Lucid Engage vs Phonak Sphere Infinio
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Lucid Engage
The Lucid Engage is a mid-priced behind-the-ear OTC hearing aid that earns an A grade with a SoundScore of 4.2/5 in our lab testing. Priced at $850, it ranks #14 among 65 OTC hearing aids tested, placing it in the top 20% of its category. Speech performance is a notable strength. Speech in quiet scores a strong 4.3/5, which is 1.46 points above the OTC category average of 2.79/5. Speech in noise comes in at 2.4/5—above the category average by 0.94 points, though only mixed in absolute terms at 2.4/5. Own-voice comfort is solid at 3.6/5, exceeding the category average by 1.09 points. The Engage does have limitations. Feedback handling scores 2.6/5, falling 1.94 points below the category average of 4.54/5. Music streaming is mixed at 2.4/5, though still 0.48 points above the OTC average. These results suggest the device prioritizes speech clarity over other use cases. This rechargeable BTE supports both iPhone and Android streaming. It received HearAdvisor's Expert's Choice Award in both 2023 and 2024. The Lucid Engage is best suited for consumers who prioritize conversational clarity and want an A-grade performer without prescription-level prices, though those sensitive to feedback or who stream music frequently may want to consider alternatives like the higher-scoring Sony CRE-E10 or Yeasound RIC800 in the same price range.
Choice

Phonak Sphere Infinio
The Phonak Sphere Infinio is a premium behind-the-ear prescription hearing aid released in 2024, priced at $4,898. In our lab testing, it earned an A grade with a SoundScore of 5.0/5, placing it at #2 among 39 prescription hearing aids tested—within the top 3% of its category. The standout performance comes in speech clarity. Speech in noise scores an excellent 4.7/5, a remarkable 2.59 points above the category average of 2.11/5. Speech in quiet also impresses at 4.5/5, sitting 1.07 points above average. For anyone who struggles to follow conversations in restaurants, gatherings, or busy environments, this device delivers measurably superior intelligibility compared to most alternatives we've tested. Music streaming quality is strong at 4.0/5, exceeding the category average by 1.24 points—a meaningful advantage for users who value audio fidelity when streaming from phones. However, own-voice comfort is mixed at 2.3/5, falling 0.40 points below the category average, which may affect how natural your own speech sounds. Feedback handling, while solid in absolute terms at 3.6/5, sits 1.12 points below the category average of 4.72/5. The Sphere Infinio is best suited for users prioritizing exceptional speech understanding, particularly in challenging noise environments, and who are willing to invest at the premium tier. Those especially sensitive to own-voice quality or requiring maximum feedback stability may want to compare alternatives like the similarly-priced Oticon Intent or the lower-priced Phonak Audéo EON Sphere.
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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