vs
4.6Noise control & calls5.2
4.8Battery4.2
Why is Ultra Open Earbuds better than Momentum Sport?
- Battery life7 h vs 5 h+40%
- Total with charging case27 h vs 24 h+12%
- Charging time1 h vs 1.5 h+50%
Why is Momentum Sport better than Ultra Open Earbuds?
- Active noise cancellingNo · Ultra Open Earbuds: Yes
- Water resistance (IPx)IPx4 vs IPx5+25%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Open-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 10 mm |
| Number of drivers | — | 1 |
| Lowest frequency | — | 15 Hz |
| Highest frequency | — | 18,000 Hz |
| Sensitivity | — | 110 dB |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | — | 3 |
| Battery & charging | ||
| Battery life | 7 h | 5 h |
| Total with charging case | 27 h | 24 h |
| Battery capacity | — | 72 mAh |
| Charging time | 1 h | 1.5 h |
| Quick charge (claimed) | — | 10 min → 45 Minuten Laufzeit |
| Fast charging support | — | Yes |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.2 |
| Bluetooth codecs | aptX Adaptive, SBC | aptX Adaptive, aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | Yes |
| LDAC | No | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Alexa, Google Assistant |
| Companion app | — | Yes |
| Design & build | ||
| Protection rating | IPX4 | IP55 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | — | Black, Graphite, Olive |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
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