Cearvol Diamond X1 vs Vivtone Xpure Hearing Aid
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.

Vivtone Xpure Hearing Aid
The Vivtone Xpure is a behind-the-ear OTC hearing aid priced at $549, earning a B grade with a SoundScore of 3.1/5 in HearAdvisor's lab testing. This places it in the lower tier of the OTC category, ranking #57 of 65 devices tested. The Xpure demonstrates a notably uneven performance profile. Its standout strength is music streaming, scoring an excellent 4.4/5—a remarkable 2.48 points above the category average. This makes it one of the better choices for users who prioritize audio entertainment through their hearing aids. Speech in quiet performs just slightly above category average at 2.9/5, though this remains mixed in absolute terms. However, the device shows significant weaknesses in several areas. Own-voice comfort scores a low 0.8/5, falling 1.71 points below the category average—a notable concern for users sensitive to how their own voice sounds. Speech in noise at 1.2/5 sits below the category average, and feedback handling, while solid at 3.3/5, still falls 1.24 points below what typical OTC devices achieve. The Xpure improves meaningfully with professional tuning, jumping from a normalized Initial Score of 3.0/5 to a Tuned Score of 3.5/5. Shoppers prioritizing music streaming may find value here, but those seeking balanced speech performance or natural own-voice quality should consider alternatives like the Linner Nova Earbud or Nuheara IQBuds Max, which offer higher overall scores at lower prices.
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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