Linner Mars vs Phonak Audeo R Infinio 90
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Linner Mars
The Linner Mars is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.1/5 in our lab testing. At $399, it falls in the lowest price tier for OTC devices, though its overall sound performance ranks #55 of 65 in the OTC Hearing Aid category. This device presents a stark contrast in performance across different listening situations. Music streaming is a genuine standout, scoring an excellent 4.6/5—well above the category average. Feedback handling also earns a perfect 5.0/5, meaning users shouldn't experience whistling or squealing issues. However, the Mars struggles significantly with its core hearing aid function: speech clarity. Speech in quiet scores just 1.9/5, and speech in noise drops to 1.0/5, both falling below category averages. Own-voice comfort is another weak point at 1.0/5, which is 1.51 points below the category average. Users may find their own voice sounds unnatural or boomy when wearing these devices. The tuned fit shows modest improvement over the initial fit (3.4/5 vs 3.1/5), primarily through better speech-in-quiet performance. The Linner Mars may appeal to budget-conscious consumers who prioritize music and media streaming over speech understanding. However, several competitors in the same price range—including the Elehear Beyond and Apple AirPods Pro 2—offer substantially better overall sound performance. Those seeking improved speech clarity should consider alternatives that score higher in that critical area.
Choice

Phonak Audeo R Infinio 90
The Phonak Audeo R Infinio 90 is a premium prescription behind-the-ear hearing aid released in 2024, priced at $4,996. In our lab testing, it earned an A grade with a SoundScore of 4.4/5, ranking #18 among 39 prescription hearing aids tested. Speech clarity is a standout strength in our testing. Speech in quiet scored 4.4/5, a strong result that sits 1.01 points above the category average. Speech in noise performance is more mixed at 2.5/5—above the category average by 0.37 points, but only moderate in absolute terms. This pattern suggests the Infinio 90 excels in calmer listening environments while offering incremental benefits in challenging noise. Streaming music quality impressed at 4.0/5, a strong score that lands 1.24 points above category average. Feedback handling scored 4.2/5, which is strong in absolute terms though 0.52 points below the category average. Own-voice comfort was mixed at 2.2/5, falling 0.50 points below average—something to discuss with your hearing care provider if natural voice quality is a priority. The Infinio 90 competes in a crowded premium segment. At this price point, alternatives like the Phonak Sphere Infinio (4.98/5) and Oticon Intent (4.83/5) achieved higher overall scores in our testing. Buyers seeking Phonak's ecosystem and strong speech-in-quiet performance may find the Infinio 90 appealing, though those prioritizing noise performance or own-voice comfort should compare options carefully with their provider.
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