Why is Q21i better than Q30i?
Q21i has no measurable advantages in this pair.
Why is Q30i better than Q21i?
- Battery life60 h vs 80 h+33%
- Battery life with ANC40 h vs 50 h+25%
- Bluetooth version5 vs 5.3+6%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | — |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 40,000 Hz |
| Impedance | 16 Ω | 16 Ω |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 60 h | 80 h |
| Battery life with ANC | 40 h | 50 h |
| Battery capacity | 185 mAh | — |
| Charging time | — | 2 h |
| Quick charge (claimed) | 5 min → 4 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.3 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Weight | — | 263 g |
| Colours | Black | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
