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Product Comparison

Linner Mercury vs RxEars Rxi

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.

Expert Choice
Expert
Choice
RxEars Rxi Hero
RxEarsSoundGrade A

RxEars Rxi

The RxEars Rxi is a budget-priced prescription hearing aid in an invisible-in-ear style, earning an A grade with a SoundScore of 4.1/5 in our lab testing. At $499, it represents one of the most affordable options in the prescription hearing aid category while still delivering solid overall performance. Speech clarity is a notable strength for this device. In quiet listening environments, the Rxi scores 4.3/5, which is 0.97 points above the category average—a strong result that should benefit users in conversational settings at home or in calm environments. Speech understanding in noisy conditions scores 2.1/5, slightly above the category average by 0.16 points, though this remains mixed in absolute terms and may present challenges in demanding acoustic situations like busy restaurants. Feedback handling is excellent at 4.7/5, essentially matching the category average and indicating reliable stability during daily wear. However, the Rxi shows notable limitations in other areas. Own-voice comfort scores 1.6/5, falling 1.15 points below the category average, which may result in a hollow or boomy perception of your own voice. Music streaming is not supported, scoring 0.0/5—a significant gap of 2.64 points below category average that buyers should consider if streaming audio matters to them. The RxEars Rxi is best suited for budget-conscious consumers who prioritize speech clarity in quieter environments and don't require streaming capabilities. Its invisible form factor and disposable battery design offer convenience, though those seeking better own-voice comfort or music features should explore alternatives.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Linner Mercury2.2
RxEars Rxi4.3
Speech in noiseNew
Linner Mercury1.0
RxEars Rxi2.1
Own voice
Linner Mercury1.6
RxEars Rxi1.6
Feedback handling
Linner Mercury4.7
RxEars Rxi4.7
Music streaming
Linner Mercury0.0
RxEars Rxi0.0
Overall fit score
Linner Mercury3.0
RxEars Rxi4.1

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Linner MercuryRxEars Rxi
Ear CouplingPower Dome
Ear CouplingClosed Dome