Bose QuietComfort Ultra Earbuds (2nd Gen)

Bose QuietComfort Ultra Earbuds (2nd Gen) Review

Brand: Bose
Released: December 23, 2025
Updated: 3 months ago
3.9
Overall review score
233
Review evidence points
50
Scored features
14
Expert reviews

Bottom Line

Choose these if you want class-leading ANC, rich sound, secure comfort, and improved calls in premium earbuds. Skip them if you need longer battery life, a smaller fit/case, stronger EQ tools, or a cheap Gen 1 upgrade.

Best for

Best for travelers, commuters, office workers, and runners who value elite ANC, rich bass-forward sound, secure fit, and improved call clarity. They also suit buyers who want premium Bose earbuds without owning the first generation.

Not for

Not for people with very small ears, users who need class-leading battery life, detailed EQ control, or the smallest case. First-generation owners may find the improvements too incremental unless wireless charging and call upgrades matter.

Verdict

Bose’s second-generation QuietComfort Ultra Earbuds earn their praise by pairing exceptional noise cancellation with rich, energetic sound and a secure, comfortable fit. Reviewers repeatedly describe the ANC as the class benchmark, especially for flights, commutes, offices, and gyms, while many also praise the bass-forward audio, separation, and improved call noise reduction. The tradeoff is that this is not a major reinvention: battery life is average, the case is bulky, the EQ is too basic for a premium model, and the large buds may not suit smaller ears. For owners of the first generation, the upgrade case is weaker than the first-time buyer case.

Feature Scorecards

Summary

50 reviewed features
  • Very positive 4.5-5.0
    9 (18%)
  • Positive 3.5-4.4
    28 (56%)
  • Neutral 2.5-3.4
    10 (20%)
  • Negative 1.5-2.4
    3 (6%)

Pros

  • 4.9
    14 reviews strong consensus
    Active noise cancellation: 4.9, 14 reviews, strong consensus
    Reviewers strongly agree that ANC is the standout feature: it removes airplane, subway, traffic, keyboard, cafe, and other ambient noise better than most or all earbuds they tested, with only minor caveats about hiss or sudden spikes.
  • 4.5
    14 reviews strong consensus
    Sound quality: 4.5, 14 reviews, strong consensus
    Sound quality is broadly strong, with rich, detailed, bass-forward playback praised by most reviewers, though a few disliked the stock tuning.
  • 4.4
    10 reviews strong consensus
    Comfort during long use: 4.4, 10 reviews, strong consensus
    Comfort is a major strength for many reviewers over long sessions, flights, runs, and daily use, though very small ears may struggle.
  • 4.1
    12 reviews moderate consensus
    Bass performance: 4.1, 12 reviews, moderate consensus
    Bass is generally rich, punchy, and deep, but some reviewers think Bose overboosts the low end or gives it too much emphasis for neutral listening.
  • 4.3
    6 reviews moderate consensus
    Stability: 4.3, 6 reviews, moderate consensus
    Stability is mostly excellent, especially for running and workouts, but one reviewer still disliked the running feel and movement.
  • 4.1
    9 reviews strong consensus
    Charging: 4.1, 9 reviews, strong consensus
    Charging is a notable upgrade thanks to wireless charging and case improvements, although one running-focused review found quick charging slower than ideal.

Cons

  • 2.1
    6 reviews low consensus
    Equalizer customization: 2.1, 6 reviews, low consensus
    EQ customization is the clearest software weakness: many reviewers criticize the basic three-band EQ as too limited for premium earbuds.
  • 1.8
    2 reviews limited evidence
    Preset EQ profile quality: 1.8, 2 reviews, limited evidence
    Preset EQ profiles are poorly regarded because they are basic and do not adequately fix the tuning complaints.
  • 2.3
    2 reviews limited evidence
    Frequency response accuracy: 2.3, 2 reviews, limited evidence
    Measurement-focused reviews say the frequency response is heavily shaped, with overemphasized bass and treble and recessed mids.
  • 2.6
    3 reviews strong consensus
    Earpad noise: 2.6, 3 reviews, strong consensus
    Several runners or active users noticed footstep thud or earbud movement noise, especially during runs or with sweaty ears.
  • 2.7
    2 reviews limited evidence
    Sensors: 2.7, 2 reviews, limited evidence
    Sensor behavior is a weak spot in the few comments available, with reviewers criticizing early CustomTune firing and suggesting in-ear detection be disabled.
  • 2.5
    1 review
    Cable quality: 2.5, 1 review
    The included cable drew a minor complaint because PCMag wanted a longer USB-C-to-USB-C cable.

Compared With Category Average

Compared with other Earbuds, this product is above average in aptX, Sound leakage, Active noise cancellation, near average in Sound quality, Comfort during long use, below average in Preset EQ profile quality, Equalizer customization, Frequency response accuracy.

Comparison summary

49 compared features
  • Above average 0.4+ pts higher
    16 (33%)
  • Same as average within 0.3 pts
    18 (37%)
  • Below average 0.4+ pts lower
    15 (31%)

Largest category differences

Attribute This product Category average Difference
Preset EQ profile quality 1.8 3.8 -2.1
Equalizer customization 2.1 3.8 -1.7
aptX 4.0 2.4 +1.6
Frequency response accuracy 2.3 3.9 -1.6
Sound leakage 4.4 3.0 +1.4
Active noise cancellation 4.9 3.9 +1.0
Battery 3.0 4.1 -1.0
Ear tip size options 2.5 3.7 -1.2

Consider This Instead

If you want better Value for money

Choose Sony WF-C510 Earbuds. It scores 4.7 vs 3.4 for Value for money, with a 3.9 overall score.

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If you want better Preset EQ profile quality

Choose Sony WF-C710N Earbuds. It scores 4.3 vs 1.8 for Preset EQ profile quality, with a 3.9 overall score.

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Compared in Reviews

Products reviewers directly compared with this model, grouped into quick takeaways.

  • Worse: sound reduction WIRED says Sony may sound slightly better, but Bose bests it on noise reduction.
  • Worse: low-end response Business Insider says Bose offers a more expansive low end than Sony WF-1000XM5 under default settings.
  • Better: natural sound and codec support PCMag says Sony's WF-1000XM5 sound more natural and support more hi-res codecs, while Bose wins ANC.
  • Better: battery life Business Insider says Technics EAH-AZ100 can last longer with ANC than Bose.
  • Better: dynamic range and clarity Gizmodo says the Bose kept pace with premium buds but lacked the Technics' dynamic range and clarity.
  • Similar: bass reproduction PCMag says the Bose can match the Technics EAH-AZ100 on one bass test track.

AirPods Pro 2

  • Better: transparency mode Mark Ellis says Bose's passthrough is not as good as AirPods Pro 2.
  • Worse: sound and ANC Run Testers says Bose beats AirPods Pro 2 on sound and ANC but AirPods are smaller and cheaper.
  • Worse: default bass response Business Insider says Bose delivers beefier low frequencies than AirPods Pro 2 by default.

FAQ

How good is the noise cancellation?

Reviewers strongly describe it as class-leading, with excellent performance against airplane rumble, subway noise, traffic, keyboards, cafes, and other steady ambient sounds.

Do they sound better than typical premium earbuds?

Most reviewers praise the sound as rich, detailed, and energetic, especially for bass and separation. A few measurement-focused reviews say the stock tuning overemphasizes bass and treble.

Are they comfortable for long sessions?

Most reviewers found them comfortable for hours, flights, workouts, and long runs. The main caveat is size, because smaller ears may find the chunky buds less comfortable.

Is battery life a weakness?

Yes, relative to the premium category. Reviewers generally describe about six hours with ANC as decent or average, with immersive audio reducing runtime further.

Are the microphones good for calls?

Call quality is much improved in several reviews, especially when Bose SpeechClarity suppresses background noise. A few tests still found voice processing or wind/noise handling only okay.

Should first-generation owners upgrade?

Most upgrade-focused reviewers say probably not unless wireless charging, improved call handling, and reduced ANC noise floor are important. The core sound, fit, and ANC remain very similar.

Sample Expert Reviews We Analyzed

These are a few of the reviews included in our analysis.

Video Reviews

Article Reviews

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