vs
5.7Noise control & calls9.3
9.3Battery4.3
3.5Build & features8.3
Why is Tune 255NC better than 4XD1R31390?
- Battery life12 h vs 7 h+71%
- Battery life with ANC12 h vs 4 h3×
Why is 4XD1R31390 better than Tune 255NC?
- Water resistance (IPx)IPx4 vs IPx5+25%
- Charging time2 h vs 1 h2×
- Weight52 g vs 47 g+11%
- Driver size10 mm vs 12.2 mm+22%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver size | 10 mm | 12.2 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 16 Ω | 16 Ω |
| Sensitivity | 100 dB | — |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | Yes | — |
| Transparency / ambient mode | Yes | — |
| Battery & charging | ||
| Battery life | 12 h | 7 h |
| Battery life with ANC | 12 h | 4 h |
| Total with charging case | 48 h | — |
| Battery capacity | 65 mAh | — |
| Charging time | 2 h | 1 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Weight | 52 g | 47 g |
| Protection rating | IP54 | IP55 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Dust protection (IP) | 5 | 5 |
| Colours | Black | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
