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

Lexie Lumen
The Lexie Lumen is a budget-priced OTC hearing aid available for $299, earning a B grade with a SoundScore of 3.4/5 in our lab testing. This behind-the-ear device ranks #40 among 65 OTC hearing aids tested, placing it in the top 60% of its category. In our testing, the Lumen demonstrates mixed speech performance. Speech in quiet scores 2.5/5, falling 0.24 points below the category average. Speech in noise performs better at 2.0/5, which is 0.55 points above the category average—though this remains mixed in absolute terms. Where the device excels is feedback handling, achieving a perfect 5.0/5, which is 0.46 points above the already-strong category average of 4.54/5. The most significant limitation is music streaming, which scores 0.0/5—a full 1.92 points below the category average. Users who prioritize streaming audio from their phones should look elsewhere. The device uses disposable batteries rather than rechargeables. At this price point, buyers face a competitive landscape. Several alternatives in the same price range deliver substantially higher scores, with some reaching into the 4.2-4.7 range. The Lexie Lumen may suit budget-conscious consumers who prioritize stable, feedback-free amplification over streaming capabilities and don't require top-tier speech clarity. However, those willing to explore other options at similar prices may find significantly better overall performance.
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