vs
6.0Battery4.9
Why is SoundForm Bolt True Wireless Earphones better than Comfo C?
- Battery life9 h vs 7 h+29%
Why is Comfo C better than SoundForm Bolt True Wireless Earphones?
- Water resistance (IPx)IPx4 vs IPx6+50%
- Driver size6 mm vs 12 mm2×
- Bluetooth version5.2 vs 5.4+4%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Open-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | Dynamic |
| Driver size | 6 mm | 12 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Sensitivity | — | 90 dB |
| Noise control | ||
| Active noise cancelling | No | — |
| Microphones | 2 | — |
| Battery & charging | ||
| Battery life | 9 h | 7 h |
| Total with charging case | 28 h | 28 h |
| Charging time | — | 1 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.4 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| USB-C | — | Yes |
| Design & build | ||
| Protection rating | IPX4 | IP56 |
| Water resistance (IPx) | IPx4 | IPx6 |
| Dust protection (IP) | — | 5 |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
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