Is the Austrian Audio Hi-X15 worth the upgrade from the Sennheiser MOMENTUM 3 Wireless?
Verdict
Meaningful upgrade
The Austrian Audio Hi-X15 scores 6.0 points above the Sennheiser MOMENTUM 3 Wireless. That's a real improvement, though not the kind you'd notice on every track. The gains are concentrated in value (6.5 to 9.0). On paper: weight 305 g to 255 g and driver size 42 mm to 44 mm. Worth checking: active noise cancelling goes Yes to No and multipoint pairing goes Yes to No. It's also $66 cheaper, which makes this an easy call. Worth doing if you're replacing anyway; harder to justify as a pure upgrade if what you have still works.
What actually changes
Sub-scores both products have, on the same 0-10 scale. Bars extend right for a gain, left for a loss.
- Sound8.58.5
- Value6.59.0
Spec differences
Only where the two genuinely differ - everything they share is omitted.
| Spec | MOMENTUM 3 Wireless | Hi-X15 | Direction |
|---|---|---|---|
| Active noise cancelling | Yes | No | |
| Weight | 305 g | 255 g | |
| Multipoint pairing | Yes | No | |
| Water resistance | IPX4 | Not rated | |
| Driver size | 42 mm | 44 mm | |
| Driver | 42mm dynamic | dynamic | |
| Frequency response | 6Hz-22kHz | 12Hz-24kHz |
About this verdict
Direction matters here: this page answers "MOMENTUM 3 Wireless to Hi-X15". The other direction is a separate question with a different answer. Scores blend published review verdicts across over-ear and shift as new reviews land, so a marginal call today may not be one next quarter.