Linner Nova Earbud 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 Earbud
The Linner Nova Earbud is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.5/5 in our lab testing. Priced at $299, this visible-in-ear device offers an interesting performance profile that sets it apart from typical hearing aids in its category. The Nova Earbud's standout strength is its excellent music streaming quality, scoring 4.5/5—a full 2.58 points above the OTC category average. This makes it one of the better options for users who prioritize audio entertainment through their hearing devices. Feedback handling is equally impressive at 5.0/5, meaning users can expect stable performance without the whistling that plagues some competitors. However, the device shows significant limitations in core hearing aid functions. Speech in quiet environments scores a mixed 2.1/5, falling 0.71 points below the category average. Speech in noise performance is low at 1.3/5, slightly below average for the category. Own-voice comfort is notably weak at 0.5/5, sitting 2.01 points below the category average—users may find their own voice sounds unnatural or boomy. The Linner Nova Earbud is best suited for budget-conscious consumers who value music streaming and stable feedback performance over maximum speech clarity. Those prioritizing speech understanding, particularly in noisy environments, may want to consider alternatives like the higher-scoring Elehear Beyond or Apple AirPods Pro 2 in the same price range.
Choice

Phonak Sphere Infinio
The Phonak Sphere Infinio is a premium prescription behind-the-ear hearing aid released in 2024, priced at $4,898. In HearAdvisor's lab testing, it achieved a SoundScore of 5.0/5 and an A grade, ranking #1 among 36 prescription hearing aids tested. This device delivers exceptional speech performance, particularly in challenging listening environments. Speech in noise scored an excellent 4.7/5, measuring 2.74 points above the category average—a substantial margin that sets it apart from competitors. Speech in quiet also performed strongly at 4.5/5, sitting 1.15 points above average. Music streaming earned a strong 4.0/5, exceeding the category average by 1.36 points. The Sphere Infinio does show some trade-offs. Feedback handling scored a solid 3.6/5 in absolute terms, though this falls 1.11 points below the category average of 4.71/5. Own-voice comfort scored a mixed 2.3/5, slightly below the category average. These are areas where some competing premium devices perform better. This hearing aid is best suited for those who prioritize speech clarity, especially in noisy environments like restaurants or social gatherings. The behind-the-ear style offers rechargeable batteries and streaming compatibility with both iPhone and Android devices. Among premium-priced competitors like the Oticon Intent (4.85/5) and Oticon Real (4.75/5), the Sphere Infinio leads in overall sound performance, earning HearAdvisor's Expert's Choice Award for 2024 and 2023.
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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
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit