Oticon Zeal vs Sony CRE-C10
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

Sony CRE-C10
The Sony CRE-C10 is an invisible-in-ear OTC hearing aid priced at $798, earning an A grade with a SoundScore of 4.2/5 in our lab testing. This places it at #12 of 65 devices in the OTC category, putting it in the top 17% of tested OTC hearing aids. Speech performance is where this device truly shines. Speech in quiet scores an excellent 4.5/5, a full 1.71 points above the category average of 2.79/5. Speech in noise performance at 2.9/5 is mixed in absolute terms, though still 1.39 points above the category average of 1.48/5. These speech clarity strengths have contributed to the CRE-C10 earning Expert's Choice recognition in both 2023 and 2024. The device does have notable limitations. Music streaming scores 0.0/5, which is 1.92 points below the category average—this device is not designed for audio entertainment. Feedback handling scores a solid 3.5/5 in absolute terms, though this is 1.04 points below the category average of 4.54/5. Own-voice comfort is mixed at 2.6/5, essentially matching the category average. The Sony CRE-C10 is best suited for consumers who prioritize speech understanding over streaming capabilities and want a discreet, invisible-in-ear form factor. Those who frequently stream music or media should consider alternatives like the Sony CRE-E10, which scores higher overall in this price range.
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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