Why is CX 80 U better than C50i?
- Lowest frequency17 Hz vs 20 Hz+18%
Why is C50i better than CX 80 U?
C50i has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Bone conduction |
| Ear cup design | Closed-back | Open-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 12 mm |
| Lowest frequency | 17 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 28 Ω | 14 Ω |
| Sensitivity | 119 dB | — |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | — | 7 h |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 6 |
| Bluetooth codecs | — | LDAC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | No |
| LDAC | — | Yes |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Weight | 14 g | — |
| Earbud weight (each) | — | 5.5 g |
| Protection rating | — | IP55 |
| Water resistance (IPx) | — | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | — | Midnight Black, Purple, Pearl White |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
