Why is A70 better than Q21i?
- Battery life72 h vs 60 h+20%
- Battery capacity650 mAh vs 185 mAh3.5×
Why is Q21i better than A70?
- Active noise cancellingNo · A70: Yes
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Impedance | 32 Ω | 16 Ω |
| Sensitivity | 110 dB | — |
| Hi-Res Audio | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | 72 h | 60 h |
| Battery life with ANC | — | 40 h |
| Battery capacity | 650 mAh | 185 mAh |
| Charging time | 3 h | — |
| Quick charge (claimed) | — | 5 min → 4 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | — | 5 |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Colours | — | Black |
