vs
8.3Noise control & calls3.1
4.6Battery8.5
6.0Build & features7.2
Why is AMIRON 100 better than OpenFit 2?
- Active noise cancellingYes · OpenFit 2: No
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · OpenFit 2: No
- Lowest frequency20 Hz vs 50 Hz2.5×
- Highest frequency40,000 Hz vs 16,000 Hz2.5×
- Earbud weight (each)4.2 g vs 9.4 g2.3×
- LDACYes · OpenFit 2: No
Why is OpenFit 2 better than AMIRON 100?
- Battery life8 h vs 11 h+38%
- Total with charging case27 h vs 48 h+78%
- Water resistance (IPx)IPx4 vs IPx5+25%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Open-back |
| Driver type | Dynamic | Dynamic |
| Lowest frequency | 20 Hz | 50 Hz |
| Highest frequency | 40,000 Hz | 16,000 Hz |
| Impedance | 32 Ω | — |
| Sensitivity | 95 dB | 94 dB |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Transparency / ambient mode | Yes | — |
| Microphones | 6 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 8 h | 11 h |
| Battery life with ANC | 5 h | — |
| Total with charging case | 27 h | 48 h |
| Battery capacity | — | 56 mAh |
| Charging time | 2 h | — |
| Quick charge (claimed) | 15 min → 3 h | — |
| Fast charging support | Yes | Yes |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.4 |
| Bluetooth codecs | LDAC, AAC, SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | No | No |
| LDAC | Yes | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 4.2 g | 9.4 g |
| Protection rating | IP54 | IP55 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Dust protection (IP) | 5 | 5 |
| Colours | — | Black, Beige |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
