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

RCA In-Ear
The RCA In-Ear is a budget-priced OTC hearing aid available for $249, earning a C grade with a SoundScore of 2.8/5 in our lab testing. This places it near the bottom of the OTC hearing aid category, ranking 64th out of 65 devices tested. In our standardized testing, the RCA In-Ear shows a mixed performance profile. Its standout strength is excellent feedback handling, scoring a perfect 5.0/5—0.46 points above the category average. This means users are unlikely to experience whistling or squealing during normal wear. Own-voice comfort scores 2.6/5, which is essentially at the category average (+0.09 points), offering mixed but acceptable performance for how your own voice sounds while wearing the devices. However, the core speech performance metrics present significant limitations. Speech in quiet scores just 1.0/5, falling 1.79 points below the category average, and speech in noise also scores 1.0/5, sitting 0.48 points below average. Music streaming scored 0.0/5, indicating this device is not suitable for audio entertainment purposes. At this price point, buyers have considerably stronger options. Competitors like the Lucid Enrich Pro and JLab Hear OTC offer better sound performance at lower prices. The RCA In-Ear may appeal to those prioritizing feedback-free wear above speech clarity, but most users seeking meaningful hearing benefit should consider higher-performing alternatives in this budget segment.
We independently review each item we recommend and appreciate your trust and support. When you buy through our links, we may earn a commission. Learn More.
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