Cearvol Diamond X1 vs Resound Vivia 9 60S microRIE

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.

The ReSound Vivia 9 60S microRIE is a premium prescription behind-the-ear hearing aid released in 2025, currently available at $3,798. In our lab testing, it earned a B grade with a SoundScore of 3.9/5, ranking #29 of 39 prescription hearing aids tested. This device shows a mixed performance profile. Its standout strength is own-voice comfort, scoring 3.4/5—a solid result that sits 0.70 points above the category average. Speech clarity in quiet environments also performs at category average with a score of 3.4/5. Feedback handling is strong in absolute terms at 4.2/5, though this falls 0.52 points below the category average, reflecting the high bar set by competing prescription devices. The Vivia 9's most notable weakness is speech understanding in noisy environments, where it scored just 1.1/5—a low result that trails the category average by 0.96 points. Music streaming performance is mixed at 2.6/5, sitting slightly below average. These limitations are worth considering given the premium price positioning. For listeners who prioritize comfortable own-voice perception and primarily encounter quieter listening situations, the Vivia 9 may be suitable. However, those frequently in challenging noise environments should note that several alternatives in this price range—including the Phonak Sphere Infinio and Oticon Intent—deliver stronger overall performance in our testing. Budget-conscious shoppers may also find comparable sound quality at lower price points with options like the Jabra Enhance Pro 20 at Costco.