vs
4.4Noise control & calls6.2
4.3Battery6.7
Why is SM-823D better than AeroFit 2 Pro?
SM-823D has no measurable advantages in this pair.
Why is AeroFit 2 Pro better than SM-823D?
- Active noise cancellingNo · SM-823D: Yes
- Charging time2 h vs 1 h2×
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Open-ear |
| Ear cup design | Closed-back | Open-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 11.8 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | — | 16 Ω |
| Sensitivity | — | 92 dB |
| Spatial / 3D audio | — | Yes |
| Head tracking | — | Yes |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Microphones | — | 4 |
| Noise reduction for calls | Yes | Yes |
| Battery & charging | ||
| Battery life | 7 h | 7 h |
| Battery life with ANC | — | 24 h |
| Total with charging case | — | 34 h |
| Battery capacity | — | 60 mAh |
| Charging time | 2 h | 1 h |
| Quick charge (claimed) | — | 10 min → 3,5 h |
| Fast charging support | — | Yes |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | — | 6.1 |
| Bluetooth codecs | — | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | No |
| LDAC | — | Yes |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Earbud weight (each) | — | 10.5 g |
| Protection rating | — | IP55 |
| Water resistance (IPx) | — | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | White | Matte Black, Gloss White, Matte Purple, Gloss Blue |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
