vs
3.8Noise control & calls8.6
Why is HD 550 better than REAL Blue NC 3?
- Highest frequency39,500 Hz vs 20,000 Hz+98%
- Lowest frequency6 Hz vs 10 Hz+67%
Why is REAL Blue NC 3 better than HD 550?
- Active noise cancellingNo · HD 550: Yes
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Open-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 40 mm |
| Number of drivers | — | 1 |
| Lowest frequency | 6 Hz | 10 Hz |
| Highest frequency | 39,500 Hz | 20,000 Hz |
| Impedance | 150 Ω | — |
| Sensitivity | 106 dB | — |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | — | 98 h |
| Battery capacity | — | 700 mAh |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.3 |
| Bluetooth codecs | — | aptX, AAC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | Yes |
| LDAC | — | No |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Companion app | — | Yes |
| Design & build | ||
| Weight | — | 280 g |
| Foldable | — | Yes |
| Colours | Black | — |
