vs
4.6Noise control & calls4.6
5.8Battery6.5
Why is Buds Pro 2 better than Liberty 4?
- Bluetooth version5.3 vs 5+6%
- Driver size11 mm vs 9.2 mm+20%
Why is Liberty 4 better than Buds Pro 2?
- Total with charging case25 h vs 28 h+12%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 11 mm | 9.2 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 40,000 Hz |
| Impedance | — | 16 Ω |
| Sensitivity | — | 91 dB |
| Spatial / 3D audio | — | Yes |
| Head tracking | — | Yes |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | No |
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 9 h | 9 h |
| Total with charging case | 25 h | 28 h |
| Charging time | — | 1 h |
| Quick charge (claimed) | 10 min → 3 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5 |
| Bluetooth codecs | — | aptX |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | Yes |
| LDAC | — | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Earbud weight (each) | — | 6 g |
| Protection rating | — | IPX4 |
| Water resistance (IPx) | — | IPx4 |
| Colours | — | Cloud White, Sky Blue, Nova Red, Midnight Black |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
