Audicus Omni 2 vs Phonak Sphere Infinio Ultra
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Audicus Omni 2
The Audicus Omni 2 is a premium-priced behind-the-ear OTC hearing aid available for $1,898. With a SoundScore of 4.6/5 and an A grade, it ranks #5 among 65 OTC hearing aids tested, placing it in the top 6% of its category. In our lab testing, the Omni 2 demonstrates strong speech clarity in quiet environments, scoring 4.2/5—well above the category average by 1.38 points. Speech in noise performance is more modest at 2.3/5, which is above the category average by 0.79 points but mixed in absolute terms. This pattern suggests the device handles everyday conversations well while challenging listening situations may still present difficulty. Music streaming is a particular strength, scoring 3.6/5 and exceeding the category average by a substantial 1.68 points. Feedback handling is excellent at 4.5/5, virtually matching the category average. Own-voice comfort scores a solid 3.0/5, which is 0.49 points above average for OTC devices. The Omni 2 offers both rechargeable and disposable battery options, along with streaming compatibility for iPhone and Android devices with hands-free capability. It has earned Expert's Choice Awards for both 2023 and 2024. Consumers seeking alternatives in this price range may also consider the similarly-priced Lucid Tala, while the lower-priced Lexie B3 offers competitive performance for those with tighter budgets.
Choice

Phonak Sphere Infinio Ultra
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.
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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