vs
8.5Battery8.4
Why is Comfo Flex better than Endurance Peak 4?
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · Endurance Peak 4: No
- Highest frequency40,000 Hz vs 20,000 Hz2×
- LDACYes · Endurance Peak 4: No
Why is Endurance Peak 4 better than Comfo Flex?
- Battery life10 h vs 12 h+20%
- Water resistance (IPx)IPx5 vs IPx8+60%
- Total with charging case40 h vs 48 h+20%
- Dust protection (IP)5 vs 6+20%
Specifications
Side by side
| Sound | ||
| Fit | Open-ear | In-ear |
| Driver type | — | Dynamic |
| Driver size | — | 10 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 40,000 Hz | 20,000 Hz |
| Impedance | — | 16 Ω |
| Sensitivity | 90 dB | 108 dB |
| Spatial / 3D audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | — | 6 |
| Battery & charging | ||
| Battery life | 10 h | 12 h |
| Battery life with ANC | — | 8 h |
| Total with charging case | 40 h | 48 h |
| Battery capacity | 70 mAh | — |
| Charging time | — | 4 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.4 |
| Bluetooth codecs | LDAC, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | No | No |
| LDAC | Yes | No |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | — | 10.5 g |
| Protection rating | IP55 | IP68 |
| Water resistance (IPx) | IPx5 | IPx8 |
| Dust protection (IP) | 5 | 6 |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
