Linner Nova Deluxe vs Phonak Audéo EON Sphere
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 available for $299, earning a B grade with a SoundScore of 3.3/5 in HearAdvisor's lab testing. This visible-in-ear style device ranks #53 of 65 OTC hearing aids tested, placing it in the lower tier of its category. In our testing, the Nova Deluxe showed a notable strength in feedback handling, scoring an excellent 5.0/5—0.46 points above the category average. This suggests stable performance without whistling during typical wear. Speech clarity in quiet environments scored a mixed 2.8/5, right at the category average, providing basic conversational support. However, speech understanding in noisy situations scored a low 1.4/5, slightly below average. The device has significant limitations in two areas. Own-voice comfort scored just 0.5/5, which is 2.01 points below the category average, indicating noticeable occlusion effects when speaking. Music streaming scored 0.0/5 in our lab measurements, 1.92 points below average, making this device poorly suited for audio entertainment despite offering iPhone, Android, and hands-free streaming connectivity. At its $299 price point, the Nova Deluxe competes against higher-performing alternatives in the same budget range. This device may suit buyers prioritizing stability and basic speech clarity in quieter settings, but those who stream music or are sensitive to how their own voice sounds should consider other options in this price tier.
Choice

Phonak Audéo EON Sphere
The Phonak Audéo EON Sphere is a premium behind-the-ear prescription hearing aid priced at $4,398. In HearAdvisor's lab testing, it earned a SoundScore of 5.0/5 and an A grade, placing it among the top performers in the prescription hearing aid category. Speech performance stands out as this device's greatest strength. Speech in noise scored an excellent 4.5/5, a full 2.53 points above the category average of 1.96/5—a substantial margin that makes this one of the strongest performers in challenging listening environments. Speech in quiet also performed well at 4.3/5, nearly a full point above the category average. These results suggest the Audéo EON Sphere may be particularly well-suited for users who frequently encounter noisy social settings or group conversations. Music streaming delivered a solid 3.7/5, more than a point above the category average of 2.64/5, indicating above-average audio fidelity for phone-streamed content. Own-voice comfort scored 2.8/5, which sits just above the category average but reflects mixed absolute performance—users sensitive to occlusion effects should discuss this with their hearing care provider. Feedback handling scored an excellent 4.6/5 in absolute terms, though it lands slightly below the category average of 4.71/5. The Audéo EON Sphere represents Phonak's latest premium technology and delivers strong results across most metrics in our standardized testing. It's best suited for users prioritizing speech clarity in difficult listening situations who are prepared for the premium price point.
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