vs
3.8Noise control & calls6.6
Why is Hi-X55 better than Monitor II A.N.C.?
- Lowest frequency5 Hz vs 20 Hz4×
- Weight305 g vs 320 g+5%
- Highest frequency28,000 Hz vs 20,000 Hz+40%
Why is Monitor II A.N.C. better than Hi-X55?
- Active noise cancellingNo · Hi-X55: Yes
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 40 mm |
| Number of drivers | — | 1 |
| Lowest frequency | 5 Hz | 20 Hz |
| Highest frequency | 28,000 Hz | 20,000 Hz |
| Impedance | 25 Ω | 32 Ω |
| Sensitivity | 118 dB | 96 dB |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | — | 4 |
| Battery & charging | ||
| Battery life | — | 45 h |
| Battery life with ANC | — | 30 h |
| Charging time | — | 2 h |
| Fast charging support | — | Yes |
| Wireless charging (case) | — | No |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5 |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant |
| Companion app | — | Yes |
| Design & build | ||
| Weight | 305 g | 320 g |
| Water resistance (IPx) | — | IPx0 |
| Foldable | Yes | Yes |
| Colours | Grey | Black |
