Linner Mercury vs Zepp Clarity Omni
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Linner Mercury
The Linner Mercury is a budget OTC hearing aid priced at $387, earning a B grade with a SoundScore of 3.0/5 in our lab testing. This visible-in-ear style device ranks #60 of 65 in the OTC Hearing Aid category, positioning it in the lower tier of available options. In our standardized testing, the Mercury demonstrates excellent feedback handling at 4.7/5, scoring 0.16 points above the category average. This means users are unlikely to experience whistling or squealing during typical wear. However, the device shows limitations in other key areas. Speech in quiet scores 2.2/5, falling 0.62 points below the category average, while speech in noise performance is low at 1.0/5, sitting 0.48 points below average. Own-voice comfort is also low at 1.6/5, measuring 0.91 points below the category average. The most significant limitation is music streaming, which scores 0.0/5—a full 1.92 points below the category average. Users who plan to stream phone calls or music through their hearing aids should consider alternatives. At this price point, competitors like the Elehear Beyond and Apple AirPods Pro 2 offer substantially higher overall scores. The Linner Mercury may suit budget-conscious first-time users who prioritize stable, feedback-free wear over streaming capabilities or challenging listening environments. However, those seeking better speech clarity or music quality should explore other options in this price range.

Zepp Clarity Omni
The Zepp Clarity Omni is a behind-the-ear OTC hearing aid priced at $399, earning a B grade with a SoundScore of 3.9/5 in HearAdvisor's lab testing. This places it in the top 37% of the 65 OTC hearing aids we've tested, offering solid overall performance in the budget price tier. The standout feature of the Omni is its music streaming quality, scoring 3.6/5—a full 1.68 points above the OTC category average. This makes it one of the stronger choices for users who prioritize phone audio streaming alongside hearing assistance. Feedback handling is excellent at 5.0/5, meaning users can expect stable performance without whistling during normal use. Speech clarity shows mixed results. Speech in quiet environments scores a solid 3.0/5, sitting 0.21 points above the category average. However, speech in noise scores 1.9/5—above the category average by 0.40 points, but still low in absolute terms. Users who frequently encounter noisy restaurants or group conversations may find performance limited in those situations. Own-voice comfort scores 2.7/5, which is above the category average but only mixed in absolute quality. The Zepp Clarity Omni is best suited for budget-conscious buyers who want reliable streaming audio and stable feedback performance, with adequate speech understanding in quieter settings. Those needing stronger speech-in-noise performance may want to explore alternatives like the higher-scoring Elehear Beyond in this price range.
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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)
Fitting configuration for tuned fit