Why is iO-8 better than HDB 630?
- Driver size50 mm vs 42 mm+19%
- Highest frequency43,000 Hz vs 40,000 Hz+7%
Why is HDB 630 better than iO-8?
- Battery life35 h vs 60 h+71%
- Lowest frequency10 Hz vs 6 Hz+67%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 50 mm | 42 mm |
| Number of drivers | 1 | — |
| Lowest frequency | 10 Hz | 6 Hz |
| Highest frequency | 43,000 Hz | 40,000 Hz |
| Impedance | 25 Ω | 480 Ω |
| Sensitivity | 100 dB | 105 dB |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | Yes | Yes |
| Transparency / ambient mode | Yes | Yes |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 35 h | 60 h |
| Battery life with ANC | — | 60 h |
| Battery capacity | — | 630 mAh |
| Charging time | 2 h | 2 h |
| Quick charge (claimed) | — | 10 min → 7 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.2 |
| Bluetooth codecs | aptX Adaptive, aptX HD, aptX, AAC | aptX Adaptive, aptX HD, aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | Yes |
| LDAC | No | No |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | — | 311 g |
| Protection rating | IP52 | — |
| Water resistance (IPx) | IPx2 | — |
| Dust protection (IP) | 5 | — |
| Foldable | Yes | Yes |
| Colours | — | Lunar Silver, Black |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
