Why is ATH-CK1TW better than Wave Flex?
- Water resistance (IPx)IPx5 vs IPx4+25%
- Highest frequency25,000 Hz vs 20,000 Hz+25%
Why is Wave Flex better than ATH-CK1TW?
- Battery life7 h vs 8 h+14%
- Driver size4.9 mm vs 12 mm2.4×
- Charging time3 h vs 2 h+50%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver type | Dynamic | — |
| Driver size | 4.9 mm | 12 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 25,000 Hz | 20,000 Hz |
| Impedance | 16 Ω | 16 Ω |
| Sensitivity | 98 dB | 105 dB |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Battery & charging | ||
| Battery life | 7 h | 8 h |
| Battery life with ANC | — | 8 h |
| Total with charging case | — | 32 h |
| Charging time | 3 h | 2 h |
| Quick charge (claimed) | — | 10 min → 2 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.1 | 5.2 |
| Bluetooth codecs | SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| USB-C | Yes | — |
| Design & build | ||
| Earbud weight (each) | 6 g | — |
| Protection rating | IPX5 | IP54 |
| Water resistance (IPx) | IPx5 | IPx4 |
| Dust protection (IP) | — | 5 |
| Features | ||
| Hands-free calls | Yes | Yes |
