Resound Vivia 9 60S microRIE vs Sennheiser All-Day Clear Slim

The Resound Vivia 9 60S microRIE is a premium prescription behind-the-ear hearing aid released in 2025, currently available at $3,798. In HearAdvisor's lab testing, it earned a B grade with a SoundScore of 3.9/5, ranking #27 of 36 prescription hearing aids tested. This device demonstrates a mixed performance profile in our testing. Own-voice comfort is a notable strength, scoring 3.4/5—a solid result that sits 0.65 points above the category average, which may appeal to users sensitive to the hollow or boomy sound of their own speech. Speech clarity in quiet environments also performs well at 3.4/5, slightly above the category average. However, the Vivia 9 shows significant limitations in challenging listening situations. Speech in noise scored just 1.1/5, falling 0.81 points below the prescription hearing aid average—a substantial gap that suggests difficulty in restaurants, group conversations, or other noisy environments. Feedback handling, while strong in absolute terms at 4.2/5, still lands 0.51 points below what we typically see from prescription devices. Music streaming quality is mixed at 2.6/5, essentially matching the category average. At this premium price point, the Vivia 9 faces stiff competition. Several same-priced alternatives, including the Phonak Sphere Infinio and Oticon Intent, achieved notably higher overall scores in our testing. Consumers prioritizing noise performance may want to explore these options or consider lower-priced alternatives like the Sennheiser All Day Clear that delivered stronger overall results in our lab.

The Sennheiser All-Day Clear Slim is a premium behind-the-ear OTC hearing aid priced at $1,499, earning an A grade with a SoundScore of 4.1/5 in our lab testing. This places it in the top 23% of the OTC hearing aid category, ranking #16 among 65 tested devices. In our testing, the All-Day Clear Slim demonstrates notable strengths in music streaming, scoring 3.8/5—a solid result that sits 1.88 points above the category average. This makes it one of the stronger performers for users who prioritize audio quality when streaming from their phone. Feedback handling is excellent at 5.0/5, measuring 0.46 points above the category average, meaning users can expect stable performance without whistling during typical daily activities. Speech clarity in quiet environments is solid at 3.6/5, coming in 0.85 points above the category average. However, speech in noise performance is low at 1.5/5, matching the category average—a common limitation across OTC devices. Own-voice comfort scores 1.9/5, which is 0.61 points below the category average, suggesting some users may notice their own voice sounds different or hollow. The All-Day Clear Slim includes rechargeable batteries and supports streaming to both iPhone and Android devices with hands-free functionality. At its price point, alternatives like the Lucid Tala and Audicus Omni 2 offer higher overall scores, though the Sennheiser may appeal to those who value the brand's audio heritage and prioritize music streaming quality over speech-in-noise performance.