Linner Mars vs Sony CRE-C10

The Linner Mars is a budget-priced OTC hearing aid released in 2023, earning a B grade with a SoundScore of 3.2/5 in our lab testing. At $399, it falls in the lower price tier of the OTC category but ranks #55 of 65 OTC devices tested, placing it in the bottom 17% of its category. This visible-in-ear device presents a mixed performance profile with notable strengths and significant weaknesses. Music streaming is a standout feature, scoring an excellent 4.6/5—a full 2.68 points above the category average. Feedback handling is also excellent at 5.0/5, meaning users can expect stable performance without whistling during normal use. However, speech clarity presents challenges. Speech in quiet scores a low 1.9/5, falling 0.85 points below the category average. Speech in noise performance is particularly limited at 1.0/5, sitting 0.46 points below average. Own-voice comfort also scores low at 1.0/5, which is 1.51 points below the category average—users may notice their own voice sounding unnatural or boomy. The Linner Mars may suit budget-conscious consumers who prioritize music and media streaming over speech understanding in challenging environments. However, buyers seeking better speech performance should consider alternatives like the Elehear Beyond or Apple AirPods Pro 2, which offer stronger overall sound scores in the same price range.

The Sony CRE-C10 is a mid-priced OTC hearing aid at $798 that earns an A grade with a SoundScore of 4.2/5, ranking #12 among 65 OTC hearing aids tested. This invisible-in-ear style device uses disposable batteries and offers discreet amplification for those seeking a nearly undetectable option. In our lab testing, the CRE-C10 demonstrates excellent speech clarity in quiet environments, scoring 4.5/5—a full 1.71 points above the category average. Speech in noise performance is above average at +1.39 points versus category peers, though at 2.9/5 it remains mixed in absolute terms. This makes the device well-suited for everyday conversations but potentially challenging in very noisy settings. The most significant limitation is music streaming, which scored 0.0/5—well below the category average. Users who prioritize phone audio streaming or music listening should consider alternatives. Feedback handling is solid at 3.5/5, though it falls 1.04 points below the category average. Own-voice comfort scored 2.6/5, roughly matching the category average. The Sony CRE-C10 is best suited for users who prioritize speech understanding and discretion over streaming capabilities. It has earned HearAdvisor's Expert's Choice Award in both 2023 and 2024. Competitors in this price range include the higher-scoring Sony CRE-E10 and Lexie B2 Plus, which may offer additional features worth comparing.