Fortell AI Hearing Aids vs Phonak Audéo EON Sphere

The Fortell AI Hearing Aids are a premium prescription behind-the-ear device priced at $6,800, earning an A grade with a SoundScore of 6.0/5 in HearAdvisor lab testing—an exceptional result that places this device at the top of the prescription hearing aid category. Speech performance is where the Fortell AI truly distinguishes itself. Speech in noise scores an outstanding 6.0/5, a full 3.89 points above the category average of 2.11/5—the kind of margin that represents a meaningful difference in challenging listening environments like restaurants or group conversations. Speech in quiet also excels at 4.6/5, sitting 1.20 points above the category average. Music streaming performs strongly at 4.2/5, coming in 1.44 points above average for the category. The device does have a notable limitation: own-voice comfort scores just 1.5/5, falling 1.20 points below the category average. This low absolute score suggests wearers may notice occlusion effects when speaking. Feedback handling is excellent at 4.8/5, essentially matching the category average. Best suited for: Users who prioritize understanding speech in difficult listening situations and value streaming quality, and who can tolerate potential own-voice occlusion. Given the premium price point, buyers should weigh whether the exceptional speech-in-noise performance justifies the investment compared to alternatives like the Oticon Intent or Oticon Zeal, which offer strong performance at lower price points.

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.