vs
3.8Noise control & calls6.1
Why is Fidelio X3 better than Momentum 4 Wireless?
- Highest frequency40,000 Hz vs 22,000 Hz+82%
- Lowest frequency5 Hz vs 6 Hz+20%
- Driver size50 mm vs 42 mm+19%
Why is Momentum 4 Wireless better than Fidelio X3?
- Active noise cancellingNo · Fidelio X3: Yes
- Weight435 g vs 293 g+48%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Open-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 50 mm | 42 mm |
| Number of drivers | 1 | — |
| Lowest frequency | 5 Hz | 6 Hz |
| Highest frequency | 40,000 Hz | 22,000 Hz |
| Impedance | 30 Ω | 60 Ω |
| Sensitivity | 100 dB | 106 dB |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | — | Yes |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | — | 60 h |
| Battery life with ANC | — | 60 h |
| Battery capacity | — | 700 mAh |
| Charging time | — | 2 h |
| Quick charge (claimed) | — | 5 min → 4 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.2 |
| Bluetooth codecs | — | aptX Adaptive, aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | Yes |
| LDAC | — | No |
| NFC pairing | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | 435 g | 293 g |
| Foldable | — | Yes |
| Colours | Black | Black, Brown, Graphite, Teal, White, Denim, Copper |
| Features | ||
| Touch controls | — | Yes |
| Wear detection (auto pause) | — | Yes |
| Hands-free calls | — | Yes |
