vs
7.8Noise control & calls6.5
4.7Battery7.2
Why is W820NB Plus better than Live 670NC?
- Highest frequency40,000 Hz vs 20,000 Hz2×
- Charging time1.5 h vs 3 h2×
Why is Live 670NC better than W820NB Plus?
- Battery life29 h vs 65 h2.2×
- Battery life with ANC33 h vs 50 h+52%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | On-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 40,000 Hz | 20,000 Hz |
| Impedance | — | 32 Ω |
| Sensitivity | 91 dB | 98 dB |
| Hi-Res Audio | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | Yes | — |
| Microphones | — | 2 |
| Battery & charging | ||
| Battery life | 29 h | 65 h |
| Battery life with ANC | 33 h | 50 h |
| Charging time | 1.5 h | 3 h |
| Quick charge (claimed) | — | 5 min → 1 h |
| Fast charging support | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.3 |
| Bluetooth codecs | LDAC, aptX HD, AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | — |
| aptX | Yes | — |
| LDAC | Yes | — |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | — | Yes |
| Low-latency game mode | Yes | — |
| Smart & streaming | ||
| Voice assistant | — | Alexa |
| Design & build | ||
| Weight | 221 g | 219 g |
| Foldable | — | Yes |
| Features | ||
| Hands-free calls | — | Yes |
