Why is TE-BD21j better than TW-ES5A?
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · TW-ES5A: No
- Earbud weight (each)5.2 g vs 7.9 g+52%
Why is TW-ES5A better than TE-BD21j?
- Water resistance (IPx)IPx4 vs IPx5+25%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | Hybrid | Dynamic |
| Driver size | 8 mm | — |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | 32 Ω | — |
| Sensitivity | 92 dB | — |
| Noise control | ||
| Active noise cancelling | — | No |
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 9 h | 9 h |
| Total with charging case | — | 34 h |
| Charging time | 2 h | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.2 |
| Bluetooth codecs | aptX Adaptive, aptX, AAC, SBC | aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | Yes | Yes |
| LDAC | No | No |
| USB-C | Yes | — |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Design & build | ||
| Earbud weight (each) | 5.2 g | 7.9 g |
| Protection rating | IPX4 | IPX5 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Features | ||
| Hands-free calls | Yes | — |
