vs
4.5Build & features6.4
Why is TUNE 135BT better than C50i?
- Battery life25 h vs 7 h3.6×
Why is C50i better than TUNE 135BT?
- Hi-res codec (LDAC / aptX HD / LHDC)No · TUNE 135BT: Yes
- Water resistance (IPx)IPx4 vs IPx5+25%
- LDACNo · TUNE 135BT: Yes
- Bluetooth version5.4 vs 6+11%
- Driver size8.6 mm vs 12 mm+40%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Bone conduction |
| Ear cup design | — | Open-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 8.6 mm | 12 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 16 Ω | 14 Ω |
| Sensitivity | 99 dB | — |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 25 h | 7 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 | LDAC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | Yes |
| aptX | No | No |
| LDAC | No | Yes |
| Multipoint (two devices) | Yes | Yes |
| USB-C | — | Yes |
| Design & build | ||
| Weight | 19 g | — |
| Earbud weight (each) | — | 5.5 g |
| Protection rating | IPX4 | IP55 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | Black | Midnight Black, Purple, Pearl White |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | Yes |
