vs
7.5Sound8.3
7.2Noise control & calls5.2
3.8Battery4.4
4.2Build & features3.5
Why is ATH-TWX9MK2 better than Momentum True Wireless 4?
- Highest frequency40,000 Hz vs 21,000 Hz+90%
- Charging time2.5 h vs 4 h+60%
- Earbud weight (each)5.5 g vs 6.2 g+13%
Why is Momentum True Wireless 4 better than ATH-TWX9MK2?
- Battery life6.5 h vs 7 h+8%
- Lowest frequency10 Hz vs 5 Hz2×
- Bluetooth version5.2 vs 5.4+4%
- Driver size5.8 mm vs 7 mm+21%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 5.8 mm | 7 mm |
| Lowest frequency | 10 Hz | 5 Hz |
| Highest frequency | 40,000 Hz | 21,000 Hz |
| Impedance | 16 Ω | — |
| Sensitivity | 105 dB | 107 dB |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | — | 3 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 6.5 h | 7 h |
| Battery life with ANC | 6 h | 6 h |
| Total with charging case | — | 30 h |
| Charging time | 2.5 h | 4 h |
| Quick charge (claimed) | — | 8 min → 1 h |
| Fast charging support | — | Yes |
| Wireless charging (case) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.4 |
| Bluetooth codecs | aptX Adaptive, aptX, AAC, SBC | aptX Lossless, aptX Adaptive, aptX, LC3, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | Yes |
| LDAC | No | No |
| Multipoint (two devices) | Yes | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Alexa, Google Assistant |
| Design & build | ||
| Earbud weight (each) | 5.5 g | 6.2 g |
| Protection rating | IPX4 | IP54 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | — | 5 |
| Colours | — | Black Copper, Black Graphite, Denim, Gold, White Silver |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
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