Phonak Sphere Infinio vs Rexton Reach R-Li T80 at Costco

The Phonak Sphere Infinio is a premium prescription behind-the-ear hearing aid released in 2024, priced at $4,898. In HearAdvisor's lab testing, it achieved a SoundScore of 5.0/5 and an A grade, ranking #1 among 36 prescription hearing aids tested. This device delivers exceptional speech performance, particularly in challenging listening environments. Speech in noise scored an excellent 4.7/5, measuring 2.74 points above the category average—a substantial margin that sets it apart from competitors. Speech in quiet also performed strongly at 4.5/5, sitting 1.15 points above average. Music streaming earned a strong 4.0/5, exceeding the category average by 1.36 points. The Sphere Infinio does show some trade-offs. Feedback handling scored a solid 3.6/5 in absolute terms, though this falls 1.11 points below the category average of 4.71/5. Own-voice comfort scored a mixed 2.3/5, slightly below the category average. These are areas where some competing premium devices perform better. This hearing aid is best suited for those who prioritize speech clarity, especially in noisy environments like restaurants or social gatherings. The behind-the-ear style offers rechargeable batteries and streaming compatibility with both iPhone and Android devices. Among premium-priced competitors like the Oticon Intent (4.85/5) and Oticon Real (4.75/5), the Sphere Infinio leads in overall sound performance, earning HearAdvisor's Expert's Choice Award for 2024 and 2023.

The Rexton Reach R-Li T80, available exclusively at Costco for $1,500, is a behind-the-ear prescription hearing aid that earned an A grade and ranks #11 of 36 devices in its category in our lab testing. This 2024 release earned HearAdvisor's Expert's Choice Award, reflecting its strong overall performance. In our standardized testing, the Reach R-Li T80 delivered a SoundScore of 4.6/5, placing it in the top 28% of prescription hearing aids. Speech clarity stands out as a particular strength, scoring 3.9/5 in quiet environments—0.54 points above the category average. Own-voice comfort also impressed at 3.6/5, a full 0.85 points above average, suggesting wearers may experience less of the "talking in a barrel" sensation that can occur with hearing aids. Feedback handling is excellent at 4.8/5. Speech-in-noise performance scores 2.5/5, which is above the category average by 0.54 points but remains mixed in absolute terms—a common challenge across prescription devices. Music streaming similarly scores 2.7/5, slightly above average but not a standout feature. This device supports both iPhone and Android streaming, offers hands-free functionality, and uses rechargeable batteries. For Costco members seeking a prescription hearing aid with reliable speech clarity, strong own-voice comfort, and excellent feedback control at a mid-tier price point, the Reach R-Li T80 represents solid value in our testing framework.