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Bose QuietComfort Ultra (Gen 2) Earbuds Review

Spectacular sound and noise cancellation make these perfect for audiophiles, but the lackluster comfort and short battery life could be a no-go for some
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Bose QuietComfort Ultra (Gen 2) Earbuds Review
Credit: Matt Lighthart
Price:  $299 List
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Manufacturer:   Bose
Rachael Lamore
By Rachael Lamore ⋅ Senior Review Analyst  ⋅  November 25, 2025
78
OVERALL
SCORE


RANKED
#5 of 24
  • Sound Quality - 35% 8.7
  • Comfort & Fit - 25% 6.1
  • Noise Cancellation - 20% 8.5
  • App Features - 10% 7.0
  • Call Quality - 10% 8.0

Our Verdict

If you're looking for isolation and a sense of blocking out the chaos of the world, then the Bose QuietComfort Ultra (Gen 2) might be the buds you're looking for. These earbuds have impressive noise cancellation, managing to eek out a little better blocking power than the prior version. They are perfect for air travel and long days with too many distractions. They also provide immersive sound that feels warm and rich, full of depth and sparkle, even if it is a little bass-heavy (in all the best ways). However, they aren't the most comfortable buds, and Bose did little to improve on what most users felt was a bulky and protruding design and fit. Also, they have one of the shortest battery lives in the group, resulting in more downtime than most dedicated music lovers would prefer. Overall, we think that if your wallet is fat and your ears are bigger, the sound and noise-blocking capabilities could make you very happy. However, if you want more comfort or a longer-lasting battery, you might want to look elsewhere.
REASONS TO BUY
Immersive sound
Excellent noise cancellation
REASONS TO AVOID
Poor fit
Short battery life
High price
The Ultra Gen 2 case and buds are still bulky and less user-friendly than many competitors.
Credit: Matt Lighthart

Our Bose QuietComfort Ultra (Gen 2) Earbuds Experience


The Bose case is virtually identical to the older generation and is still on the bulky side for wireless earbuds.


While not the biggest in the group, the case is bigger than many competitors, even those with stems that require more room. We suspect that if the buds themselves weren't as bulky, there would be room to create a smaller case. We didn't have any trouble fitting them in crossbody bags and most pockets, but they won't fit in the smallest pockets.

bose quietcomfort ultra (gen 2) earbuds - the ultra gen 2 comes with multiple wings and ear tips to help find...
The Ultra Gen 2 comes with multiple wings and ear tips to help find the perfect fit.
Credit: Matt Lighthart

These earbuds come with three silicone ear tips and three wings or “bands.” While there should be enough variation and combinations for most folks to find a good fit, we didn't care for the fit and struggled to wear them for longer than 5 hours. Which frankly is about how long the battery lasts, so maybe it's a moot point.

bose quietcomfort ultra (gen 2) earbuds - the ultra gen 2 buds are bulky and fit larger ears better than...
The Ultra Gen 2 buds are bulky and fit larger ears better than smaller.
Credit: Matt Lighthart

All but the largest eared users thought they were bulky and wished they were bigger, and felt more secure. While they stayed put during treadmill runs and weight lifting, they protrude pretty far past our ears and are easily bumped. While they managed a handful of box jumps, stretching and chewing caused them to shift and even fall out occasionally.

The Gen 2 has easy-to-use touch controls.
Credit: Matt Lighthart

The extra space on the bud and stem makes the touch controls easy to use; however, they are sensitive, and regularly touching them to adjust the fit resulted in more accidental taps on the controls than we'd like. We had to find the sweet spot of touching only the outside edge when adjusting the fit, because otherwise we would skip tracks, change volumes, and even turn them off unintentionally.

Possibly one of the worst aspects of the Bose is its shorter battery life. While using them daily, they only lasted about six hours or less. This impacts how long you listen, and making it from a commute to an end-of-day workout wasn't possible without multiple recharges. While they recharge wirelessly (if you position them just so) and the case has three charges, it was still a bummer for buds this pricey to die midway through the morning before we'd even made it to lunch.

Our real-world phone calls to mom on mid-day breaks were clear, and she could hear us no matter where we trekked. Be it through the wood in the wind or along the highway or a quick stop for coffee, our words were clear, and the background muted. Sometimes she didn't even know we were outside or that semis were whizzing by.

bose quietcomfort ultra (gen 2) earbuds - a comparison of the original ultras (left) and the gen 2 (right).
A comparison of the original Ultras (left) and the Gen 2 (right).
Credit: Matt Lighthart

The differences between the new 2nd Gen and the original Bose QuietComfort Ultras is minimal and less exciting than we'd hoped. Sure, it might feel a little like shifting from HD to UHD, where you know the image is better, but it's only marginally better in practice. However, there were real issues with the first generation that they failed to address. First, the earbud shape remains largely the same, and it has never been particularly comfortable. Second, the battery life remains a disappointment, and given that many competitors offer significantly longer-lasting batteries, this is a notable shortcoming. That said, the noise cancellation is slightly better, and the sound quality has improved in a way that creates sweet, sweet music to our ears. While we see incremental movements forward in general, it somehow doesn't feel like enough. Depending on sales, the first generation might save you some money without sacrificing much by skipping the newer version.

Maybe. They offer exceptional sound and a musical tapestry that isn't easily duplicated in other buds. The noise cancellation is some of the best we've seen, and we placed some pretty good calls in some pretty loud places. However, they are expensive, aren't the most comfortable, and the battery life is downright dreadful. Depending on your goals, some of these hiccups could be a deal-breaker or only a minor annoyance. If your budget allows for this kind of price and how music sounds is your top priority, the Bose has a lot to offer. If you want a comfortable pair that lasts all day with good sound, or your ears are just too darn small for the Bose, we think there are other options to consider.

If you have this kind of money, then there are other compelling options that could meet your needs. Both the Apple AirPods Pro 2 and the Apple AirPods Pro 3 performed better overall. If you live in the iOS ecosystem, either could save you money, and the Pro 3 can provide better sound quality, noise cancellation, and call quality. If you want the absolute best sound quality, the Sennheiser Momentum True Wireless 4 is the best in the group, but it is less suited for calls and cancelling noise. If you live in the Android world, we like the Google Pixel Buds Pro 2. They will also save you money, but aren't as good at sound quality and noise cancellation, and are significantly more comfortable.

Our Analysis and Test Results



We listened to and analyzed sound for the Gen 2.
Credit: Matt Lighthart

Sound Quality


The 2nd Gen earned one of the highest sound quality results in the group. While missing the mark for absolute best in the bunch, they still offer a listening experience even the most hardcore audiophile will love.


While Bose might claim a neutral profile, we think the bass is a little dramatic, but damn, it sounds so good. The bass is full, rich, and theatrical with a considerable presence that isn't blown out or muddy. They manage to pack a punch without stealing the spotlight and are perfect for those who enjoy lows or more dramatic interpretations of their favorite tunes. The emphasized lows take the main stage while hearty mids and sparkling highs dance around them. While they aren't realistic, we couldn't get enough of them.

Expert Panel Sound Quality Ratings
ProductBassMid-RangeTreble
Best8.79.08.9
Bose QC Ultra (Gen 2)8.78.49.0
Average6.76.96.4
Worst3.02.32.5

The mids offer a range of colors and textures that are heart-stopping, with voices and timbres so well captured that the accuracy can almost be overwhelming. Fingers dragging across the fretboard while switching chords makes a scratching sound that you can hear, as if your ear is pressed against the guitar. They make you feel like you're in the room of a private concert for one.

The upper registers of the piano sound warm and twinkly, and there is an impressive range. There's a depth and fullness to these highs that make them stand out amongst the competition. The highs are emphasized more than the mids, but are not quite as dominant in the mix as the lows. However, it doesn't sound unbalanced; it sounds playfully insistent in its devotion to the drama. These highs have sparkle without ever becoming exhausting. Listening with these buds makes it feel like you're part of the music, not just listening to it.


Our house curve is similar to the frequency curve observed in the Gen 2. There is a similar path for the treble ranges with deeper, more pronounced bass. These findings confirm our listening interpretations while listening to the sound profile, which leans toward an emphasis in the bass end of the curve, though it isn't overpronounced.

Credit: Matt Lighthart

Soundstage


The 2nd Gen creates a nuanced, layered, and detailed world where the space around you is filled with pinpoint instrument locations. If the production value of the song is good, you can experience it all with clean separation, allowing individual voices to be savored.

bose quietcomfort ultra (gen 2) earbuds - the gen 2 are not as comfortable as we'd like for buds this expensive.
The Gen 2 are not as comfortable as we'd like for buds this expensive.
Credit: Matt Lighthart

Comfort and Fit


These buds were not all that comfortable, and many options can be worn for far longer.


bose quietcomfort ultra (gen 2) earbuds - with the new gen 2, bose missed the opportunity to improve on the...
With the new Gen 2, Bose missed the opportunity to improve on the comfort and fit and they didn't do much to make it better.
Credit: Matt Lighthart

While we managed a wear time hovering around five hours, we wished the new generation would be more comfortable and more secure than the old one, and they really weren't.

The Gen 2 noise cancellation is one of the better we tested. Unmute for a taste.
Credit: Matt Lighthart

Noise Cancellation


Noise cancellation is one place where the 2nd Gen really shine. It is so so good, it will bring a smile to your face.

ANC Performance by Frequency Range
ProductLowMidHigh
Best30.729.733.8
Bose QC Ultra (Gen 2)26.031.230.6
Average16.320.326
Worst0.00.01.0

They do have that typical “socked in” feeling common with great noise cancellation, but there is some adjustability in the app to increase awareness, which helps somewhat.


The cancellation helped us focus and stay on track with our workouts and work, limiting distractions from the world around us. We could still hear higher-frequency sounds, such as jangling keys and keyboard taps, but lower frequencies had disappeared, like the treadmill whir and partial weight plate clanging. Raising the volume blocks out more than we would have thought, with breaks in the music bringing back more sounds. Highway sounds still bleed through on walks, and we can hear our feet crunching on gravel when the music stops.

bose quietcomfort ultra (gen 2) earbuds - with improved noise cancellation over the original, the gen 2 allows...
With improved noise cancellation over the original, the Gen 2 allows you to focus on the music as the world fades away.
Credit: Matt Lighthart

Overall, they aren't the best in the group, but they get pretty close, and they are a touch better than the first generation. We believe most listeners will be pleased, but the outcome depends on the frequency you hope to block. There is a hint of white noise when the music stops as the noise cancellation works hard to block the ambient sound, but it isn't loud or hard to ignore.

The Gen 2 has a basic but uncluttered app.
Credit: Matt Lighthart

App Features


The Bose app is straightforward and uncluttered. It doesn't offer a plethora of options for adjustments or music enhancements like some competitors. Still, there is enough here to keep most listeners happy, and the default sound quality is so good that we don't think anyone will mind.

The EQ adjustments are basic, with only adjustments for bass, mids, and treble, which limits fine-tuning options. It has four basic EQ presets, but we didn't like them as much as the default.

These buds, like the first generation, still don't offer an “off” setting for the active noise cancellation. There is a sliding scale between greater awareness of the surrounding environment and complete noise cancellation. We appreciate the idea of customization for awareness, but for those sensitive to the adverse side effects of noise cancellation, there is no way to altogether avoid the feeling.

bose quietcomfort ultra (gen 2) earbuds - the gen 2 battery life is shocking short for the price.
The Gen 2 battery life is shocking short for the price.
Credit: Matt Lighthart

Battery Life


The Bose battery life is nothing to brag about, and we suspect it won't be enough for most people to make it through the day without downtime to charge, even if they use the quick charge feature.


These Bose only lasted about five and half hours, which is laughable compared to the competition. While they have three full charges and even a quick charge option, it still won't be enough for longer commutes, transatlantic flights, or a long day at the office with a workout on the way home.

The Bose Gen 2 have better call quality than many competitors.
Credit: Matt Lighthart

Call Quality


The Bose offer better call quality than most buds, with an above-average result in our tests, making it a good choice for those who make frequent calls or attend online meetings.



Our testing with these buds was a mixed bag. When we placed live calls in various situations with varying degrees of background noise, they performed admirably, with both parties feeling that the voices were clear, intelligible, and understandable. When we ran our prerecorded tests using the head and software, the voices struggled significantly, and they were often garbled and cut off. As the background noise increased, the voices became harder to hear.

bose quietcomfort ultra (gen 2) earbuds
Credit: Matt Lighthart

Since we believe our personal experience outweighs the data from the model, we conducted further research. Bose may be utilizing new technology that requires a moving jaw to help it analyze voices during calls, making our pre-recorded testing using a non-moving model not a true reflection of real-life scenarios. As such, we scored these buds based on our everyday experience, rather than relying solely on the computer data results.

Side-by-Side Comparison
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Rachael Lamore


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