MDHearing VoltMax vs Phonak Audéo Lumity
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

MDHearing VoltMax
The MDHearing VoltMax is a behind-the-ear OTC hearing aid priced at $699, earning a B grade with a SoundScore of 3.0/5 in our lab testing. This places it in the lower tier of the OTC hearing aid category, ranking 62nd out of 65 devices tested. In our testing, the VoltMax delivered mixed results across key performance areas. Its standout strength is excellent feedback handling, scoring a perfect 5.0/5—above the category average by 0.46 points. This means users can expect stable performance without whistling or squealing during typical daily activities. However, speech clarity proved challenging, with speech-in-quiet scoring 1.9/5 (0.93 points below category average) and speech-in-noise at 1.0/5 (0.48 points below average). Own-voice comfort measured 2.4/5, slightly below the category norm. A significant limitation is music streaming, which scored 0.0/5—nearly 2 points below the category average. Users who prioritize phone streaming for calls or media should consider alternatives. The device features rechargeable batteries, offering convenience over disposable options. At this price point, several competitors deliver substantially stronger overall performance. The VoltMax may appeal to budget-conscious consumers who primarily need basic amplification with reliable feedback control and don't require streaming capabilities. Those seeking better speech clarity or music streaming should explore higher-scoring options in this price range.
Choice

Phonak Audéo Lumity
The Phonak Audéo Lumity is a premium prescription behind-the-ear hearing aid released in 2022, priced at $4,398. In HearAdvisor's independent lab testing, it earned an A grade with a SoundScore of 4.1/5, ranking #23 among 39 prescription hearing aids tested. This device demonstrates particular strength in music streaming, scoring 4.1/5—a strong result that sits 1.34 points above the category average. Feedback handling is excellent at 5.0/5, providing reliable stability during wear. Speech clarity in quiet environments is solid at 3.7/5, measuring 0.29 points above average for prescription aids. However, the Lumity shows notable limitations. Own-voice comfort scores just 1.0/5, falling 1.70 points below the category average—a significant weakness that may affect user satisfaction during conversations. Speech understanding in noisy environments, while technically above average by 0.04 points, remains mixed in absolute terms at 2.1/5. The Audéo Lumity includes rechargeable batteries, streaming compatibility with both iPhone and Android devices, and hands-free calling capability. It received HearAdvisor's Expert's Choice Award in both 2023 and 2024. This hearing aid may suit users who prioritize music enjoyment and streaming quality, though those sensitive to own-voice perception or frequently in noisy environments may want to explore alternatives in this price tier.
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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
Recorded samples (Tuned)
Fitting configuration for tuned fit