vs
5.6Battery6.3
Why is AONIC 215 Gen 2 SE21DYBK+TW2-A better than Buds 4 Pro?
- Charging time2 h vs 4 h2×
Why is Buds 4 Pro better than AONIC 215 Gen 2 SE21DYBK+TW2-A?
- Battery life8 h vs 9 h+12%
- Bluetooth version5 vs 5.3+6%
Specifications
Side by side
| Sound | ||
| Fit | — | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Lowest frequency | 22 Hz | — |
| Highest frequency | 17,500 Hz | — |
| Impedance | 17 Ω | — |
| Sensitivity | 107 dB | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Transparency / ambient mode | Yes | — |
| Battery & charging | ||
| Battery life | 8 h | 9 h |
| Total with charging case | — | 36 h |
| Charging time | 2 h | 4 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.3 |
| Bluetooth codecs | aptX, AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | Yes | — |
| LDAC | No | — |
| USB-C | Yes | — |
| Design & build | ||
| Weight | 21 g | — |
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | Yes |
