Why is OpenJump better than Buds 4?
- Water resistance (IPx)IPx7 vs IPx5+40%
- Microphones4 vs 22×
- LDACYes · Buds 4: No
- Charging time1 h vs 1.2 h+20%
Why is Buds 4 better than OpenJump?
- Active noise cancellingNo · OpenJump: Yes
- Total with charging case42 h vs 45 h+7%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Open-back | — |
| Driver type | Dynamic | — |
| Driver size | 14.2 mm | — |
| Lowest frequency | — | 15 Hz |
| Highest frequency | — | 40,000 Hz |
| Impedance | — | 18 Ω |
| Sensitivity | — | 38 dB |
| Spatial / 3D audio | Yes | — |
| Head tracking | Yes | — |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 4 | 2 |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 11 h | 11 h |
| Battery life with ANC | — | 6 h |
| Total with charging case | 42 h | 45 h |
| Battery capacity | 60 mAh | — |
| Charging time | 1 h | 1.2 h |
| Fast charging support | — | Yes |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.4 |
| Bluetooth codecs | LDAC, SBC | LHDC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | No | No |
| LDAC | Yes | No |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | Yes |
| Low-latency game mode | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Weight | — | 49 g |
| Earbud weight (each) | 7.8 g | — |
| Protection rating | IPX7 | IP55 |
| Water resistance (IPx) | IPx7 | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | Black | — |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
