Lexie B3 vs Phonak Sphere Infinio Ultra

The Lexie B3 is a mid-priced OTC hearing aid available at $999 that achieves an A grade with a SoundScore of 4.7/5 in our lab testing, ranking #1 among 65 OTC hearing aid devices tested. This behind-the-ear style device delivers category-leading performance across multiple metrics. Speech clarity is a standout strength. In our lab testing, the Lexie B3 scores an excellent 4.5/5 for speech in quiet, measuring 1.73 points above the OTC category average. Speech in noise performance scores 2.5/5—above the category average by 1.02 points, though only mixed in absolute terms at 2.5/5. This pattern reflects the broader challenge OTC devices face in noisy environments while still positioning the B3 as a top performer relative to its category. Music streaming quality is solid at 3.3/5, outperforming the category average by 1.38 points. Own-voice comfort scores a solid 3.0/5, sitting 0.49 points above average. Feedback handling is excellent at 4.6/5, essentially matching the already-strong category average. The Lexie B3 is best suited for consumers seeking top-tier OTC sound performance without prescription hearing aid costs. Those who prioritize speech clarity in quieter settings will find particular value here. Budget-conscious shoppers may want to consider alternatives like the RxEars Rxi, which offers strong performance at a lower price point.

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.