vs
3.1Noise control & calls5.7
Why is STAX Spirit S3 better than T2 Fidelio True Wireless?
- Driver size89 mm vs 9.2 mm9.7×
- Battery capacity1,500 mAh vs 75 mAh20×
- Highest frequency40,000 Hz vs 20,000 Hz2×
- aptXYes · T2 Fidelio True Wireless: No
Why is T2 Fidelio True Wireless better than STAX Spirit S3?
- Active noise cancellingNo · STAX Spirit S3: Yes
- Lowest frequency20 Hz vs 7 Hz2.9×
- LDACNo · STAX Spirit S3: Yes
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | Planar magnetic | Dynamic |
| Driver size | 89 mm | 9.2 mm |
| Lowest frequency | 20 Hz | 7 Hz |
| Highest frequency | 40,000 Hz | 20,000 Hz |
| Impedance | 24 Ω | 16 Ω |
| Sensitivity | 94 dB | — |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | — | 4 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 80 h | — |
| Total with charging case | — | 40 h |
| Battery capacity | 1,500 mAh | 75 mAh |
| Charging time | 1.5 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 | LDAC, LC3, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | No |
| LDAC | No | Yes |
| Multipoint (two devices) | Yes | Yes |
| LE Audio | — | Yes |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | Yes | — |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Design & build | ||
| Weight | 329 g | — |
| Protection rating | — | IPX4 |
| Water resistance (IPx) | — | IPx4 |
| Colours | Black | Black |
| Features | ||
| Hands-free calls | Yes | — |
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