vs
4.7Noise control & calls5.5
3.2Battery3.7
4.9Build & features2.3
Why is AirPods 4 better than QuietComfort Ultra Earbuds (2nd Gen)?
- Total with charging case30 h vs 24 h+25%
- Earbud weight (each)5.4 g vs 10 g+85%
Why is QuietComfort Ultra Earbuds (2nd Gen) better than AirPods 4?
- Active noise cancellingNo · AirPods 4: Yes
- Battery life5 h vs 6 h+20%
- Microphones2 vs 42×
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Spatial / 3D audio | Yes | Yes |
| Head tracking | Yes | — |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 2 | 4 |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 5 h | 6 h |
| Battery life with ANC | — | 4 h |
| Total with charging case | 30 h | 24 h |
| Charging time | — | 1 h |
| Quick charge (claimed) | 5 min → 1 h | — |
| Fast charging support | Yes | Yes |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | — | aptX |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | Yes |
| LDAC | — | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | Siri | — |
| Companion app | — | Yes |
| Design & build | ||
| Earbud weight (each) | 5.4 g | 10 g |
| Protection rating | IP54 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | 5 | — |
| Features | ||
| Touch controls | Yes | Yes |
| Wear detection (auto pause) | Yes | — |
| Hands-free calls | Yes | Yes |
