vs
8.5Noise control & calls6.7
2.6Battery3.7
8.2Connectivity6.3
Why is QuietComfort Headphones (2nd Gen) better than Px7 S3?
QuietComfort Headphones (2nd Gen) has no measurable advantages in this pair.
Why is Px7 S3 better than QuietComfort Headphones (2nd Gen)?
- Battery life24 h vs 30 h+25%
- Battery life with ANC24 h vs 30 h+25%
- Microphones6 vs 8+33%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 40 mm |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 6 | 8 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 24 h | 30 h |
| Battery life with ANC | 24 h | 30 h |
| Charging time | 3 h | — |
| Quick charge (claimed) | — | 15 min → 7 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | — | aptX Lossless, aptX Adaptive, aptX HD, aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | Yes |
| LDAC | — | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | Yes |
| Design & build | ||
| Weight | — | 300 g |
| Foldable | Yes | Yes |
| Features | ||
| Hands-free calls | Yes | Yes |
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