vs
5.6Battery5.0
6.7Build & features5.1
Why is AONIC 215 Gen 2 SE21DYBK+TW2-A better than LinkBuds S?
- aptXYes · LinkBuds S: No
Why is LinkBuds S better than AONIC 215 Gen 2 SE21DYBK+TW2-A?
- Hi-res codec (LDAC / aptX HD / LHDC)No · AONIC 215 Gen 2 SE21DYBK+TW2-A: Yes
- Battery life8 h vs 9 h+12%
- Highest frequency17,500 Hz vs 40,000 Hz2.3×
- LDACNo · AONIC 215 Gen 2 SE21DYBK+TW2-A: Yes
- Bluetooth version5 vs 5.2+4%
- Lowest frequency22 Hz vs 20 Hz+10%
Specifications
Side by side
| Sound | ||
| Fit | — | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 5 mm |
| Lowest frequency | 22 Hz | 20 Hz |
| Highest frequency | 17,500 Hz | 40,000 Hz |
| Impedance | 17 Ω | — |
| Sensitivity | 107 dB | — |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 8 h | 9 h |
| Battery life with ANC | — | 6 h |
| Total with charging case | — | 20 h |
| Charging time | 2 h | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.2 |
| Bluetooth codecs | aptX, AAC, SBC | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | Yes |
| aptX | Yes | No |
| LDAC | No | Yes |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Alexa, Google Assistant |
| Design & build | ||
| Weight | 21 g | — |
| Earbud weight (each) | — | 4.8 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | Yes |
