vs
5.3Noise control & calls9.2
6.9Battery4.2
Why is AH-C840NCW better than X3 Pro?
- Battery life10 h vs 7 h+43%
- Total with charging case35 h vs 22 h+59%
- Battery life with ANC7 h vs 6 h+17%
- Driver size12 mm vs 8 mm+50%
Why is X3 Pro better than AH-C840NCW?
- Charging time2 h vs 1.5 h+33%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | 12 mm | 8 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Sensitivity | — | 92 dB |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | Yes | — |
| Microphones | 2 | — |
| Battery & charging | ||
| Battery life | 10 h | 7 h |
| Battery life with ANC | 7 h | 6 h |
| Total with charging case | 35 h | 22 h |
| Charging time | 2 h | 1.5 h |
| Quick charge (claimed) | 5 min → 1 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.4 |
| Bluetooth codecs | LC3, AAC, SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | — |
| LE Audio | Yes | — |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 5 g | — |
| Protection rating | IPX4 | IP54 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | — | 5 |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
