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

Linner Nova Deluxe
The Linner Nova Deluxe is a budget-priced OTC hearing aid with a visible in-ear style, earning a B grade with a SoundScore of 3.3/5 in our lab testing. At $299, it sits in the entry-level price tier for the OTC category. In our standardized testing, the Nova Deluxe showed mixed results across performance metrics. Its standout strength is excellent feedback handling, scoring a perfect 5.0/5—0.46 points above the category average. This means users can expect stable performance without whistling during typical daily activities. Speech clarity in quiet environments scored 2.8/5, matching the category average, while speech in noise measured 1.4/5, slightly below average at -0.06 points. The device has notable limitations in comfort and entertainment features. Own-voice comfort scored just 0.5/5, falling 2.01 points below the category average—users may notice their voice sounds unnatural or boomy. Music streaming scored 0.0/5, which is 1.92 points below average, indicating this device is not suitable for those who prioritize audio entertainment through their hearing aids. The Linner Nova Deluxe ranks #53 of 65 OTC hearing aids tested. Buyers seeking better overall performance in this price range may want to consider alternatives like the Elehear Beyond (4.34/5) or Apple AirPods Pro 2 (4.04/5). However, for users primarily focused on speech clarity in quieter settings who don't need streaming capabilities, the Nova Deluxe offers solid feedback stability at an accessible price point.
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