vs
4.9Noise control & calls5.8
7.8Battery8.0
4.6Build & features9.4
Why is Liberty 4 NC better than Sport X20?
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · Sport X20: No
- LDACYes · Sport X20: No
- Total with charging case50 h vs 48 h+4%
- Earbud weight (each)5.2 g vs 6.5 g+25%
Why is Sport X20 better than Liberty 4 NC?
- Active noise cancellingNo · Liberty 4 NC: Yes
- Water resistance (IPx)IPx4 vs IPx82×
- Battery life10 h vs 12 h+20%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver type | Dynamic | Dynamic |
| Driver size | 11 mm | 11 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 10 Ω | 16 Ω |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Adaptive ANC | Yes | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 6 | 6 |
| Noise reduction for calls | Yes | Yes |
| Battery & charging | ||
| Battery life | 10 h | 12 h |
| Battery life with ANC | — | 7 h |
| Total with charging case | 50 h | 48 h |
| Charging time | 3 h | 3 h |
| Fast charging support | — | Yes |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | LDAC, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | No | No |
| LDAC | Yes | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 5.2 g | 6.5 g |
| Protection rating | IPX4 | IP68 |
| Water resistance (IPx) | IPx4 | IPx8 |
| Dust protection (IP) | — | 6 |
| Colours | Velvet Black, Clear White, Navy Blue, Pastel Pink, Light Blue | Black, White, Green |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | Yes |
