Cearvol Diamond X1 vs JLab Hear OTC
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 available for $199, earning a B grade with a SoundScore of 3.7/5 in our lab testing. This visible-in-ear style device ranks #30 among 65 OTC hearing aids tested, placing it in the top 45% of its category. The Diamond X1 delivers a mixed performance profile with one notable strength: music streaming. With a score of 4.1/5, it performs 2.18 points above the category average—a substantial margin that makes it appealing for users who value audio entertainment through their hearing aids. Feedback handling is excellent at 4.5/5, providing stable performance during typical daily movements. Both iPhone and Android streaming are supported with rechargeable batteries for convenience. Speech performance presents a more modest picture. Speech in quiet scores 2.8/5, which is above the category average but only mixed in absolute terms. Speech in noise measures 1.7/5—above the category average of 1.48/5, though still low overall. Own-voice comfort is a weakness at 1.7/5, falling 0.81 points below the category average, which may cause your own voice to sound unnatural or boomy. The Diamond X1 is best suited for budget-conscious consumers who prioritize music and media streaming over maximum speech clarity. Those seeking stronger speech performance in challenging listening environments may want to consider higher-scoring alternatives in this price range, such as the Elehear Beyond or Apple AirPods Pro 2.

JLab Hear OTC
The JLab Hear OTC is a budget-friendly OTC hearing aid priced at $100, earning a B grade with a SoundScore of 3.6/5 in HearAdvisor's lab testing. This visible-in-ear device ranks #36 of 65 OTC hearing aids tested, placing it in the top 54% of its category. In our testing, the JLab Hear OTC shows a distinctive performance profile with clear strengths and weaknesses. Music streaming stands out as exceptional, scoring 4.6/5—a remarkable 2.68 points above the category average. Feedback handling also performs excellently at 5.0/5, providing stable amplification without whistling during our standardized challenge motions. These strengths make it particularly well-suited for users who prioritize streaming audio content. However, speech performance presents limitations. Speech in quiet scores 2.1/5, which is 0.67 points below the category average of 2.79. Speech in noise is more constrained at 1.0/5, falling 0.46 points below average. Own-voice comfort also scores low at 1.8/5, which is 0.71 points below the category norm. These results suggest the device may be less effective for primary speech amplification needs compared to alternatives in its price range. The JLab Hear OTC includes rechargeable batteries and supports both iPhone and Android streaming with hands-free functionality. At this price point, competitors like the Elehear Beyond (4.36/5) and Apple AirPods Pro 2 (4.06/5) offer stronger overall sound performance. This device may appeal most to budget-conscious users who value excellent streaming quality and feedback stability over speech enhancement capabilities.
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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)
Audio scenes
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit