vs
6.9Battery8.1
4.8Build & features3.3
Why is AH-C840NCW better than OpenDots ONE?
- Earbud weight (each)5 g vs 6.5 g+30%
Why is OpenDots ONE better than AH-C840NCW?
- Total with charging case35 h vs 40 h+14%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Open-ear |
| Ear cup design | Closed-back | Open-back |
| Driver type | Dynamic | — |
| Driver size | 12 mm | 11.8 mm |
| Sensitivity | — | 98 dB |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Transparency / ambient mode | Yes | — |
| Microphones | 2 | — |
| Battery & charging | ||
| Battery life | 10 h | 10 h |
| Battery life with ANC | 7 h | — |
| Total with charging case | 35 h | 40 h |
| Charging time | 2 h | — |
| Quick charge (claimed) | 5 min → 1 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.4 |
| Bluetooth codecs | LC3, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | Yes |
| LE Audio | Yes | — |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 5 g | 6.5 g |
| Protection rating | IPX4 | IP54 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | — | 5 |
| Colours | — | Pink, Black, Grey, Red |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
