Elehear Alpha vs Sony CRE-C20
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Elehear Alpha
The Elehear Alpha is a budget-priced OTC hearing aid that earned a B grade with a SoundScore of 3.4/5 in HearAdvisor's lab testing. At $299, this behind-the-ear device sits in the lower price tier of the OTC category and delivers a performance profile with notable strengths and weaknesses. The Alpha's standout feature is its music streaming quality, scoring a strong 4.2/5—a full 2.28 points above the OTC category average. This makes it an unusually capable choice for users who prioritize audio entertainment alongside hearing assistance. Feedback handling is also excellent at 5.0/5, meaning you're unlikely to experience whistling or squealing during normal use. However, speech clarity presents challenges. Speech in quiet scores a mixed 2.1/5, falling 0.73 points below the category average, while speech in noise is low at 1.0/5, sitting 0.48 points below average. Own-voice comfort is particularly weak at 0.7/5, measuring 1.81 points below the category average—users may notice their own voice sounds unnatural or boomy. Within the same price range, several alternatives offer stronger overall performance, including the Elehear Beyond (4.36/5), Apple AirPods Pro 2 (4.06/5), and Zepp Clarity Omni (3.88/5). The Alpha may appeal to budget-conscious users who primarily want reliable music streaming and stable feedback performance, but those prioritizing speech understanding should consider higher-scoring options.

Sony CRE-C20
The Sony CRE-C20 is an invisible-in-ear OTC hearing aid priced at $999, earning a B grade with a SoundScore of 3.6/5 in our lab testing. This mid-priced device offers a discreet form factor with rechargeable batteries, positioning it in the upper tier of the OTC market. In our testing, the CRE-C20 demonstrates notable strengths in speech clarity. Speech in quiet scores 4.1/5—a strong result that sits 1.33 points above the OTC category average. Speech in noise performance reaches 2.7/5, which is 1.24 points above the category average, though only mixed in absolute terms. Own voice comfort scores 2.9/5, slightly above average for the category at +0.39 points. The device shows significant limitations in other areas. Music streaming scored 0.0/5, falling 1.92 points below the category average—this invisible-in-ear design does not support audio streaming functionality. Feedback handling registers at 3.9/5, which is solid in absolute terms, though 0.64 points below the category average of 4.54/5. The CRE-C20 demonstrates meaningful improvement with proper adjustment. The normalized Initial Score of 3.4/5 improves to 4.2/5 when tuned, suggesting users who invest time in optimization will see better results. Within its price range, alternatives like the Sony CRE-E10 (4.69/5) and Lexie B2 Plus (4.43/5) score higher overall. The CRE-C20 is best suited for users prioritizing discretion and speech clarity who don't need music streaming capabilities.
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)
Audio scenes
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit