Lexie B2 Plus vs Linner Mercury
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Lexie B2 Plus
The Lexie B2 Plus is a mid-priced OTC hearing aid that earns an A grade with a SoundScore of 4.4/5, placing it in the top 9% of OTC devices tested in our lab. At $899, this behind-the-ear style device delivers strong performance in several key areas while showing some limitations worth considering. In our testing, the Lexie B2 Plus excels in speech clarity for quiet environments, scoring a strong 4.3/5—significantly above the OTC category average by 1.49 points. Own-voice comfort is a particular standout at 4.8/5, well above the category average by 2.29 points, meaning wearers are unlikely to experience the hollow or booming quality of their own voice that can make some hearing aids uncomfortable. Speech in noise performance scores 2.1/5, which is above the OTC category average by 0.58 points but remains mixed in absolute terms—typical for this device class. Music streaming scores 2.6/5, similarly above average by 0.68 points while remaining modest overall. Feedback handling at 2.8/5 falls below the category average by 1.74 points, which may require attention during phone calls or when wearing hats. The Lexie B2 Plus is a solid choice for users prioritizing speech clarity in quieter settings and natural own-voice comfort. It features rechargeable batteries and streaming compatibility with both iPhone and Android devices. This two-time Expert's Choice Award winner (2023, 2024) competes against devices like the higher-scoring Sony CRE-E10 in its price range, but offers a compelling balance of comfort and core speech performance.

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