Linner Nova Earbud vs Phonak Sphere Infinio Ultra

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.

The Phonak Sphere Infinio Ultra is a premium behind-the-ear prescription hearing aid priced at $4,898. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.9/5, placing it in the top 3% of the 36 prescription hearing aids tested and ranking #2 in its category. This device delivers exceptional speech performance in our testing. Speech in noise scored an excellent 4.5/5, a remarkable 2.55 points above the category average of 1.96/5—one of the largest margins we've measured in this critical metric. Speech in quiet also performed strongly at 4.3/5, exceeding the category average by 1.00 point. These results suggest the Sphere Infinio Ultra prioritizes speech clarity across challenging listening environments. Music streaming quality is solid at 3.3/5, sitting 0.66 points above the category average. Own voice comfort scored 2.8/5, which is above the category average but remains mixed in absolute terms—listeners sensitive to occlusion may notice this limitation. Feedback handling measured 4.2/5, which is strong in absolute terms though 0.51 points below the category average of 4.71/5. The Sphere Infinio Ultra is best suited for users who prioritize speech understanding, particularly in noisy environments, and who are prepared to invest in premium technology. Those seeking the highest feedback stability or improved own-voice comfort may want to compare alternatives, though this device's speech performance stands out as a category leader.