Cearvol Diamond X1 vs Elehear Beyond Pro
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Cearvol Diamond X1
The Cearvol Diamond X1 is a budget-priced OTC hearing aid that earned a B grade with a SoundScore of 3.7/5 in our lab testing, placing it in the top 45% of OTC devices. At $199, it represents an accessible entry point for those exploring hearing amplification. The Diamond X1's standout performance is in music streaming, scoring 4.1/5—a strong result that sits 2.18 points above the OTC category average. This makes it notably capable for users who prioritize audio entertainment through their hearing devices. Feedback handling is also excellent at 4.5/5, meaning users should experience minimal whistling during normal use. However, speech performance presents limitations. Speech in quiet scores a mixed 2.8/5, and speech in noise registers at 1.7/5. While both metrics technically sit above category averages (+0.03 and +0.22 points respectively), they remain low in absolute terms—important context for anyone prioritizing conversation clarity. Own-voice comfort is another weakness, scoring 1.7/5, which is 0.81 points below the category average and may affect how natural users sound to themselves. The Diamond X1 is best suited for budget-conscious consumers who value music streaming quality and aren't heavily reliant on challenging listening environments. Those who prioritize speech understanding in noise or natural own-voice perception may want to consider alternatives in this price range, such as the higher-scoring Elehear Beyond or Apple AirPods Pro 2.
Choice

Elehear Beyond Pro
The Elehear Beyond Pro is a mid-priced OTC hearing aid that earns an A grade with a SoundScore of 4.2/5 in our lab testing, placing it #11 out of 65 OTC devices tested. At $631, this behind-the-ear rechargeable device delivers strong overall performance and has earned HearAdvisor's Expert's Choice Award for both 2024 and 2025. In our testing, the Beyond Pro excels in music streaming, scoring 3.8/5—a solid result that sits 1.88 points above the OTC category average of 1.92/5. Speech clarity in quiet environments also performs well at 3.3/5, which is 0.46 points above average. Speech in noise scores 2.5/5, which is above the category average by 1.00 points, though this remains a mixed result in absolute terms. Feedback handling is excellent at a perfect 5.0/5. The primary limitation is own-voice comfort, which scores 1.2/5—a low result that falls 1.31 points below the category average. Users sensitive to hearing their own voice may find this more noticeable. The device uses closed domes with a medium-power receiver and achieved identical scores in both initial and tuned fit conditions in our testing. The Beyond Pro supports both iPhone and Android streaming with hands-free functionality. It's best suited for users who prioritize streaming audio quality and speech clarity and are less sensitive to own-voice occlusion effects. Within its price range, it competes with devices like the Sony CRE-E10 and Lexie B2 Plus, though some competitors in this tier score higher overall.
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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