vs
6.2Battery4.7
3.2Build & features4.8
Why is Sport True Wireless better than EAH-AZ40?
- Battery life9 h vs 7.5 h+20%
- Lowest frequency5 Hz vs 20 Hz4×
- aptXYes · EAH-AZ40: No
- Charging time1.5 h vs 2 h+33%
- Driver size7 mm vs 6 mm+17%
- Highest frequency21,000 Hz vs 20,000 Hz+5%
Why is EAH-AZ40 better than Sport True Wireless?
- Earbud weight (each)6.8 g vs 5 g+36%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 7 mm | 6 mm |
| Number of drivers | 1 | — |
| Lowest frequency | 5 Hz | 20 Hz |
| Highest frequency | 21,000 Hz | 20,000 Hz |
| Sensitivity | 110 dB | — |
| Spatial / 3D audio | Yes | — |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | No | — |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 4 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 9 h | 7.5 h |
| Total with charging case | 27 h | — |
| Battery capacity | 55 mAh | — |
| Charging time | 1.5 h | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.2 |
| Bluetooth codecs | aptX, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | Yes | No |
| LDAC | No | No |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 6.8 g | 5 g |
| Protection rating | IP54 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | 5 | — |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |








