vs
Why is Outlier Free Pro better than Zero:Red?
Outlier Free Pro has no measurable advantages in this pair.
Why is Zero:Red better than Outlier Free Pro?
- Highest frequency20,000 Hz vs 39,500 Hz+98%
Specifications
Side by side
| Sound | ||
| Fit | Bone conduction | In-ear |
| Ear cup design | Open-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 10 mm |
| Number of drivers | — | 2 |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 39,500 Hz |
| Impedance | — | 10 Ω |
| Sensitivity | — | 117 dB |
| Battery & charging | ||
| Battery life | 10 h | — |
| Charging time | 3 h | — |
| Connectivity | ||
| Wireless | Yes | No |
| Bluetooth version | 5.3 | — |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| Multipoint (two devices) | Yes | — |
| 3.5 mm jack / AUX | — | Yes |
| Smart & streaming | ||
| Voice assistant | Google Assistant, Siri | — |
| Design & build | ||
| Weight | 32 g | — |
| Protection rating | IPX8 | — |
| Water resistance (IPx) | IPx8 | — |
| Colours | Blue | Blue, Black, Red |
