Otofonix Encore vs Phonak Sphere Infinio
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Otofonix Encore
The Otofonix Encore is a behind-the-ear prescription hearing aid priced at $295, placing it in the budget tier of the prescription category. In our lab testing, it earned a C grade with a SoundScore of 2.7/5, ranking 35th out of 36 prescription hearing aids tested. Sound performance presents significant challenges across most metrics. Speech clarity scores are low in both quiet (1.0/5) and noisy environments (1.0/5), falling 2.32 and 0.96 points below category averages respectively. Music streaming capability is essentially absent at 0.0/5, and own-voice comfort is notably limited at 0.1/5 in the tuned configuration—2.65 points below the category average. The one bright spot is feedback handling, which scores an excellent 4.7/5. While this falls just 0.01 points below the category average, it represents strong absolute performance that should minimize whistling issues during daily use. This device runs on disposable batteries. At this price point, shoppers should be aware that the RxEars Rxi offers substantially better sound performance (4.09/5) in the same price range. The Otofonix Encore may suit budget-conscious consumers who prioritize feedback stability over speech clarity and streaming features, but our testing suggests most users would benefit from considering higher-performing alternatives within this price tier.
Choice

Phonak Sphere Infinio
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.
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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)
Audio scenes
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit