Why is SM-823D better than Spark?
SM-823D has no measurable advantages in this pair.
Why is Spark better than SM-823D?
Spark has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Open-back |
| Driver type | Dynamic | Dynamic |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | — | 32 Ω |
| Sensitivity | — | 138 dB |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | No |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 7 h | 7 h |
| Total with charging case | — | 30 h |
| Charging time | 2 h | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | — | 5.4 |
| Bluetooth codecs | — | LHDC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| Design & build | ||
| Earbud weight (each) | — | 9.7 g |
| Protection rating | — | IP55 |
| Water resistance (IPx) | — | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | White | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
