vs
5.5Noise control & calls3.0
3.7Battery6.7
Why is QuietComfort Ultra Earbuds (2nd Gen) better than StereoMan ISI 3?
- Active noise cancellingYes · StereoMan ISI 3: No
- Charging time1 h vs 3 h3×
Why is StereoMan ISI 3 better than QuietComfort Ultra Earbuds (2nd Gen)?
- Battery life6 h vs 9 h+50%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Number of drivers | — | 1 |
| Spatial / 3D audio | Yes | — |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Adaptive ANC | Yes | — |
| Transparency / ambient mode | Yes | — |
| Microphones | 4 | — |
| Battery & charging | ||
| Battery life | 6 h | 9 h |
| Battery life with ANC | 4 h | — |
| Total with charging case | 24 h | — |
| Battery capacity | — | 700 mAh |
| Charging time | 1 h | 3 h |
| Fast charging support | Yes | — |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | — |
| Bluetooth codecs | aptX | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | Yes | — |
| LDAC | No | — |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | — | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Weight | — | 64 g |
| Earbud weight (each) | 10 g | — |
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | — |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
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