Bose
Bose QuietComfort Headphones
Over-ear · 2023
90
/ 100
From $349
VS
Sennheiser
Sennheiser HD 660S
Open-back
90
/ 100
From $499
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, Bose QuietComfort Headphones lands at 90 and Sennheiser HD 660S at 90. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Bose QuietComfort Headphones if…
- ✓Flagship comfort + ANC on modern models
- ✓Premium build
- ✓Active noise cancellation (most models)
Pick Sennheiser HD 660S if…
- ✓Reference-level detail
- ✓Well-regarded in audiophile community
- ✓Long-term ownership appeal
Bose QuietComfort Headphones 90
vs 90 Sennheiser HD 660S
Score breakdown
Bose QuietComfort Headphones
90 anc 88
sound 90
comfort 89
battery 82
features 86
Sennheiser HD 660S
90 anc 0
sound 90
comfort 88
battery 100
features 50
Specs side-by-side
| Spec | Bose QuietComfort Headphones | Sennheiser HD 660S |
|---|---|---|
| Type | Over-ear | Open-back |
| Release year | 2023 | — |
Bose QuietComfort Headphones
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
Sennheiser HD 660S
Pros
- +Reference-level detail
- +Well-regarded in audiophile community
- +Long-term ownership appeal
Cons
- −Requires amplifier (most)
- −No active noise cancellation
- −Impractical for commuting
FAQ: Bose QuietComfort Headphones vs Sennheiser HD 660S
Which is better, Bose QuietComfort Headphones or Sennheiser HD 660S? +
Both score 90 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Bose QuietComfort Headphones worth the price? +
At $349, Bose QuietComfort Headphones delivers a Specdex score of 90 — strongest in sound.
Is Sennheiser HD 660S worth the price? +
At $499, Sennheiser HD 660S delivers a Specdex score of 90 — strongest in battery.
Does Bose QuietComfort Headphones or Sennheiser HD 660S 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.