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

Otofonix Elite
The Otofonix Elite is a behind-the-ear amplification product priced at $249, earning a C grade with a SoundScore of 2.6/5 in HearAdvisor's lab testing. Released in 2016, this budget amplifier ranks #8 of 8 devices in the Amplification Product category. In our testing, the Elite demonstrates one clear strength: excellent feedback handling at 5.0/5, which is 0.72 points above the category average. This means users are unlikely to experience whistling or squealing during normal use. However, other performance metrics tell a different story. Speech clarity is a significant weakness. Speech in quiet scores just 1.0/5, which is 1.11 points below the category average, while speech in noise also scores 1.0/5, falling 0.37 points below average. Own-voice comfort is particularly low at 0.1/5 in the tuned configuration—2.54 points below the category average—meaning users may find their own voice sounds boomy or unnatural. Music streaming is not supported, scoring 0.0/5. At this price point, consumers should note that alternatives like the Audien Hearing Atom offer better sound performance at a lower price. The Otofonix Elite may appeal to those prioritizing feedback-free operation above all else, but its limited speech benefit and comfort challenges make it difficult to recommend for most users seeking improved hearing clarity.
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)
Audio scenes
Recorded samples (Tuned)
Fitting configuration for tuned fit