Why is Solo 4 better than FT1?
- Weight217 g vs 340 g+57%
Why is FT1 better than Solo 4?
- Driver size40 mm vs 60 mm+50%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | 40 mm | 60 mm |
| Lowest frequency | — | 10 Hz |
| Highest frequency | — | 40,000 Hz |
| Impedance | — | 32 Ω |
| Sensitivity | — | 98 dB |
| Spatial / 3D audio | Yes | — |
| Head tracking | Yes | — |
| Hi-Res Audio | Yes | Yes |
| Noise control | ||
| Active noise cancelling | No | No |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 50 h | — |
| Quick charge (claimed) | 10 min → 5 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | No |
| Bluetooth version | 5.3 | — |
| USB-C | Yes | — |
| USB audio | Yes | — |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | 217 g | 340 g |
| Features | ||
| Hands-free calls | Yes | — |
