6.8Battery3.8
Why is Air 2 better than FoKus Rex5?
- Battery life9 h vs 7 h+29%
Why is FoKus Rex5 better than Air 2?
- aptXNo · Air 2: Yes
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Hybrid |
| Driver size | 10 mm | 10 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 40,000 Hz |
| Impedance | — | 32 Ω |
| Sensitivity | — | 104 dB |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | 4 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 9 h | 7 h |
| Battery life with ANC | — | 5 h |
| Total with charging case | 40 h | — |
| Battery capacity | 40 mAh | — |
| Charging time | 1.5 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.4 |
| Bluetooth codecs | LDAC, SBC | LDAC, aptX Adaptive, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | No | Yes |
| LDAC | Yes | Yes |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| Low-latency game mode | Yes | — |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Protection rating | IPX7 | — |
| Water resistance (IPx) | IPx7 | — |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | — | Yes |
