Oticon Zeal vs Sennheiser Conversation Clear Plus
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Oticon Zeal
The Oticon Zeal is a premium prescription hearing aid in the invisible-in-ear style, carrying an A grade with a SoundScore of 4.7/5 in our lab testing. Priced at $4,798, it ranks #6 among 39 prescription hearing aids tested, placing it in the top 13% of its category. Speech performance is where the Zeal truly excels. Our testing measured an excellent 4.9/5 for speech in quiet—1.48 points above the category average—making it one of the strongest performers for everyday conversations. Speech in noise also scores a solid 3.0/5, sitting 0.93 points above the category average of 2.11/5, indicating reliable performance in moderately challenging listening environments. Music streaming quality registers at a solid 3.3/5, which is 0.54 points above the category average. However, the Zeal shows some limitations in other areas. Own-voice comfort scores a mixed 2.0/5, falling 0.70 points below the category average—something to consider if own-voice naturalness is a priority. Feedback handling measures at 3.3/5, which is solid in absolute terms but sits 1.42 points below the category average of 4.72/5. The Oticon Zeal is best suited for wearers who prioritize exceptional speech clarity and want a discreet, invisible-in-ear form factor. Those especially sensitive to feedback or own-voice effects may want to discuss these trade-offs with their hearing care provider during fitting.
Choice

Sennheiser Conversation Clear Plus
The Sennheiser Conversation Clear Plus is a premium amplification product priced at $850, earning an A grade with a SoundScore of 4.0/5 in our lab testing. This visible-in-ear device ranks #1 among the 8 amplification products we've tested, performing well above the category average of 3.24/5. In our testing, the Conversation Clear Plus delivered standout performance in music streaming and feedback handling, both scoring an excellent 5.0/5. Speech-in-noise performance was solid at 3.1/5, measuring 1.74 points above the category average—a notable advantage for an amplification product. Speech-in-quiet scored 2.6/5, which is above the category average but mixed in absolute terms. The device's primary weakness is own-voice comfort, scoring just 0.6/5—2.04 points below the category average. Users who are sensitive to hearing their own voice amplified may find this challenging. The device supports both iPhone and Android streaming, offers rechargeable batteries, and includes hands-free functionality. The Conversation Clear Plus is best suited for consumers who prioritize exceptional music streaming quality and solid performance in noisy environments, and who can tolerate some own-voice occlusion. It has earned HearAdvisor's Expert's Choice Award in both 2023 and 2024. Those seeking similar sound quality at a lower price point may also consider alternatives like the Apple AirPods Pro 2.
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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