MDHearing Volt vs ReSound OMNIA miniRIE
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

MDHearing Volt
The MDHearing Volt is a budget-priced prescription hearing aid available for $397, earning a B grade with a SoundScore of 3.1/5 in our lab testing. This behind-the-ear, rechargeable device ranks #32 of 36 prescription hearing aids tested, placing it in the top 86% of its category. In our standardized testing, the Volt demonstrates excellent feedback handling at 5.0/5, scoring 0.29 points above the category average. This represents a genuine strength, as the device remained stable under our challenge protocols without audible squealing or whistling. However, speech performance presents significant limitations: speech in quiet scored 1.8/5 (1.57 points below the category average of 3.32), while speech in noise scored 1.0/5 (0.96 points below the 1.96 average). Own-voice comfort measured 2.6/5, a mixed result that falls 0.15 points below the category average. Music streaming is notably limited at 0.0/5, scoring 2.64 points below the category average—users prioritizing phone streaming should consider alternatives. The Volt showed no improvement between Initial and Tuned fits, with both configurations yielding identical scores of 3.1/5. The MDHearing Volt may suit budget-conscious consumers who prioritize basic amplification and excellent feedback stability over speech clarity or streaming features. However, shoppers in this price range should note that alternatives like the RxEars Rxi offer substantially higher performance at similar pricing.
Choice

ReSound OMNIA miniRIE
The ReSound OMNIA miniRIE is a premium behind-the-ear prescription hearing aid released in 2022, priced at $4,764. In our lab testing, it earned an A grade with a SoundScore of 4.0/5, ranking #24 of 36 devices in the Prescription Hearing Aid category. This device demonstrates solid performance in speech clarity for quiet environments, scoring 3.7/5—0.34 points above the category average. However, speech understanding in noisy situations is a notable weakness, with a score of just 1.0/5, falling 0.96 points below the category average. This contrast suggests the OMNIA miniRIE performs best for users who primarily need support in calmer listening environments rather than challenging acoustic situations like busy restaurants or crowded gatherings. Feedback handling is strong at 4.1/5 in absolute terms, though it sits 0.61 points below the category average of 4.71/5. Own-voice comfort scores 2.9/5, slightly above average but mixed in absolute terms. Music streaming performance is similarly positioned at 2.7/5—essentially at the category average. The OMNIA miniRIE features rechargeable batteries, iPhone and Android streaming capability, and hands-free functionality. It has received the Expert's Choice Award in both 2023 and 2024. At this premium price point, buyers should be aware that several same-price competitors like the Phonak Sphere Infinio and Oticon Intent offer higher overall scores in our testing. This device may suit users prioritizing quiet-environment speech clarity and brand-specific features over maximum performance in noise.
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)
Fitting configuration for tuned fit