8.5Battery3.3
Why is Comfo Flex better than ZE300?
- Battery life10 h vs 5.5 h+82%
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · ZE300: No
- Water resistance (IPx)IPx5 vs IPx4+25%
- LDACYes · ZE300: No
Why is ZE300 better than Comfo Flex?
ZE300 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Open-ear | In-ear |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 40,000 Hz | — |
| Sensitivity | 90 dB | — |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | 10 h | 5.5 h |
| Total with charging case | 40 h | — |
| Battery capacity | 70 mAh | — |
| Charging time | — | 1.5 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | — |
| Bluetooth codecs | LDAC, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | No | No |
| LDAC | Yes | No |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | — | 4 g |
| Protection rating | IP55 | IPX4 |
| Water resistance (IPx) | IPx5 | IPx4 |
| Dust protection (IP) | 5 | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
