Phonak Audéo EON Sphere vs Signia Pure Charge&Go MaX

The Phonak Audéo EON Sphere is a premium behind-the-ear prescription hearing aid that achieved the top ranking among 39 prescription hearing aids in HearAdvisor's lab testing, earning an A grade with a SoundScore of 5.0/5. In our testing, this device demonstrated exceptional speech clarity performance. Speech-in-noise scored 4.5/5, a strong result that sits 2.38 points above the category average—the standout metric for this product. Speech-in-quiet also performed well at 4.3/5, measuring 0.88 points above average. Music streaming quality was solid at 3.7/5, nearly a full point above the category average of 2.76/5. Feedback handling scored an excellent 4.6/5 in absolute terms, though this falls slightly below the category average by 0.12 points, reflecting the strong feedback management across prescription devices generally. Own-voice comfort measured 2.8/5, which is above the category average but mixed in absolute terms—a consideration for users sensitive to the sound of their own voice. At $4,598, the Phonak Audéo EON Sphere sits in the premium tier of prescription hearing aids. The device is best suited for users who prioritize speech understanding in challenging listening environments and want top-tier performance from their initial fitting. Those seeking similar sound quality at a lower price point may want to consider alternatives like the Phonak Sphere Infinio.

The Signia Pure Charge&Go MaX is a behind-the-ear prescription hearing aid released in 2026 that earns an A grade with a SoundScore of 4.3/5 in HearAdvisor's lab testing. This strong overall performance reflects solid results across key listening scenarios, with particular strengths in own-voice comfort and speech understanding in noisy environments. In our testing, the Pure Charge&Go MaX demonstrated notable advantages over the prescription hearing aid category average. Own-voice comfort scored 1.00 points above the category average at 3.7/5, suggesting effective management of occlusion-related issues that many hearing aid users find bothersome. Speech in noise performance measured 0.65 points above average at 2.8/5—above the category average, but only mixed in absolute terms, indicating room for improvement in the most challenging listening situations. Speech in quiet scored a solid 3.6/5, landing 0.24 points above the category average. Music streaming measured 2.9/5, slightly above average but mixed in absolute terms. Feedback handling scored an excellent 4.6/5 in absolute terms, though this fell 0.12 points below the category average of 4.72/5, reflecting the generally strong feedback control across modern prescription devices. The device showed meaningful improvement from initial to tuned fitting, with the normalized score rising from 4.2/5 to 4.6/5 after professional adjustment. This suggests that working with a hearing care professional to optimize settings can unlock additional performance, particularly for speech understanding. The Pure Charge&Go MaX appears well-suited for users who prioritize natural own-voice quality and improved conversation clarity in moderately noisy settings.