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Bose QuietComfort 45
Over-Ear Wireless ANC

Bose

QuietComfort 45

Unrivaled comfort and elite noise cancellation marred by brittle audio and connectivity glitches.

2021Updated Jul 2026

At a Glance

The Bose QuietComfort 45 remains the gold standard for long-haul travelers and office workers who prioritize physical comfort and silence above all else. Its lightweight chassis and plush earpads allow for full-day wear without the fatigue common in heavier competitors.

However, audiophiles and remote professionals should exercise caution. The default sound profile suffers from a harsh treble spike that many find fatiguing, while the microphone performance and multipoint stability are too inconsistent for high-stakes conference calls.

Pros
  • Class-leading ergonomic comfort for all-day use
  • Elite active noise cancellation in the mid-range frequency
  • Tactile physical buttons for reliable control
  • USB-C charging with fast-charge capabilities
Cons
  • Harsh, clinical treble that can cause listener fatigue
  • Poor microphone isolation for professional calls
  • Wind noise interference in Aware Mode
  • Fragile earpad longevity under daily use

Source Breakdown

Compare scores and insights across source types

Reddit Sentiment

Analyzed 20 threads & 76 comments

ANC PerformanceWeight: 25%
78
Best Quote

"The noise canceling is excellent. However, the sound took some getting used to..."

Users generally find the ANC to be effective, though some note it's not a significant upgrade over previous models and can be negatively impacted by wind noise.

Sound QualityWeight: 20%
55
Best Quote

"Short answer: 99% sure I'm going to return them due to harsh treble."

While some users find the sound crisp and clear, a significant number complain about harsh treble, a lack of bass compared to competitors, and a sound profile that is not as refined as older models.

Comfort/FitWeight: 15%
85
Best Quote

"I'm pleased to say the QC45 are just as comfortable, and dare I say it, possibly even more so than the QC35."

The QC45 are widely praised for their exceptional comfort, allowing for extended wear without discomfort, even for users with glasses.

Battery LifeWeight: 10%
50
Best Quote

"Battery Life got decreased drastically. Officially they state it has gone down by 4 hours from 24 to 20 hours but really I get about 13-15 with volume never exceeding 50%."

Battery life is mentioned as a point of contention, with some users reporting significantly shorter actual usage times than officially stated, requiring more frequent charging.

Build QualityWeight: 10%
45
Best Quote

"After a year of use, my earpads wore out. At first, it was just an inconvenience, but eventually, it impacted the sound and noise-canceling performance."

Concerns are frequently raised about the build quality, particularly the durability of the earpads which tend to flake after about a year of use, and a perceived cheaper feel compared to older models.

Call Quality / MicWeight: 10%
35
Best Quote

"I think I'm just gonna wait till black Friday and get the 700s again. With working from home and school having the 700s and the USB Link is a godsend. If you change up the EQ I find the sound is fine. The Sony's really do feel muddy to me personally. I'd by happy if the 700s had button instead of touch controls. I WISH the 45s were the one headphone to rule them all. But nope, they seem cheaper than 700s in build and materials used. Along with less app features and customization. And sound that is subpar."

The microphone quality is consistently criticized, with users reporting that their voice is too quiet or muffled, making them unsuitable for important calls or conference meetings.

Features & ConnectivityWeight: 10%
40
Best Quote

"Connectivity Issues. Oh boy, there so many of them. If I connect two devices to the headphones I get this weird crackle every few minutes that sounds a bit like skipping."

Connectivity issues, especially when pairing with multiple devices, are a common complaint, alongside a lack of features like adjustable ANC levels and EQ that were present in or expected from competitors.

Editorial News

Analyzed 7 major publications

ANC PerformanceWeight: 25%
90
Best Quote

"The noise cancelling performance lives up to the QuietComfort legacy. When the former is activated, I found the world around me became eerily quiet."

Reviewers consistently praise the QC45's noise cancellation, noting its effectiveness in blocking out mid-range frequencies and creating a quiet environment, though some mention it's not quite as powerful as higher-end Bose or Sony models.

Sound QualityWeight: 20%
65
Best Quote

"The Bose QuietComfort’s presentation is clean, spacious, detailed and sharp but they can also sound clinical and a little brittle in tone."

While described as balanced and clear, the sound quality is frequently criticized for being too clinical, lacking musicality, and struggling with busy tracks, with some reviewers preferring the richer sound of competitors.

Comfort/FitWeight: 15%
95
Best Quote

"No one can ever say that Bose makes uncomfortable headphones. I wore the QuietComfort 45 for an entire workday with no ill effect."

Users universally agree that the QC45 headphones are exceptionally comfortable, even for extended wear, with plush padding and a lightweight design that doesn't cause fatigue.

Battery LifeWeight: 10%
90
Best Quote

"Bose rates the QuietComfort 45 for 24 hours of battery life and I can’t debunk that claim."

The battery life is consistently rated as excellent, meeting or exceeding the advertised 24 hours and outperforming many competitors, with the added benefit of quick charging.

Build QualityWeight: 10%
80
Best Quote

"The headphones’ arms and earcaps are made of matte plastic while the extenders are plastic, reinforced with custom cast metal."

The build quality is described as sturdy and reliable, utilizing a familiar plastic design reinforced with metal and glass-filled nylon, though some note it's not as sleek as other premium options.

Call Quality / MicWeight: 10%
85
Best Quote

"Thanks to the myriad of mics, the QuietComfort 45 offer great call quality. [...] callers said my voice sounded slightly clearer with the Bose headphones."

Call quality is generally praised as good to great, with improved noise reduction thanks to additional microphones, though a few instances of muffled or dropped calls were noted.

Features & ConnectivityWeight: 10%
60
Best Quote

"Viewed in the context of recent headphone releases, the QC 45’s feature count is spartan."

The QC45 offers essential features like multipoint Bluetooth and USB-C charging but is criticized for lacking advanced features found in competitors, such as adjustable ANC levels or wear detection, and only supports SBC/AAC codecs.

YouTube Creators

Analyzed 16 detailed reviews & 190 comments

ANC PerformanceWeight: 25%
85
Best Quote

"I tried the Bose in stores and the noise canceling was absolutely phenomenal. I was literally standing there thinking WTF??!!"

Users consistently praise the noise cancellation as effective and phenomenal, though some note it can be unusable in windy conditions.

Sound QualityWeight: 20%
65
Best Quote

"Can't really tell the tonal difference between the QC45's and the QC35 ii's."

While many find the sound quality good and clear, a significant portion of users feel it's not as impressive as competitors, especially before EQ updates, with some noting it can be too bright.

Comfort/FitWeight: 15%
95
Best Quote

"They are the most comfortable headphones I have ever used, and comfort cannot be understated for importance."

Comfort is overwhelmingly cited as a major strength, with users frequently stating they are the most comfortable headphones they have ever worn, even for extended periods.

Battery LifeWeight: 10%
80
Best Quote

"They feel really great, battery is really good, noise cancellation is good and i think the sound quality is good as well."

Battery life is generally considered good, with users reporting it lasts around 24 hours, which is sufficient for most daily activities and travel.

Build QualityWeight: 10%
80
Best Quote

"The Bose are light weight but very rugged, I've owned the same QC35II since 2016 and so many times I've rounded a corner and got to close to corner and knocked the headphone straight into the wall while wearing them."

The build quality is perceived as durable and robust, with many users having long-term positive experiences with Bose products, though some mention material deterioration in warm weather.

Call Quality / MicWeight: 10%
45
Best Quote

"I find the mic's to be mediocre on the other end of phone calls. The sound is find on my end, but mediocre from the person I'm speaking with."

User feedback on call quality is largely negative, with multiple comments describing the microphone performance as mediocre or having low sound.

Features & ConnectivityWeight: 10%
60
Best Quote

"Don’t understand why Bose didn’t take a giant leap with the sound quality. They still don’t have an EQ settings with the QC series or app."

While praised for physical buttons and multipoint connectivity, the lack of EQ options (initially) and issues with wind noise cancellation were noted drawbacks, though firmware updates have improved some features.

The Comfort King vs. The Clinical Sound

The Bose QuietComfort 45 (QC45) arrives as a refined iteration of a legendary silhouette, doubling down on the brand's core strengths: silence and ergonomics. While tech blogs celebrate its "spartan" efficiency, long-term users on Reddit and YouTube reveal a more fractured reality. The hardware is a masterclass in weight distribution, yet the software and sonic tuning leave a significant portion of the community looking for the exit.

Initial Impressions vs. Long-Term Reality

Professional reviewers initially lauded the QC45 for its improved battery life and USB-C integration, often citing the 24-hour runtime as a major win. As one tech blog noted:

Bose rates the QuietComfort 45 for 24 hours of battery life and I can’t debunk that claim.

However, long-term owners on Reddit paint a different picture, reporting significant battery degradation and real-world performance that often falls 30-40% short of the marketing claims. While reviewers found the build "sturdy," owners who have lived with the device for over a year report that the synthetic leather earpads flake and peel prematurely, directly impacting the seal required for effective ANC.

Sonic Friction and Connectivity Woes

The most aggressive divide exists in the audio department. Tech blogs describe the sound as "clean and spacious," but the user community frequently describes it as "brittle" or "harsh." This isn't just a matter of taste; it is a fundamental disagreement on the QC45's tuning. One Reddit user summarized the frustration perfectly:

Short answer: 99% sure I'm going to return them due to harsh treble.

Connectivity further complicates the value proposition. While the inclusion of multipoint Bluetooth is a headline feature, the execution is often buggy. Users report frequent audio crackling and digital artifacts when switching between a laptop and a smartphone. As one frustrated owner explained:

If I connect two devices to the headphones I get this weird crackle every few minutes that sounds a bit like skipping.

The Noise Cancellation Paradox

Bose continues to dominate the isolation game, with the QC45 effectively erasing engine drones and office chatter. Yet, this performance is strictly limited to indoor or calm environments. The lack of a "wind reduction" mode—a feature common in Sony and Sennheiser rivals—means that the external microphones often amplify wind gusts directly into the user's ears when in Aware Mode. This makes the headphones nearly unusable for outdoor walks in breezy conditions, a stark contrast to their otherwise stellar performance in a controlled office setting.