vs
3.0Noise control & calls9.3
9.6Battery6.1
Why is STAX Spirit S3 better than Buds 4 Pro?
- Battery life80 h vs 9 h8.9×
- Charging time1.5 h vs 4 h2.7×
Why is Buds 4 Pro better than STAX Spirit S3?
- Active noise cancellingNo · STAX Spirit S3: Yes
Specifications
Side by side
| Sound | ||
| Fit | — | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 89 mm | — |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 40,000 Hz | — |
| Impedance | 24 Ω | — |
| Sensitivity | 94 dB | — |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Battery & charging | ||
| Battery life | 80 h | 9 h |
| Total with charging case | — | 36 h |
| Battery capacity | 1,500 mAh | — |
| Charging time | 1.5 h | 4 h |
| Quick charge (claimed) | 10 min → 11 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.3 |
| Bluetooth codecs | aptX Adaptive, aptX, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | — |
| aptX | Yes | — |
| LDAC | No | — |
| Multipoint (two devices) | Yes | — |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Water resistance (IPx) | — | IPx4 |
| Colours | Black | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | Yes |
