Lexie B2 Plus vs Phonak Sphere Infinio
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Lexie B2 Plus
The Lexie B2 Plus is a mid-priced OTC hearing aid that earns an A grade with a SoundScore of 4.4/5 in HearAdvisor's lab testing, ranking #7 among 65 OTC devices. Priced at $899, this behind-the-ear rechargeable device has earned back-to-back Expert's Choice Awards in 2023 and 2024. In our testing, the B2 Plus demonstrates strong speech-in-quiet performance at 4.3/5, which is 1.49 points above the OTC category average. Own-voice comfort is excellent at 4.8/5, measuring 2.29 points above average—a notable strength that may appeal to users who find their own voice bothersome with other devices. Speech-in-noise scores 2.1/5, which is above the category average by 0.58 points but remains mixed in absolute terms, reflecting the broader challenge OTC devices face in noisy environments. The device does show a weakness in feedback handling, scoring 2.8/5—which is 1.74 points below the category average of 4.54/5. Users may encounter occasional whistling during activities that bring objects close to the ear. Music streaming performance is mixed at 2.6/5, though still 0.68 points above the OTC average. The Lexie B2 Plus offers both iPhone and Android streaming compatibility. It's well-suited for users prioritizing clear speech in quieter settings and natural own-voice perception, though those frequently in noisy environments or concerned about feedback stability may want to consider alternatives like the Sony CRE-E10 in this price range.
Choice

Phonak Sphere Infinio
The Phonak Sphere Infinio is a premium behind-the-ear prescription hearing aid released in 2024, priced at $4,898. In our lab testing, it earned an A grade with a SoundScore of 5.0/5, placing it at #2 among 39 prescription hearing aids tested—within the top 3% of its category. The standout performance comes in speech clarity. Speech in noise scores an excellent 4.7/5, a remarkable 2.59 points above the category average of 2.11/5. Speech in quiet also impresses at 4.5/5, sitting 1.07 points above average. For anyone who struggles to follow conversations in restaurants, gatherings, or busy environments, this device delivers measurably superior intelligibility compared to most alternatives we've tested. Music streaming quality is strong at 4.0/5, exceeding the category average by 1.24 points—a meaningful advantage for users who value audio fidelity when streaming from phones. However, own-voice comfort is mixed at 2.3/5, falling 0.40 points below the category average, which may affect how natural your own speech sounds. Feedback handling, while solid in absolute terms at 3.6/5, sits 1.12 points below the category average of 4.72/5. The Sphere Infinio is best suited for users prioritizing exceptional speech understanding, particularly in challenging noise environments, and who are willing to invest at the premium tier. Those especially sensitive to own-voice quality or requiring maximum feedback stability may want to compare alternatives like the similarly-priced Oticon Intent or the lower-priced Phonak Audéo EON Sphere.
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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)
Fitting configuration for tuned fit