Linner Mars vs Zepp Clarity Pixie
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.

Zepp Clarity Pixie
The Zepp Clarity Pixie is a mid-priced OTC hearing aid featuring an invisible-in-ear design, priced at $999. In our lab testing, it earned a B grade with a SoundScore of 3.6/5, placing it in the top 48% of the OTC hearing aid category. This device delivers solid speech clarity in quiet environments, scoring 3.6/5—notably 0.77 points above the category average. Speech understanding in noisy settings scores 1.7/5, which is above the category average but low in absolute terms, indicating modest benefit when background noise is present. Feedback handling is strong at 4.3/5, though slightly below the category average of 4.54/5. The Pixie shows significant limitations in certain areas. Own-voice comfort scores 1.5/5, falling 1.01 points below the category average, which may result in a noticeable hollow or boomy quality to your own voice. Music streaming capability is essentially absent, scoring 0.0/5—nearly 2 points below average—making this device unsuitable for those who prioritize streaming audio quality. The invisible-in-ear form factor offers excellent discretion, and the device includes rechargeable batteries with both iPhone and Android streaming connectivity. However, shoppers in this price range should note that several competitors offer substantially higher sound performance. The Zepp Clarity Pixie may appeal to those prioritizing an ultra-discreet design and strong speech clarity in quiet settings, but listeners who value streaming music or need better noise management may find better options elsewhere in this price tier.
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