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

Jabra Enhance Plus
The Jabra Enhance Plus is a mid-priced OTC hearing aid ($799) that earns a B grade with a SoundScore of 3.8/5 in our lab testing, ranking #28 of 65 devices in the OTC category. This visible-in-ear device delivers strong speech-in-quiet performance, scoring 4.2/5—a full 1.36 points above the category average. Music streaming is another highlight at 3.8/5, nearly 1.9 points above average, making it a solid choice for users who value audio quality beyond speech. Speech-in-noise performance scores 2.1/5, which is above the category average by 0.62 points but remains mixed in absolute terms for challenging listening environments. The most significant limitation is own-voice comfort, scoring just 0.3/5—well below the category average of 2.51/5. Users sensitive to how their own voice sounds while wearing hearing aids should consider this trade-off carefully. Feedback handling is excellent at 4.7/5, meaning wearers can expect stable performance without whistling or squealing. The Jabra Enhance Plus is best suited for users who prioritize clear speech in quieter settings and enjoy streaming music or calls to their iPhone. Those frequently in noisy environments or particularly bothered by occlusion effects may want to explore alternatives. Several competitors in the same price range achieve higher overall scores, including the Sony CRE-E10 and Lexie B2 Plus.

Linner Mercury
The Linner Mercury is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.1/5 in our lab testing. Priced at $387, it ranks #60 of 65 devices in the OTC Hearing Aid category, placing it in the top 91% of the category. In our testing, the Mercury shows a mixed performance profile. Its standout strength is excellent feedback handling at 4.7/5, which is 0.16 points above the category average—meaning users are unlikely to experience whistling or squealing during normal use. However, speech clarity metrics fall below category norms: speech in quiet scores 2.2/5 (0.62 points below average), and speech in noise scores a low 1.0/5 (0.48 points below average). Own-voice comfort also scores low at 1.6/5, sitting 0.91 points below the category average. Music streaming is a notable weakness, scoring 0.0/5—a full 1.92 points below the category average. Users who prioritize streaming audio from their phone should consider alternatives. The device uses a rechargeable battery and features a visible in-ear design with power dome coupling. At this price point, several competitors offer stronger overall performance. The Linner Mercury may appeal to budget-conscious consumers who prioritize feedback-free operation over speech clarity and streaming quality, but those seeking better speech understanding in challenging environments should explore higher-scoring options 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