Fortell AI Hearing Aids vs Linner Mars

The Fortell AI Hearing Aids are a premium prescription behind-the-ear device priced at $6,800, earning an A grade with a SoundScore of 6.0/5 in HearAdvisor lab testing—an exceptional result that places this device at the top of the prescription hearing aid category. Speech performance is where the Fortell AI truly distinguishes itself. Speech in noise scores an outstanding 6.0/5, a full 3.89 points above the category average of 2.11/5—the kind of margin that represents a meaningful difference in challenging listening environments like restaurants or group conversations. Speech in quiet also excels at 4.6/5, sitting 1.20 points above the category average. Music streaming performs strongly at 4.2/5, coming in 1.44 points above average for the category. The device does have a notable limitation: own-voice comfort scores just 1.5/5, falling 1.20 points below the category average. This low absolute score suggests wearers may notice occlusion effects when speaking. Feedback handling is excellent at 4.8/5, essentially matching the category average. Best suited for: Users who prioritize understanding speech in difficult listening situations and value streaming quality, and who can tolerate potential own-voice occlusion. Given the premium price point, buyers should weigh whether the exceptional speech-in-noise performance justifies the investment compared to alternatives like the Oticon Intent or Oticon Zeal, which offer strong performance at lower price points.

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.