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Product Comparison

Linner Mercury vs Lucid Enrich Pro

Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Uses Official HearAdvisor Lab Data
Linner Mercury Hero
LinnerSoundGrade B

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.

Lucid Enrich Pro Hero
LucidSoundGrade B

Lucid Enrich Pro

The Lucid Enrich Pro is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.7/5 in our lab testing. At $200, it ranks #31 of 65 OTC hearing aids tested, placing it in the top 46% of the category. This visible-in-ear device delivers its strongest performance in speech-in-quiet scenarios, scoring 3.8/5—a solid result that sits 0.98 points above the OTC category average. Feedback handling is also strong at 4.0/5 in absolute terms, though it falls 0.54 points below the category average. Speech-in-noise performance scores 1.7/5, which is above the category average by 0.19 points but remains low in absolute terms, suggesting limited benefit in challenging listening environments. Key limitations include own-voice comfort, which scores a mixed 2.0/5 (0.51 points below category average), and music streaming, which scores 0.0/5—significantly below the category average of 1.92/5. The device uses disposable batteries rather than rechargeables. The Lucid Enrich Pro may suit budget-conscious consumers who primarily need help hearing speech in quieter settings and don't require music streaming functionality. Those who frequently encounter noisy environments or value streaming audio should consider alternatives in this price range, such as the higher-scoring Elehear Beyond or Apple AirPods Pro 2.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Linner Mercury2.2
Lucid Enrich Pro3.8
Speech in noiseNew
Linner Mercury1.0
Lucid Enrich Pro1.7
Own voice
Linner Mercury1.6
Lucid Enrich Pro2.0
Feedback handling
Linner Mercury4.7
Lucid Enrich Pro4.0
Music streaming
Linner Mercury0.0
Lucid Enrich Pro0.0
Overall fit score
Linner Mercury3.0
Lucid Enrich Pro3.7

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Linner MercuryLucid Enrich Pro
Ear CouplingPower Dome
Ear CouplingClosed Dome