzle actually slips happily into my bijou ear canal and serves up exciting, expansive audio that nixes more low-level constant noise than anything else I've tested on the market. And with the (admittedly incremental, but still welcome) upgrades Bose has given me in the QuietComfort Earbuds Ultra 2nd Gen, I'll be thoroughly recommending them to anyone who'll let me for some time.

Bose QuietComfort Ultra Earbuds 2nd Gen review: Price and release date

• Released on June 12, 2025
• Priced $299 / £299 / AU$450
• Available in black, off-white and 'deep plum' (pictured)

Key things to note here: they're newe,r and while they're not cheaper, they're also not more expensive than what's gone before them. Bose has generously carried over the original Ultra Earbuds' 2023 launch price (which was the same as the prices listed above) to 2025 and ignored inflation, although you can now find the older set for nearer $220 / £199 / AU$399.

Why mention this? Because if the deep plum limited colorway and wireless charging as standard don't matter to you, you might think the smart money goes on the older set. I actually disagree, as you'll see, but there's definitely a case to be made for it…

In terms of direct competition, your rivals at the level are of course AirPods Pro 2 which can be yours for around $50 / £70 less than the Bose (though often drop to being much cheaper), the Bowers & Wilkins Pi8 (which are pricier, at $399 / £349 / AU$599), or the Technics EAH-AZ100 which are virtually the same price as the Bose depending on where you live, at $299 / £259 / AU$478.

Bose QuietComfort Ultra Earbuds 2nd Gen review: Specs

Bose QuietComfort Ultra Earbuds 2nd Gen review: Features

• Up to 24 hours of battery (up to 6 from the buds)
• Excellent and useful Modes options
• Option to switch off on-ear controls

Via a few clicks within the Bose companion app, Bose has added (drumroll)… the ability to switch off on-ear controls with this iteration. Why you'd want to switch off the capacity to scroll through your listening modes (you can customize the long-press function too, if you'd rather use it to switch source devices manually, access your voice assistant or deploy a hotline to Spotify), stroke the stem to alter volume or tap to pause and play your tracks is strange to me – but if you want to, you can now. And you couldn't before.

Now: Modes. It's not new, but I was a huge fan of the feature in the original Ultra Earbuds and I still love it now. What are these Modes? Essentially, you can combine however much of Bose's excellent ANC or ambient passthrough you want on a slider – although take note, the solo slider starts at full transparency or awareness and goes through to maximum ANC – along with Immersive Audio.

You can pick whether you want Immersive Audio on or off, 'Still' (so you can move your head around your source device and feel the different sounds being piped into each ear accordingly) or in 'Motion' (which means that whichever way you turn your head, the three-dimensional immersive soundstage will not change).

There are three presets from the box: Quiet (max ANC, Immersive Audio off); Aware (max Ambient passthrough, Immersive Audio off); and Immersion (max ANC, Immersive Audio set to 'Motion'). I created a fourth preset: Work. Here, I set ANC to 75% and select 'Still' under Immersive Audio. This way, all but the most important noises are gone at my desk, and said desk is my fixed audio source – so I'm less tempted to leave it!

The thing is, if these profiles didn't do exactly what they promised to do, you'd say they were surplus to requirements. But because they genuinely enhance the listening experience better than any similar solutions currently offered by rivals (for me, it's better than JBL Spatial Sound, for example), they're emphatically worth using and celebrating.

On the ANC, Bose says there are new AI algorithms included this time, for better filtering of sudden noise spikes via its ActiveSense system. What I can tell you is that I've never heard more effective ANC in a set of noise-cancelling earbuds. Better than the outgoing model? Yes. I even missed my own doorbell while testing (which meant an extra journey to collect my next review product) – and my music was not loud.

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It's not all great news: your Bluetooth version is still 5.3 (when 6.0 now exists) and although you get Snapdragon Sound again, which means aptX Adaptive is on the menu as well as aptX Lossless, you've still got to be using an Android non-Samsung device with a compatible Qualcomm chip (see our aptX explainer for more on that tricky business).

None of that is Bose's fault, of course, but it is a roundabout way of saying that LDAC would've been a great addition this time around – especially when cheaper options such as the Nothing Ear (a) proudly offer it.

Also, the three-tab EQ graph is relatively basic compared to some flagship options and there are no listening tests to augment certain frequencies to create your own 'Personi-Fi' type profile – which is a feature of the JBL Live Beam 3, for example.

However, that doesn't mean there's no sonic tailoring whatsoever in the QCUE 2 – just that you might not be aware of it. CustomTune is a feature that actually made its debut in the QuietComfort Earbuds 2, but it's worth noting nonetheless, because I think it's a big part of what makes the sound and ANC so effective.

Basically, that thwomph sound in each ear when you put them on? It's not performative. What's happening is that this test sound travels through your ear's unique canals, bounces back to the buds nestled within them and is picked up by the microphones.

Then, Bose's CustomTune tech gets to work, potentially amplifying some frequencies while pulling back a touch others, depending on the architecture of your auricles. It's just that you don't take an active part in this test, in the way you do with lengthier tests offered by the Nothing Ear, for example.

Battery life? It's fine, but not exceptional. In my tests, I managed to get the promised six hours from them with my 'Work' mode deployed, but not a minute more – and that's largely because I found (unlike many rivals) they're able to play relatively loud and I was able to listen at just under 45% volume at my desk.

• Features score: 4.5/5

Bose QuietComfort Ultra Earbuds 2nd Gen review: Sound quality

• Loud, zealous, crisp and expansive audio
• Excellent across the whole frequency range
• Immersive Audio is beautifully handled

Let's take the excellent ANC performance as read (scroll back if you missed that). Sonically, the QCUE 2nd Gen are also a rare treat across the frequencies, with a layered and expansive soundstage that allows bass registers ample space to rumble and clack, midrange vocals and instruments to sound textured and fully realized, and treble trills to soar unaffected above it all.

If you love a considered hip-hop album (and I really do) you'll find much to celebrate here. I cue up OutKast's Stankonia and through the Bose buds Gasoline Dreams is an emotive romp filled with guitar kerrangs, drum fills and sonic articles lesser earbuds cannot unearth. Big Boi sounds extra indignant; Andre 3000's playful Georgian twang is just that bit more noticeable.

Switching to Ozzy Osbourne's Bark at the Moon (thank you, Ozzy), the complex layers of laughter, driving guitars and bass are faithfully captured and held dutifully in a cohesive but energetic mix – and when that guitar glances from left to right through the soundstages, it whooshes past each ear like a Tokyo bullet train.

For detail, they're also very good, and while there will always be that old argument about integrated, neutral hi-fi sound versus fun and excitement, for me, Bose has absolutely aced the sonic treatment here.

For detail and neutrality, you'll get just a little more from the aforementioned Technics EAH-AZ100, but for bass impact and zeal, the Bose buds take it. And there's so little in it this time around, I cannot dock any stars.

• Sound quality: 5/5

Bose QuietComfort Ultra Earbuds 2nd Gen review: Design

• Excellent mics for call-handling
• On-ear touch controls work very well
• Winning 'deep plum' finish

As mentioned (and pictured), the earbuds and case are extremely similar to the older model in terms of size, shape and driver array. What I didn't mention before is that there is a small difference to the build, and it's the addition of something Bose calls an embedded ear wax guard, to prevent any of the stuff produced naturally by our ears (let's not be weird; a healthy body creates ear wax) finding its way beyond the casework and into the driver housings.

I cannot say I had this issue with the older set, but having seen a few Reddit threads that mention it, it's a sensible addition from Bose.

Bose also promises improved voice pickup from the four mics per bud and thus improved call quality this time around, and I think the company has made good on that claim. It was a sore point in the older set, and this time callers felt I sounded much clearer and more present.

You can also tweak how much of your own voice you'd like to hear in the app (something rival Technics calls 'Sidetone') and it is beneficial if you prefer to hear a little more of your dulcet tones in calls, to avoid shouting at your recipient.

In the Bose app, there's a fit test to work out whether you've got the correct tips and fins fitted, and although it's quick and relatively rudimentary (I passed first time with the pre-fitted options, no issue) I did find the buds secure and comfortable during my testing.

Basically, if you've liked the fit of Bose's flagship earbuds to date, it's more of the same here. OK, in today's money the charging case could be considered a touch on the large side. For me it's no biggie, since its flat underside means it sits happily in my hand and in my bag without issue.

• Design score: 5/5

Bose QuietComfort Ultra Earbuds 2nd Gen review: value

• Simply the best ANC earbuds on the market
• …but not the cheapest

Value is an odd thing to quantify here, since it really is horses for courses. I keep coming back to this: there will be those out there who simply want the best noise-cancelling earbuds on the market, that also do great things with their music. This is that pair of earbuds.

No, they're possibly not the absolute best earbuds for small ears (although to clarify: I had no issue with fallouts and I have bijou ears, but they do protrude more than rivals) nor do they ask you various questions about what you're hearing and when you stop hearing certain frequencies to create sound profiles.

If you want to take an active part in augmentation, you'll be better served by AirPods Pro 2 or Nothing Ear. That said, not everyone wants this – and for me, the overall sound quality here is so good I wouldn't touch it anyway.

• Value: 5/5

Should I buy the Bose QuietComfort Ultra Earbuds 2nd Gen?

Buy them if…

Don’t buy them if…

Bose QuietComfort Ultra Earbuds 2nd Gen review: Also consider

How I tested the Bose QuietComfort Ultra Earbuds 2nd Gen

• Tested for two weeks
• Tested at home, walking along a crowded beach and on a packed train

I used the Bose QuietComfort Ultra Earbuds 2nd Gen for two weeks when writing this review, and my testing involved listening to music, podcasts and watching streamed movies from various devices – including Android and Apple sources.

I listened at home when working and taking calls, during several beach-combing walks and on a busy commuter train – and let me tell you, with these as my musical companion, it was no hardship.

I've been testing audio products full-time since 2019, firstly over at our sister publication What Hi-Fi? as a staff writer (locked in our hi-fi testing facility for two years, I was), then as senior writer at TechRadar and, since early 2024, audio editor. My background as a professional dancer is what drives me to search for faithful timing, precision, clarity and good old fashioned fun in recorded music.

• First reviewed in July 2025.

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