vs
3.5Battery5.4
7.6Build & features6.0
Why is ATH-CK1TW better than Openpiece S TE-S1?
- Water resistance (IPx)IPx5 vs IPx4+25%
Why is Openpiece S TE-S1 better than ATH-CK1TW?
- Battery life7 h vs 8 h+14%
- Driver size4.9 mm vs 10 mm2×
- Charging time3 h vs 1.5 h2×
- Earbud weight (each)6 g vs 4.2 g+43%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Open-ear |
| Ear cup design | — | Open-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 4.9 mm | 10 mm |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 25,000 Hz | — |
| Impedance | 16 Ω | — |
| Sensitivity | 98 dB | — |
| Adjustable equaliser | — | Yes |
| Battery & charging | ||
| Battery life | 7 h | 8 h |
| Total with charging case | — | 27 h |
| Charging time | 3 h | 1.5 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.1 | 5.2 |
| Bluetooth codecs | SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 6 g | 4.2 g |
| Protection rating | IPX5 | IPX4 |
| Water resistance (IPx) | IPx5 | IPx4 |
| Features | ||
| Hands-free calls | Yes | Yes |
