Phonak Audéo EON Sphere vs Rexton Reach R-Li T80 at Costco
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
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.
Choice

Rexton Reach R-Li T80 at Costco
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.
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)
Fitting configuration for tuned fit