vs
5.5Sound4.9
4.9Noise control & calls7.2
7.8Battery3.7
4.6Build & features4.8
Why is Liberty 4 NC better than EAH-AZ40M2?
- Battery life10 h vs 7 h+43%
- Total with charging case50 h vs 24 h2.1×
- Driver size11 mm vs 6 mm+83%
Why is EAH-AZ40M2 better than Liberty 4 NC?
- Active noise cancellingNo · Liberty 4 NC: Yes
- Highest frequency20,000 Hz vs 40,000 Hz2×
- Charging time3 h vs 2 h+50%
- Earbud weight (each)5.2 g vs 5 g+4%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 11 mm | 6 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 40,000 Hz |
| Impedance | 10 Ω | — |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Adaptive ANC | Yes | — |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 6 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 10 h | 7 h |
| Battery life with ANC | — | 5 h |
| Total with charging case | 50 h | 24 h |
| Charging time | 3 h | 2 h |
| Fast charging support | — | Yes |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | LDAC, AAC, SBC | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | No | No |
| LDAC | Yes | Yes |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Alexa |
| Design & build | ||
| Earbud weight (each) | 5.2 g | 5 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Colours | Velvet Black, Clear White, Navy Blue, Pastel Pink, Light Blue | — |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
Related comparisons
vs
Soundcore Liberty 4 NCvsSony WF-C700N6.76.9vs
Soundcore Liberty 4 NCvsYamaha TW-E3C6.76.2vs
Soundcore Liberty 4 NCvsBose QuietComfort Ultra Earbuds6.75.5
vsApple AirPods 5vsSoundcore Liberty 4 NC6.36.7vs
Soundcore Liberty 4 NCvsJBL Tour Pro 36.77.9vs
Soundcore Liberty 4 NCvsBose Ultra Open Earbuds6.74.5