vs
7.8Noise control & calls6.7
5.2Battery3.7
8.2Connectivity6.3
Why is QuietComfort Ultra Headphones (2nd Gen) better than Px7 S3?
- Battery life45 h vs 30 h+50%
- Weight264 g vs 300 g+14%
Why is Px7 S3 better than QuietComfort Ultra Headphones (2nd Gen)?
Px7 S3 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 40 mm |
| Spatial / 3D audio | Yes | — |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | — | 8 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 45 h | 30 h |
| Battery life with ANC | — | 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 Adaptive, SBC | aptX Lossless, aptX Adaptive, aptX HD, aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | Yes |
| LDAC | No | 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 | 264 g | 300 g |
| Foldable | Yes | Yes |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | Yes |
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