vs
8.4Noise control & calls9.3
4.5Battery4.3
Why is AMIRON 100 better than FreeBuds Pro 4?
- Battery life8 h vs 7 h+14%
- Charging time2 h vs 2.5 h+25%
Why is FreeBuds Pro 4 better than AMIRON 100?
- Total with charging case27 h vs 33 h+22%
- Lowest frequency20 Hz vs 14 Hz+43%
- Highest frequency40,000 Hz vs 48,000 Hz+20%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Planar magnetic |
| Driver size | — | 11 mm |
| Number of drivers | — | 2 |
| Lowest frequency | 20 Hz | 14 Hz |
| Highest frequency | 40,000 Hz | 48,000 Hz |
| Impedance | 32 Ω | — |
| Hi-Res Audio | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | Yes | — |
| Microphones | 6 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 8 h | 7 h |
| Battery life with ANC | 5 h | 5 h |
| Total with charging case | 27 h | 33 h |
| Battery capacity | — | 55 mAh |
| Charging time | 2 h | 2.5 h |
| Quick charge (claimed) | 15 min → 3 h | — |
| Fast charging support | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.2 |
| Bluetooth codecs | LDAC, AAC, SBC | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | No | No |
| LDAC | Yes | Yes |
| Multipoint (two devices) | Yes | Yes |
| USB-C | — | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Protection rating | IP54 | IP54 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | 5 | 5 |
| Features | ||
| Touch controls | — | Yes |
