Hear.com Horizon Go IX vs Phonak Sphere Infinio Ultra

The Hear.com Horizon Go IX is a premium prescription behind-the-ear hearing aid released in 2024, priced at $6,500. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.4/5, ranking #19 among 39 prescription hearing aids tested. Speech performance is a clear strength for the Horizon Go IX. It scores 4.0/5 in speech-in-quiet conditions—0.64 points above the category average—delivering strong audibility in conversational settings. Speech-in-noise performance also exceeds the category average by 0.46 points, though at 2.6/5 the absolute score remains mixed, meaning challenging listening environments may still pose difficulties. Own-voice comfort is the device's most notable weakness, scoring just 1.8/5—a low result that falls 0.90 points below the category average. Users sensitive to how their own voice sounds may find this limiting. Feedback handling scores 4.4/5, which is strong in absolute terms, though slightly below the category average of 4.72/5. Music streaming performance is essentially average at 2.7/5. At this price point, shoppers face stiff competition. Several alternatives in the same premium tier—including the Phonak Sphere Infinio, Oticon Intent, and Widex Allure RIC 440—deliver higher overall scores. Devices like the Rexton Reach R-Li T80 at Costco offer comparable or better sound performance at lower prices. The Horizon Go IX is best suited for users who prioritize speech clarity and have access to this product through hear.com's network, but those flexible on brand should compare alternatives before committing.

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 5% of the 39 prescription hearing aids tested and ranking #3 in the category. This device demonstrates exceptional speech performance in our testing. Speech in noise scored 4.5/5—an excellent result that measures 2.40 points above the category average of 2.11/5. Speech in quiet also performed strongly at 4.3/5, which is 0.92 points above the category average. These results suggest the Sphere Infinio Ultra may particularly benefit users who frequently navigate challenging listening environments like restaurants or group conversations. Music streaming delivered a solid 3.3/5, measuring 0.54 points above category average. Own-voice comfort scored 2.8/5, which is above the category average by 0.10 points but remains mixed in absolute terms. Feedback handling measured 4.2/5—strong in absolute terms, though 0.52 points below the category average of 4.72/5. The Sphere Infinio Ultra is best suited for users seeking top-tier speech clarity who prioritize performance in noisy environments and are prepared to invest at the premium price tier. Those seeking similar sound quality at a lower price point may also consider the Phonak Sphere Infinio, which scored 4.98/5 in our testing.