Why is EAH-AZ40 better than EAH-AZ80?
- Battery life7.5 h vs 7 h+7%
- Charging time2 h vs 7 h3.5×
- Earbud weight (each)5 g vs 7 g+40%
Why is EAH-AZ80 better than EAH-AZ40?
- Hi-res codec (LDAC / aptX HD / LHDC)No · EAH-AZ40: Yes
- Highest frequency20,000 Hz vs 40,000 Hz2×
- LDACNo · EAH-AZ40: Yes
- Driver size6 mm vs 10 mm+67%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 6 mm | 10 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 40,000 Hz |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | — | No |
| Transparency / ambient mode | Yes | Yes |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 7.5 h | 7 h |
| Total with charging case | — | 25 h |
| Charging time | 2 h | 7 h |
| Fast charging support | — | Yes |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.3 |
| Bluetooth codecs | AAC, SBC | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | Yes |
| aptX | No | No |
| LDAC | No | Yes |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 5 g | 7 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |









