vs
6.1Noise control & calls5.1
3.9Battery8.0
8.4Build & features8.2
Why is Aurvana Ace better than Buds 4?
- Lowest frequency5 Hz vs 15 Hz3×
- Microphones6 vs 23×
- aptXYes · Buds 4: No
- Charging time1 h vs 1.2 h+20%
Why is Buds 4 better than Aurvana Ace?
- Battery life6 h vs 11 h+83%
- Total with charging case24 h vs 45 h+88%
- Battery life with ANC4 h vs 6 h+50%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | 10 mm | — |
| Lowest frequency | 5 Hz | 15 Hz |
| Highest frequency | 40,000 Hz | 40,000 Hz |
| Impedance | — | 18 Ω |
| Sensitivity | — | 38 dB |
| Hi-Res Audio | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | Yes | — |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 6 | 2 |
| Battery & charging | ||
| Battery life | 6 h | 11 h |
| Battery life with ANC | 4 h | 6 h |
| Total with charging case | 24 h | 45 h |
| Battery capacity | 52 mAh | — |
| Charging time | 1 h | 1.2 h |
| Quick charge (claimed) | 10 min → 1 h | — |
| Fast charging support | Yes | Yes |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.4 |
| Bluetooth codecs | aptX Adaptive, aptX, LC3, AAC, SBC | LHDC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | No |
| LDAC | No | No |
| LE Audio | Yes | — |
| USB-C | Yes | Yes |
| Low-latency game mode | — | Yes |
| Smart & streaming | ||
| Voice assistant | Google Assistant, Siri | — |
| Companion app | Yes | — |
| Design & build | ||
| Weight | — | 49 g |
| Earbud weight (each) | 4.7 g | — |
| Protection rating | IPX5 | IP55 |
| Water resistance (IPx) | IPx5 | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | Black | — |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
