vs
9.8Sound9.2
4.3Battery4.8
Why is FreeBuds Pro 4 better than Epic Open Sport?
- Total with charging case33 h vs 30 h+10%
- Lowest frequency14 Hz vs 20 Hz+43%
- Highest frequency48,000 Hz vs 40,000 Hz+20%
Why is Epic Open Sport better than FreeBuds Pro 4?
- Water resistance (IPx)IPx4 vs IPx5+25%
- Bluetooth version5.2 vs 5.4+4%
- Driver size11 mm vs 14.2 mm+29%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Open-ear |
| Ear cup design | Closed-back | — |
| Driver type | Planar magnetic | Dynamic |
| Driver size | 11 mm | 14.2 mm |
| Number of drivers | 2 | — |
| Lowest frequency | 14 Hz | 20 Hz |
| Highest frequency | 48,000 Hz | 40,000 Hz |
| Impedance | — | 16 Ω |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Microphones | — | 2 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 7 h | 7 h |
| Battery life with ANC | 5 h | — |
| Total with charging case | 33 h | 30 h |
| Battery capacity | 55 mAh | — |
| Charging time | 2.5 h | — |
| Quick charge (claimed) | — | 10 min → 1 h |
| Fast charging support | Yes | Yes |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.4 |
| 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 | Yes |
| Latency | — | 200 ms |
| Low-latency game mode | — | Yes |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Companion app | — | Yes |
| Design & build | ||
| Protection rating | IP54 | IP55 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Dust protection (IP) | 5 | 5 |
| Features | ||
| Touch controls | Yes | Yes |
