vs
4.8Battery6.4
4.8Build & features4.6
Why is Sound Reality ATH-CKR70TW better than TE-BD21j?
- Charging time1.5 h vs 2 h+33%
- Earbud weight (each)5 g vs 5.2 g+4%
Why is TE-BD21j better than Sound Reality ATH-CKR70TW?
- Battery life7 h vs 9 h+29%
- Hi-res codec (LDAC / aptX HD / LHDC)No · Sound Reality ATH-CKR70TW: Yes
- Bluetooth version5 vs 5.2+4%
- Driver size5.8 mm vs 8 mm+38%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver type | Dynamic | Hybrid |
| Driver size | 5.8 mm | 8 mm |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 25,000 Hz | — |
| Impedance | 16 Ω | 32 Ω |
| Sensitivity | 100 dB | 92 dB |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 7 h | 9 h |
| Charging time | 1.5 h | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.2 |
| Bluetooth codecs | aptX, AAC, SBC | aptX Adaptive, aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | Yes |
| aptX | Yes | Yes |
| LDAC | No | No |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 5 g | 5.2 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | Yes |
