4.7Build & features7.4
Why is TUNE 135BT better than B5?
- Battery life25 h vs 8.5 h2.9×
- Weight19 g vs 29 g+55%
Why is B5 better than TUNE 135BT?
- Water resistance (IPx)IPx4 vs IPx7+75%
- Driver size8.6 mm vs 16 mm+86%
- Bluetooth version5.4 vs 6+11%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Bone conduction |
| Driver type | Dynamic | — |
| Driver size | 8.6 mm | 16 mm |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Impedance | 16 Ω | 8 Ω |
| Sensitivity | 99 dB | 84 dB |
| Adjustable equaliser | Yes | — |
| Battery & charging | ||
| Battery life | 25 h | 8.5 h |
| Battery capacity | 130 mAh | — |
| Charging time | 2 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 6 |
| Bluetooth codecs | AAC, SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | — |
| Design & build | ||
| Weight | 19 g | 29 g |
| Protection rating | IPX4 | IPX7 |
| Water resistance (IPx) | IPx4 | IPx7 |
| Colours | Black | — |
| Features | ||
| Hands-free calls | Yes | Yes |
