Why is Comfo C better than K20i?
- Charging time1 h vs 2 h2×
- Water resistance (IPx)IPx6 vs IPx5+20%
Why is K20i better than Comfo C?
- Battery life7 h vs 10 h+43%
- Total with charging case28 h vs 36 h+29%
- Driver size12 mm vs 13 mm+8%
Specifications
Side by side
| Sound | ||
| Fit | Open-ear | In-ear |
| Driver type | Dynamic | — |
| Driver size | 12 mm | 13 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | — | 16 Ω |
| Sensitivity | 90 dB | — |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | — | No |
| Microphones | — | 2 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 7 h | 10 h |
| Total with charging case | 28 h | 36 h |
| Charging time | 1 h | 2 h |
| Quick charge (claimed) | — | 10 min → 2 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| USB-C | Yes | Yes |
| Low-latency game mode | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Earbud weight (each) | — | 3.3 g |
| Protection rating | IP56 | IPX5 |
| Water resistance (IPx) | IPx6 | IPx5 |
| Dust protection (IP) | 5 | — |
| Colours | — | Jet Black |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
