Autiphon U0 Series vs ReSound OMNIA RIE
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Autiphon U0 Series
The Autiphon U0 Series is a budget amplification product available at $99, earning a B grade with a SoundScore of 3.0/5 in HearAdvisor's lab testing. This visible-in-ear device ranks #6 of 8 amplification products tested, placing it in the top 63% of its category. In our testing, the U0 Series demonstrates excellent feedback handling at 5.0/5, scoring 0.72 points above the category average. This means users can expect stable performance without the whistling issues that plague some amplifiers. Speech in quiet environments scores 2.3/5—above the category average by 0.22 points, though only mixed in absolute terms. The device shows notable limitations in other areas. Speech in noise performance is low at 1.0/5, falling 0.37 points below the category average, which may make challenging listening environments difficult. Music streaming is the weakest area at 0.0/5, coming in 1.16 points below category average—users seeking audio streaming functionality should look elsewhere. The Autiphon U0 Series is best suited for budget-conscious consumers who primarily need basic amplification in quieter settings and prioritize reliable, feedback-free operation over advanced features. The rechargeable batteries add convenience at this price point. However, those who frequently encounter noisy environments or want to stream music should consider alternatives despite the higher cost.

ReSound OMNIA RIE
The ReSound OMNIA RIE is a premium prescription behind-the-ear hearing aid released in 2022, currently priced at $4,498. In HearAdvisor's lab testing, it earned a B grade with a SoundScore of 3.9/5, ranking #29 of 36 devices in the Prescription Hearing Aid category. This device shows a mixed performance profile in our testing. Its standout strength is speech clarity in quiet environments, scoring 3.7/5—a solid result that sits 0.42 points above the category average. Own-voice comfort also performs above average at 3.0/5, which may appeal to users concerned about how their own voice sounds while wearing hearing aids. However, the OMNIA RIE struggles significantly in challenging listening situations. Speech-in-noise performance scored just 1.0/5, falling 0.96 points below the category average—a notable limitation for users who frequently encounter noisy restaurants, gatherings, or other difficult acoustic environments. Feedback handling, while strong in absolute terms at 4.1/5, also trails the category average by 0.61 points. Music streaming delivers mixed results at 2.7/5, essentially matching the category average. The OMNIA RIE offers versatile connectivity with both iPhone and Android streaming, hands-free calling capability, and the flexibility of both rechargeable and disposable battery options. At its premium price point, however, several competitors in the same price range—including the Phonak Sphere Infinio and Oticon Intent—deliver substantially higher overall scores. This device may suit users who prioritize quiet conversation clarity and own-voice comfort over challenging noise performance.
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Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Scale 1-5 (Tuned)
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Audio scenes
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit