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Bose QC45 · Moss Green — Over-ear · 2021
Bose

Bose QC45 · Moss Green

Over-ear · 2021

88
/ 100
From $329
VS
Bose QuietComfort Ultra wins by 5
Bose QuietComfort Ultra — CustomTune ANC · Immersive Audio · aptX Adaptive
Bose

Bose QuietComfort Ultra

CustomTune ANC · Immersive Audio · aptX Adaptive

93
/ 100
From $429
Specdex verdict

Bose QuietComfort Ultra takes it — here’s why.

In our weighted Specdex score, Bose QC45 · Moss Green lands at 88 and Bose QuietComfort Ultra at 93. That puts Bose QuietComfort Ultra ahead by 5 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Bose QC45 · Moss Green if…

  • ✓Flagship comfort + ANC on modern models
  • ✓Premium build
  • ✓Active noise cancellation (most models)

Pick Bose QuietComfort Ultra if…

  • ✓Best comfort in class
  • ✓Excellent ANC
  • ✓Immersive Audio spatial feature
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Sound quality

Bose QuietComfort Ultra

Tuning, detail, and staging

Bose QuietComfort Ultra leads on sound (92 vs 88).

Noise cancelling

Bose QuietComfort Ultra

ANC strength for commute and travel

Bose QuietComfort Ultra leads on anc (96 vs 86).

Comfort

Bose QuietComfort Ultra

Long-session wearability

Bose QuietComfort Ultra leads on comfort (98 vs 87).

Value for money

Bose QC45 · Moss Green

Specdex score per dollar at MSRP

Bose QC45 · Moss Green more score per dollar ($329 vs $429).

Bose QC45 · Moss Green 88
vs
93 Bose QuietComfort Ultra

Score breakdown

Bose QC45 · Moss Green
88
anc 86
sound 88
comfort 87
battery 82
features 84
Bose QuietComfort Ultra
93
anc 96
sound 92
comfort 98
battery 86
features 90

Specs side-by-side

Bose QC45 · Moss Green versus Bose QuietComfort Ultra — full spec comparison
Spec Bose QC45 · Moss Green Bose QuietComfort Ultra
Type
Over-ear
—
Release year
2021
—
Driver
—
35 mm dynamic
Battery
—
24 h (Immersive Audio off) / 18 h (on)
Weight
—
253 g
Codecs
—
SBC, AAC, aptX Adaptive

Bose QC45 · Moss Green

Pros
  • +Flagship comfort + ANC on modern models
  • +Premium build
  • +Active noise cancellation (most models)
Cons
  • −Battery varies by codec
  • −Some are Bluetooth-only
  • −Price creep vs previous gen

Bose QuietComfort Ultra

Pros
  • +Best comfort in class
  • +Excellent ANC
  • +Immersive Audio spatial feature
Cons
  • −Bose app fiddly
  • −No USB-C audio (3.5 mm + Bluetooth only)
  • −No LDAC support

FAQ: Bose QC45 · Moss Green vs Bose QuietComfort Ultra

Which is better, Bose QC45 · Moss Green or Bose QuietComfort Ultra? +

Bose QuietComfort Ultra scores 93 on our weighted rubric — ahead by 5. Your best pick depends on the sub-scores above.

Is Bose QC45 · Moss Green worth the price? +

At $329, Bose QC45 · Moss Green delivers a Specdex score of 88 — strongest in sound.

Is Bose QuietComfort Ultra worth the price? +

At $429, Bose QuietComfort Ultra delivers a Specdex score of 93 — strongest in comfort.

Does Bose QC45 · Moss Green or Bose QuietComfort Ultra last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is better for sound quality, Bose QC45 · Moss Green or Bose QuietComfort Ultra? +

Bose QuietComfort Ultra — leads on sound (92 vs 88). Tuning, detail, and staging.

Which is better for noise cancelling, Bose QC45 · Moss Green or Bose QuietComfort Ultra? +

Bose QuietComfort Ultra — leads on anc (96 vs 86). ANC strength for commute and travel.