Reviewer consensus

Sonos Ace vs Bose QuietComfort Ultra

The Bose QuietComfort Ultra leads on case and comfort.

Noise cancelling and build quality are level. On 3 of the 6 topics the two are too close to call.

Counted from 34 reviewers who bought and tested both. We have not tested these headphones ourselves — every number below is a count of independent people, and links to the second they said it. Half of them covered the two within a month of each other, and 28 of 34 within a year.

Sonos Ace review by Smart Home Sounds
Sonos Ace review by This is Tech TodaySonos Ace review by Victor AbarcaSonos Ace review by 6 Months LaterSonos Ace review by Aaron X Loud and Wireless

From 45 videos by the 34 reviewers who covered both

Sonos Ace

Reviewers preferred it on

0 of 6 topics

Best on noise cancellation — 16 of 20 reviewers liked it

Bose QuietComfort Ultra review by Mark Ellis Reviews
Bose QuietComfort Ultra review by The Headphone ShowBose QuietComfort Ultra review by SoundGuysBose QuietComfort Ultra review by 6 Months LaterBose QuietComfort Ultra review by SuperSaf

From 47 videos by the 34 reviewers who covered both

Bose QuietComfort Ultra

Reviewers preferred it on

3 of 6 topics

Best on comfort and fit — 19 of 20 reviewers liked it

All 6 topics at a glance

Every topic at least 8 of the 34 reviewers discussed on both models. Percentages are the share who rated it positively. Pick one to jump to the evidence.

Topic Ace Bose QuietComfort Ultra Verdict
The carrying case40% 4 of 1080% 8 of 10Bose QuietComfort Ultra ahead
Comfort and fit65% 15 of 2395% 19 of 20Bose QuietComfort Ultra ahead
Sound quality67% 16 of 2486% 12 of 14Bose QuietComfort Ultra ahead
Design and build quality68% 15 of 2256% 5 of 9too close to call
Price and value50% 5 of 1038% 3 of 8too close to call
Noise cancellation80% 16 of 2092% 22 of 24too close to call

Where they differ

Each square is one reviewer; filled squares rated that topic positively. One reviewer counts once per topic, so these measure how many people agreed — not how loudly. A topic appears only where at least 8 reviewers covered it on both models.

Bose QuietComfort Ultra is better at

The carrying case

Most reviewers liked the Bose QuietComfort Ultra’s case. Most of the ones who discussed the Ace’s did not.

Bose QuietComfort Ultra8 of 10 reviewers liked it

Sonos Ace4 of 10 reviewers liked it

Danny Pops’s review, at 4:59
“Not only do they sound really good, but they're also very light and their case is small which is great for travel.”
Danny Pops · Jun 2024
I COMPARED THEM ALL! Sonos Ace vs Apple vs Sony XM5 vs Bose QC Ultra!
Watch this moment at 4:59 →
What reviewers said about the carrying case (28 quoted)

Bose QuietComfort Ultra

What they praised

“These have the ability to fold in which makes the case significantly more compact than a lot of the competition which is a real win if you travel with headphones regularly.”

6 Months Later · 2:42 · May 2026 →

“I still love how compact this is, which is perfect for tossing into your carry on or clipping onto a backpack strap if you're rushing through an airport.”

Oscarmini · 0:43 · Feb 2025 →

“The most notable difference design wise is the QC Ultra's dual hinge that allows it to fold down a little bit more compact compared to the Ace,”

CNET · 0:59 · Jul 2024 →

“obviously, if portability is your top priority and if you want something that you can take everywhere, you should get the ultra earbuds,”

Aaron X Loud and Wireless · 6:08 · Nov 2023 →

and 2 more with something to say here

What they criticised

“Unfortunately, the Bose Ultra hard case, it has these kind of... molds for you to actually position your headphones correctly, which to us actually makes it harder to position them correctly...”

DHRME · 4:49 · Feb 2024 →

“The ultras you need to buy a stupid silicone accessory to give it wireless charging, which is a cash grab.”

Fredo Heavy · 1:50 →

“these are $300 and it doesn't have a wireless charging case, that would be strike two.”

Aesthetic AL · 5:36 · Oct 2023 →

“The case doesn't have any dust or water assistance and it's quite a large case”

Picky Audio · 2:45 · Jan 2024 →

and 2 more with something to say here

Sonos Ace

What they praised

“And again this is a slightly chunkier box to carry around if you're traveling compared to the Bose one.”

Geekyranjit · 2:11 · Oct 2024 →

“The Sonos Ace is flat and fits easily into your bag. No bulk, no tangles.”

TC Acoustic · 2:44 · Jun 2025 →

“The travel case, very simple, very standard, because this allows you to take your headphones with you anywhere you go in a nice protective manner.”

Booredatwork.com · 1:13 · Jun 2024 →
What they criticised

“Unfortunately, in order to put these in the case, you have to have the steel rods all the way in as far as they'll go. So you have to adjust it for your head every time you take them out of the case.”

Stephen Robles · 1:16 · Jun 2024 →

“And then the headphones do not fold down at all to fit inside... you have to fully collapse them and then just place them in there so they don't they don't really pack down very small unfortunately”

Marques Brownlee · 2:46 · Jun 2024 →

“unfortunately it has this chunky zipper though to actually try to open and close it and you can see just the struggle and how difficult it is to actually be able to open and close it”

Phones And Drones · 0:57 · Apr 2026 →

“it honestly feels kind of disposable because it's made out of that same felt material and it's so lightweight and it just it feels really cheap.”

Jesse Chen · 7:12 · Aug 2024 →

and 9 more with something to say here

Comfort and fit

Reviewers liked both, but were clearly happier with the Bose QuietComfort Ultra’s comfort.

Bose QuietComfort Ultra19 of 20 reviewers liked it

Sonos Ace15 of 23 reviewers liked it

“With these oval silicone tips and stability bands which are each individually customizable, giving you a total of nine options, not only do these buds feel insanely secure when they're in my ears, they also…”
Joshua Chang
Bose Quietcomfort ULTRA Earbuds: Worth The Upgrade?
Watch this moment at 0:46 →
What reviewers said about Comfort and fit (75 quoted)

Bose QuietComfort Ultra

What they praised

“The headphones have just the right amount of clamping force so they feel fairly secure without any discomfort. The padding is quite plush and soft and the overall cup size just fits around my ears without pressing.”

Erin Lawrence · 2:20 · Nov 2025 →

“these are the only buds that I can throw into my ears with a 100% battery, drain them down all the way to 0% then take them out after like hours and hours and have zero discomfort or pressure points.”

Joshua Chang · 0:59 →

“Now the QC Ultra is our original comfort King so it has a very similar design actually if you look at the headband and how the material and the cushioning basically encompasses the entire headband.”

RecordingNOW · 1:37 · May 2025 →

“verdict on the Bose QuietComfort Ultra earbuds second gen for runners like these are outstanding headphones they are a lot better on the run than I thought they're going to be in terms of fit”

The Run Testers · 8:31 · Jul 2025 →

and 24 more with something to say here

What they criticised

“...the Bose QuietComfort Ultras... all suffer from the same problem of just falling off my head when I move around the gym, especially when laying down...”

Pete Matheson · 2:33 · Jun 2024 →

“personally the ear cups created more pressure than the QC45s on my ears, making long-term wear slightly uncomfortable”

The French Glow · 5:08 · Oct 2023 →

“Now, since this uses leather ear cups, they can get a bit warm during hotter weather or warmer environments.”

GH Tech Review · 1:07 · Jul 2025 →

“As long as you don't mind oval ear tips, I know some people complain about oval ear tips”

Picky Audio · 0:50 · Jan 2024 →

and 2 more with something to say here

Sonos Ace

What they praised

“Now Sonos say that they have a mechanism in the ear cup that adjusts to equalize pressure and create a better acoustic seal. I have to say, these are probably the best fitting headphones that I've tried.”

Smart Home Sounds · 4:27 · Jun 2024 →

“the first thing that I noticed was how comfortable they are. I mean, they are not a big ear cup by any shape by any shape form or whatever the imagination, but they encompassed my ears quite nicely.”

Jason T Lewis · 1:24 · Oct 2024 →

“the ear cushions have a plush memory foam and vegan leather finish... they really are quite comfortable. I had them on for a while during a flight recently and they were absolutely fine.”

SuperSaf · 1:49 · Jun 2024 →

“Now those three combined, their lights, they don't fall off my heads, they sound great and ANC is incredible, those three are the reasons why I am not returning the Sonos Ace after all.”

Pete Matheson · 8:40 · Jun 2024 →

and 25 more with something to say here

What they criticised

“I feel like the one thing I want is for these ear cups to be a bit more deep, I mean when they are on my ears they're fine, but they're just a little bit shallow and my ear is like touching the inside of it”

Marques Brownlee · 1:48 · Jun 2024 →

“I did find that the ear cups could get hot over time after a couple hours of wearing them or exercising in them, I exercised in these a couple times and every time they were just covered in sweat.”

Tech Fowler · 2:47 · Jun 2024 →

“if you have larger ears it might actually bother you like if your ears stick off your head a little bit these cups are probably going to be touching and pressing back on your ears a little bit”

Andrew Bond · 8:14 · Jun 2024 →

“Sadly fit is an issue. The headband is excellent, but the ear pads are too small and I found myself squeezing my ears into them affecting their long use comfort.”

Scientific Audiophile · 4:19 · Jun 2024 →

and 8 more with something to say here

Sound quality

Reviewers liked both, but were clearly happier with the Bose QuietComfort Ultra’s sound.

Bose QuietComfort Ultra12 of 14 reviewers liked it

Sonos Ace16 of 24 reviewers liked it

“sound quality of the Bose QC Ultra earbuds is very very good as you'd expect it's really warm really powerful you get a very big soundscape with lots of detail across every track I've listened to it across a…”
The Run Testers · 121k subscribers · Jul 2025
Bose QuietComfort Ultra Earbuds (2nd Gen) Review: How are Bose’s new top buds…
Watch this moment at 3:25 →
What reviewers said about Sound quality (70 quoted)

Bose QuietComfort Ultra

What they praised

“Level up your content with immersive audio and our class leading noise cancellation. So this mode has both spatial audio... with active noise cancellation turned on. This is the most realistic sounding audio you can get”

ShortCircuit · 5:19 · Nov 2023 →

“Immediately the QC Ultra has a much more detailed and open sound with a fuller representation of the entire frequency response... making the Sonos Ace sound stage feel rather narrow and compressed.”

RecordingNOW · 8:08 · May 2025 →

“I got to say the audio quality is not depressingly great. Bose is known for being really excellent when it comes to overall audio quality and these earbuds are no different.”

Erin Lawrence · 1:36 · Sep 2025 →

“frequency sweeps show that the QC Ultras are a lot more V-shapeded, you're going to get more oomph and gravity in your base, and sound staging is a little more wide”

Aaron X Loud and Wireless · 5:27 · Dec 2023 →

and 15 more with something to say here

What they criticised

“Another thing that I've noticed about these is that they are incredibly loud so occasionally people ask me how loud headphones go which bothers me because you don't want to damage your hearing.”

Mark Ellis Reviews · 5:14 · Oct 2023 →

“the Ultra needs a lot of EQ and a rather extreme EQ to get the best out of it”

RecordingNOW · 8:06 · Apr 2025 →

“These headphones lean way too much on the bass right out of the box.”

6 Months Later · 6:09 · May 2026 →

“with the QuietComfort, there were times it felt like the bass hit the deepest and was the strongest out of the group, but that was typically when things were at 70% volume or lower... As you get closer to 100%, it feels like the bass…”

CEONTHEMAKING · 7:33 · Dec 2024 →

and 3 more with something to say here

Sonos Ace

What they praised

“The Sonos Ace, on the other hand, aims for a true audio file experience. Sound is incredibly neutral and natural. The bass is tight and accurate, and the mids are clear and detailed. You can hear every nuance in a track, which makes them…”

Audio Lab Pro · 1:46 · Sep 2025 →

“If you have a Sonos you know system or multiple soundbars in your house grab these they really complement that whole setup really really well. These are also great for indoor use. If you want indoor headphones or headphones you're going to…”

GregglesTV · 8:50 · Jul 2025 →

“I do think these headphones sound good. Now they are not mind-blowing world-beating or anything crazy like that... but they have a nice full sound with great base all the way through strong highs... but you can brighten them right up by…”

Marques Brownlee · 4:29 · Jun 2024 →

“Whoa, this bass is really. It's like the kick drum is like this big, just the beat on just slapping it and they got no pillows in there. I think bass people will like these. I think if you like Sonos sounds, you'll probably like these.”

ShortCircuit · 7:37 · Jun 2024 →

and 25 more with something to say here

What they criticised

“I was expecting a little bit more. Like most other Bluetooth ANC headphones on the market right now, they have a very v-shaped sound signature with a big boost in the bass and the treble to the point that I had to turn them down in the EQ…”

Jesse Chen · 7:54 · Aug 2024 →

“It's style over substance. It's features over sound quality. Yes, it's got good ANC performance, yes, it has the spatial audio stuff, yes, it looks good and it's reasonably comfortable... But if you care about sound quality, this ain't it.”

The Headphone Show · 12:03 · Jun 2024 →

“One thing I can't really get over with the sound though is the fact that the sound, especially over Bluetooth, despite being overall nice, does have a bit of mufffulness going on with it.”

Get There Faster · 1:59 · Jun 2024 →

“For a brand with a tagline like brilliant sound, this is one frequency response that's a bit of a surprise. It's not bad, but it's a bit more uneven than expected.”

RTINGS Audio · 5:21 · Jul 2024 →

and 11 more with something to say here

All 6 topics at a glance

Where they are the same

On these 3 topics the two are within 15 points of each other. Percentages are the share of reviewers who came down positively on balance, so “both rated well” means both are good — not that neither stood out. A reviewer who praised a topic and also raised a caveat counts as positive here, and the caveat still appears under “what they criticised”, which is why a topic can read 100% and still have criticism attached to it.

Too close to call
Noise cancellationAlmost everyone liked both — 80% and 92% of reviewers liked them
What reviewers said about Noise cancellation (64 quoted)

Bose QuietComfort Ultra

What they praised

“ANC is excellent it's I think it's an area that Bose really is the market leader in in earbuds and it is going to filter out just everything when you're traveling or working or doing something like that”

The Run Testers · 5:12 · Jul 2025 →

“Bose QuietComfort Ultra: Suited for those prioritizing advanced noise cancellation, personalized sound, and a lighter, more comfortable design with additional smart features.”

Geo Statology · 3:25 · Aug 2024 →

“Bose QuietComfort Ultra is unsurprisingly the choice for those who crave the best noise cancelling tech on the market and a balanced, all-encompassing audio experience.”

Audio Zone · 5:28 · Oct 2024 →

“I definitely have to give the win to Bose on these. I mean it got whisper quiet despite the noise the despite the crowd noise that I was pumping out there”

RonOnTech · 7:16 · Jul 2024 →

and 27 more with something to say here

What they criticised

“one of the things I have with noise cancellation though is sometimes I just feel so cocooned into place that I almost feel like suffocated”

GadgetsBoy · 11:57 · Aug 2026 →

“Keep in mind if you're not playing any music and you're really listening closely, you might hear a little bit of white noise hiss.”

This is Tech Today · 8:04 · Jan 2026 →

“despite boasting the best active noise cancellation and the best audio performance from Bose ever, I've decided to return them.”

The French Glow · 0:05 · Oct 2023 →

“There's a slight hissing sound that comes in when the noise of my voice appears.”

6 Months Later · 1:18 · May 2026 →

and 3 more with something to say here

Sonos Ace

What they praised

“The most impressive thing really about their sound I think is the noise cancellation. It is really really good. It basically erases any sort of white noise, air conditioning, droning road noise... I think this is A-plus noise cancellation…”

Marques Brownlee · 5:06 · Jun 2024 →

“If you're looking to play with the big boys in 2024, you need to have noise cancelling. Well, this can be daunting, especially for a manufacturer with no prior experience in headphones, Sonos pulls it off.”

RTINGS Audio · 7:12 · Jul 2024 →

“So, judging these purely as wireless noise-cancelling headphones, I think they hold their own against the competition. If you're already in that Sonos ecosystem, these are a no-brainer.”

CRUTCHFIELD · 5:52 · Jun 2024 →

“I'm going to use this button to toggle the ANC and see if the hum from this big electrical transformer in this industrial building turns off. I'm in a void. It's absolutely gone.”

ShortCircuit · 4:41 · Jun 2024 →

and 16 more with something to say here

What they criticised

“There is no ANC wind reduction feature though, so if you're outdoors, you'll experience a lot of unwanted noise produced by the ANC system.”

RTINGS Audio · 7:50 · Jul 2024 →

“I've noticed they let in higher pitched noises like planking silverware for example.”

6 Months Later · 7:50 · Dec 2024 →

“three anc quirks the noise cancellation is great for low drones engines but it lets in high pitched sounds like clinking silverware or high voices more than the competition does”

Audio Lab Pro · 3:30 · Mar 2026 →

“while neither are as good as the Bose QuietComfort Ultra at completely blocking out noise, they do a good job at reducing common background noise.”

Tech Pendulum · 2:49 · Jun 2024 →

and 2 more with something to say here

Design and build qualityOpinions were split on both — 68% and 56% of reviewers liked them
What reviewers said about Design and build quality (53 quoted)

Bose QuietComfort Ultra

What they praised

“The advantage here is the QC Ultra can fold and collapse so thus it has a smaller footprint and it's clear that Bose designs their headphones for frequent flyers and travelers in mind”

RecordingNOW · 2:25 · May 2025 →

“the ultra is up I would say it's it's the I guess it's Ultra it's like their most high-end headphones that you can get with some new technology in it”

Tech By Leon · 0:33 →

“You can fold it all the way like this which is good, it means it's nice and compact so you can almost put this in your pocket”

GadgetsBoy · 2:22 · Aug 2026 →

“They went with a polished metal on the Gen 2 which I think looks a bit more elegant.”

6 Months Later · 1:55 · May 2026 →

and 6 more with something to say here

What they criticised

“You know, over time this thing can get scratched, you can see fingerprints on it and all of that. I just much prefer matter colored designed headphones.”

DHRME · 0:27 · Sep 2025 →

“I find it quite stiff so unless you set it already, but I think the best way to actually adjust it is by placing it on your head”

GadgetsBoy · 2:46 · Aug 2026 →

“The only slight criticism here is Bose still leans more towards lightweight plastics rather than ultra premium metal materials.”

Tagmond Tech · 2:09 · May 2026 →

“the black does show smudges especially if you have greasy fingers”

SuperSaf · 1:02 · Oct 2023 →

and 1 more with something to say here

Sonos Ace

What they praised

“We need to make sure the color works across different context, including like different hair colors and different skin tones, and all the environments that users might move through.”

Sonos · 3:33 · Jun 2025 →

“Picking them up feels nice. Sonos boasts that they're made from recycled materials, but they don't have that light equals cheap feel that you find in lower priced headphones.”

RTINGS Audio · 1:47 · Jul 2024 →

“The design is sleek and modern with premium materials you can feel. The ear cups use memory foam cushions that mould around your ears without making it feel tight or heavy.”

TC Acoustic · 1:34 · Jun 2025 →

“The Sonos Ace headphones are officially here and they're easily one of the best new headphones to hit the market. Although they certainly aren't cheap.”

CNET · 0:01 · Jun 2024 →

and 22 more with something to say here

What they criticised

“in reality it doesn't quite work like that... and it still took me a few attempts... a couple of days to really get my head around which way was the right way to put them on.”

Mark Ellis Reviews · 5:15 · Jun 2024 →

“these do scuff relatively easily, like I've been wearing these for a week and I've been pretty careful with them and they've still got scuffs on the side of them already.”

Tech Fowler · 12:55 · Jun 2024 →

“The soft white variant is especially prone to makeup stains though, so make sure to clean them off with a soft cloth or tissue if you notice any pigment transfer.”

RTINGS Audio · 1:39 · Jul 2024 →

“However, it would have been nice to be able to fold the headphones to reduce the size, something that is just now simply not possible.”

Get There Faster · 1:13 · Jun 2024 →

and 8 more with something to say here

Price and valueA common complaint on both — 50% and 38% of reviewers liked them
What reviewers said about Price and value (15 quoted)

Bose QuietComfort Ultra

What they praised

“So the Bose QuietComfort Ultra headphones are an incredibly expensive pair of headphones. The good news is if you want a pair of Bose headphones and you want the best sound the best comfort the best noise cancellation and the best ability…”

Mark Ellis Reviews · 10:24 · Oct 2023 →

“these guys come in at launch at 425 or 429... and when these guys first launched here is at 450, so the Bose Quiet Comfort Ultras get the win on price”

RonOnTech · 0:33 · Jul 2024 →
What they criticised

“Additionally, like the Sonos Ace, the price of the Bose quiet comfort Ultra is high, reflecting its premium features, but putting it out of reach for some consumers.”

True Choice · 4:40 · Feb 2025 →

“Selling for about $379 Canadian or $299 US, these are not a small investment for such a small piece of tech”

Erin Lawrence · 5:52 · Sep 2025 →

“They're just not $300 good.”

SoundGuys · 4:59 · Oct 2023 →

“The ultra is a tough one just because of how expensive it is. At least here in the Netherlands, 150 euros is no joke.”

DHRME · 14:38 · Nov 2023 →

Sonos Ace

What they praised

“Whereas the Sonos Ace, I do think are actually worthy of their price. Even if it's a little bit on the pricey side still, they sound incredible, ANC is one of the best I've ever experienced, and they are comfortable to wear for a long…”

Pete Matheson · 11:23 · Jun 2024 →

“And in terms of overall value, even though I was a little bit harsh with some of my ratings, I'm still going to give it a strong 7.5 out of 10 and this is because the pros really do outweigh the cons.”

Andrew Bond · 11:16 · Jun 2024 →

“The answer is yes. Everything about these screams 449 pounds...”

Mark Ellis Reviews · 14:03 · Jun 2024 →

“my final take is going to be that these headphones are going to be I guess the new king of this kind of price category because right now the AirPods Max it's a 3 almost 4 year old kind of pair of headphones, they are still overpriced in my…”

9to5Mac · 14:18 · Jun 2024 →
What they criticised

“But for the price of around 450 US dollars, I would have wanted a bit more clarity to it or at least the option to myself configure it the way I wanted it in more detail.”

Get There Faster · 2:14 · Jun 2024 →

“for value the Sonos Ace receives a 3.5 out of 5 while the QC Ultra receives a 4.0 out of 5.”

RecordingNOW · 12:03 · May 2025 →

“I think these two these two are the only weak points for the Ace”

NDTV · 4:16 · Apr 2025 →

“unfortunately the Sonos is going last place for me. The transparency is mediocre at best, it's okay, it's not the best... overall, these are just mediocre headphones”

SimplyPops · 21:33 · Jul 2024 →

and 1 more with something to say here

All 6 topics at a glance

Who this is counted from

All 34 covered both models — that is what makes the comparison worth anything: the same person, the same ears, the same expectations on both. Thumbnails open their video on YouTube.

Marques Brownlee, SuperSaf, Mark Ellis Reviews, ShortCircuit, This is Tech Today, The Verge, SoundGuys, The Headphone Show, Victor Abarca, Booredatwork.com, Smart Home Sounds, RecordingNOW and 22 more

How this is counted. One reviewer, one vote per topic — a reviewer who makes six points about sound counts once, so the numbers measure reception rather than talkativeness. Specifications and stated personal preferences are excluded; only assessments and direct comparisons count. A gap under 15 points is reported as level rather than as a winner.

No affiliate links, no sponsorship, and no payment from any brand mentioned. Updated September 2026.

SourceSignal.io

Find the signals hidden in search.

Source-attributed search intelligence. Evidence, not black-box SEO metrics.

© 2026 SourceSignalBuilt on live demand signals across search, YouTube and the web.