vs
6.4Battery4.4
Why is TE-BD21j better than FreeBuds Pro?
- Battery life9 h vs 7 h+29%
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · FreeBuds Pro: No
- aptXYes · FreeBuds Pro: No
- Earbud weight (each)5.2 g vs 6.1 g+17%
Why is FreeBuds Pro better than TE-BD21j?
- Charging time2 h vs 1 h2×
- Driver size8 mm vs 11 mm+38%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver type | Hybrid | Dynamic |
| Driver size | 8 mm | 11 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | 32 Ω | — |
| Sensitivity | 92 dB | — |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 9 h | 7 h |
| Battery life with ANC | — | 4.5 h |
| Charging time | 2 h | 1 h |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.2 |
| Bluetooth codecs | aptX Adaptive, aptX, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | Yes | No |
| LDAC | No | No |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 5.2 g | 6.1 g |
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | — |
| Features | ||
| Hands-free calls | Yes | Yes |
