Jabra Enhance Select 500 vs Linner Mercury
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Jabra Enhance Select 500
The Jabra Enhance Select 500 is a premium behind-the-ear OTC hearing aid priced at $1,995 that earns an A grade with a SoundScore of 4.2/5 in our lab testing. Ranking #13 of 65 OTC hearing aids tested, it places in the top 18% of its category. This 2024 release demonstrates strong speech-in-quiet performance, scoring 4.3/5—a full 1.50 points above the OTC category average. Speech-in-noise scores 1.8/5, which is above the category average by 0.31 points but remains low in absolute terms, reflecting a common challenge across OTC devices. Feedback handling is excellent at 4.6/5, slightly above the already-high category average. Music streaming scores 2.9/5, which is 0.98 points above the category average but only mixed in absolute terms—adequate for casual listening but not audiophile-quality. Own-voice comfort at 2.2/5 falls 0.31 points below the category average, which may be noticeable for users sensitive to how their voice sounds. The Enhance Select 500 supports iPhone and Android streaming, hands-free calling, and uses rechargeable batteries. It's a solid choice for those prioritizing clear speech in quieter environments and reliable feedback control. However, buyers seeking better value might consider the Jabra Enhance Select 300 or Lucid Engage, which offer similar sound performance at lower price points. This model has earned HearAdvisor's Expert's Choice Award in both 2023 and 2024.

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