vs
6.2Noise control & calls5.8
8.6Battery8.4
Why is Q31i better than Tune 780NC?
- Battery life80 h vs 76 h+5%
- Microphones4 vs 22×
Why is Tune 780NC better than Q31i?
Tune 780NC has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | On-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | — | 10 Hz |
| Highest frequency | — | 20,000 Hz |
| Sensitivity | 98 dB | — |
| Spatial / 3D audio | Yes | Yes |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | Yes | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | 4 | 2 |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 80 h | 76 h |
| Battery life with ANC | 50 h | 50 h |
| Charging time | — | 2 h |
| Quick charge (claimed) | 10 min → 10 h | — |
| Fast charging support | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 6 | 6 |
| Bluetooth codecs | LDAC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | — |
| aptX | No | — |
| LDAC | Yes | — |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Colours | Black | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | — |
