Why is OpenRun better than SPM-PRO?
OpenRun has no measurable advantages in this pair.
Why is SPM-PRO better than OpenRun?
- Weight26 g vs 20 g+30%
- Highest frequency20,000 Hz vs 35,000 Hz+75%
- Lowest frequency20 Hz vs 15 Hz+33%
Specifications
Side by side
| Sound | ||
| Fit | Bone conduction | In-ear |
| Ear cup design | Open-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Number of drivers | — | 2 |
| Lowest frequency | 20 Hz | 15 Hz |
| Highest frequency | 20,000 Hz | 35,000 Hz |
| Impedance | 8 Ω | 13 Ω |
| Sensitivity | 105 dB | 108 dB |
| Adjustable equaliser | Yes | — |
| Battery & charging | ||
| Battery life | 8 h | — |
| Battery capacity | 160 mAh | — |
| Charging time | 1.5 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | No |
| Bluetooth version | 5.1 | — |
| Bluetooth codecs | SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | — | Yes |
| Design & build | ||
| Weight | 26 g | 20 g |
| Protection rating | IP67 | — |
| Water resistance (IPx) | IPx7 | — |
| Dust protection (IP) | 6 | — |
| Colours | Black, Grey, Blue, Purple, Red | — |
| Features | ||
| Hands-free calls | Yes | — |
