vs
6.2Battery3.6
Why is OpenFit Air 2 better than E4 Pro?
- Battery life8 h vs 6 h+33%
- Driver size11.8 mm vs 10 mm+18%
Why is E4 Pro better than OpenFit Air 2?
E4 Pro has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Open-ear | In-ear |
| Ear cup design | Open-back | — |
| Driver type | — | Dynamic |
| Driver size | 11.8 mm | 10 mm |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Impedance | — | 24 Ω |
| Sensitivity | 98 dB | 90 dB |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Battery & charging | ||
| Battery life | 8 h | 6 h |
| Total with charging case | 36 h | — |
| Quick charge (claimed) | 10 min → 3 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 6.1 | 6 |
| Bluetooth codecs | AAC, SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Weight | — | 50 g |
| Earbud weight (each) | 7.2 g | — |
| Protection rating | IP55 | — |
| Water resistance (IPx) | IPx5 | — |
| Dust protection (IP) | 5 | — |
| Colours | Black, Ice Blue, White | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | Yes |
