vs
9.3Noise control & calls5.2
4.3Battery8.0
8.3Build & features8.1
Why is 4XD1R31390 better than Buds 4?
- Weight47 g vs 49 g+4%
- Charging time1 h vs 1.2 h+20%
Why is Buds 4 better than 4XD1R31390?
- Battery life7 h vs 11 h+57%
- Battery life with ANC4 h vs 6 h+50%
- Highest frequency20,000 Hz vs 40,000 Hz2×
- Lowest frequency20 Hz vs 15 Hz+33%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver size | 12.2 mm | — |
| Lowest frequency | 20 Hz | 15 Hz |
| Highest frequency | 20,000 Hz | 40,000 Hz |
| Impedance | 16 Ω | 18 Ω |
| Sensitivity | — | 38 dB |
| Hi-Res Audio | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | — | 2 |
| Battery & charging | ||
| Battery life | 7 h | 11 h |
| Battery life with ANC | 4 h | 6 h |
| Total with charging case | — | 45 h |
| Charging time | 1 h | 1.2 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.4 |
| Bluetooth codecs | — | LHDC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | Yes |
| Low-latency game mode | — | Yes |
| Design & build | ||
| Weight | 47 g | 49 g |
| Protection rating | IP55 | IP55 |
| Water resistance (IPx) | IPx5 | IPx5 |
| Dust protection (IP) | 5 | 5 |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
