vs
2.0Noise control & calls9.3
Why is Ultra Open Earbuds (2nd Gen) better than TWS STAX S10 ANC planar?
- aptXYes · TWS STAX S10 ANC planar: No
- Charging time1 h vs 1.5 h+50%
Why is TWS STAX S10 ANC planar better than Ultra Open Earbuds (2nd Gen)?
- Active noise cancellingNo · Ultra Open Earbuds (2nd Gen): Yes
- LDACNo · Ultra Open Earbuds (2nd Gen): Yes
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | Planar magnetic |
| Driver size | — | 12 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 40,000 Hz |
| Sensitivity | — | 92 dB |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Microphones | 2 | — |
| Battery & charging | ||
| Battery life | 9 h | — |
| Battery life with ANC | — | 18 h |
| Charging time | 1 h | 1.5 h |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.4 |
| Bluetooth codecs | aptX Adaptive, AAC, SBC | LDAC, LHDC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | No |
| LDAC | No | Yes |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 10 g | — |
| Protection rating | IPX4 | IP54 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | — | 5 |
| Colours | — | Black |
| Features | ||
| Hands-free calls | Yes | — |
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