vs
4.9Battery4.7
Why is Studio Buds better than EAH-AZ40?
- Battery life8 h vs 7.5 h+7%
Why is EAH-AZ40 better than Studio Buds?
EAH-AZ40 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | — | 6 mm |
| Number of drivers | 1 | — |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | 8 h | 7.5 h |
| Total with charging case | 24 h | — |
| Charging time | — | 2 h |
| Quick charge (claimed) | 5 min → 1 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | — | 5.2 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| Smart & streaming | ||
| Voice assistant | Siri | — |
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | — | 5 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | — | Yes |
