vs
6.4Battery3.0
4.6Build & features9.1
Why is TE-BD21j better than UA TRUE WIRELESS STREAK?
- Battery life9 h vs 6 h+50%
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · UA TRUE WIRELESS STREAK: No
- aptXYes · UA TRUE WIRELESS STREAK: No
- Bluetooth version5.2 vs 5+4%
- Driver size8 mm vs 5.8 mm+38%
- Earbud weight (each)5.2 g vs 6.8 g+31%
Why is UA TRUE WIRELESS STREAK better than TE-BD21j?
- Water resistance (IPx)IPx4 vs IPx7+75%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver type | Hybrid | Dynamic |
| Driver size | 8 mm | 5.8 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | 32 Ω | 16 Ω |
| Sensitivity | 92 dB | 97 dB |
| Noise control | ||
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 9 h | 6 h |
| Charging time | 2 h | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5 |
| Bluetooth codecs | aptX Adaptive, aptX, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | Yes | No |
| LDAC | No | No |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 5.2 g | 6.8 g |
| Protection rating | IPX4 | IPX7 |
| Water resistance (IPx) | IPx4 | IPx7 |
| Features | ||
| Hands-free calls | Yes | Yes |
