Jabra Enhance Select 700 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.

Jabra Enhance Select 700
The Jabra Enhance Select 700 is a premium-priced OTC hearing aid available at $1,795, earning a B grade with a SoundScore of 3.8/5 in our lab testing. This behind-the-ear device ranks #26 of 65 OTC hearing aids tested, placing it in the top 38% of the category. In our testing, the Enhance Select 700 shows notable strengths in own-voice comfort, scoring 3.7/5—a solid result that sits 1.19 points above the category average. This makes it a comfortable choice for users sensitive to the "hollow" sound of their own voice that some hearing aids produce. Feedback handling is excellent at 5.0/5, meaning users can expect stable performance without whistling during typical daily activities. Speech clarity in quiet environments is solid at 3.1/5, coming in 0.27 points above the category average. However, speech understanding in noisy settings is a weakness, scoring just 1.0/5—falling 0.48 points below the category average. Users who frequently encounter restaurants, group gatherings, or other challenging listening environments may find this limitation significant. Music streaming quality is mixed at 2.5/5, though still 0.58 points above the category average. At this price point, buyers should note that several same-priced alternatives deliver stronger overall performance, including the Lucid Tala (4.63/5) and Audicus Omni 2 (4.61/5). The Enhance Select 700 is best suited for users who prioritize own-voice comfort and feedback-free wear over speech-in-noise performance, and who value Jabra's established brand and support ecosystem.
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 3% of the 36 prescription hearing aids tested and ranking #2 in its category. This device delivers exceptional speech performance in our testing. Speech in noise scored an excellent 4.5/5, a remarkable 2.55 points above the category average of 1.96/5—one of the largest margins we've measured in this critical metric. Speech in quiet also performed strongly at 4.3/5, exceeding the category average by 1.00 point. These results suggest the Sphere Infinio Ultra prioritizes speech clarity across challenging listening environments. Music streaming quality is solid at 3.3/5, sitting 0.66 points above the category average. Own voice comfort scored 2.8/5, which is above the category average but remains mixed in absolute terms—listeners sensitive to occlusion may notice this limitation. Feedback handling measured 4.2/5, which is strong in absolute terms though 0.51 points below the category average of 4.71/5. The Sphere Infinio Ultra is best suited for users who prioritize speech understanding, particularly in noisy environments, and who are prepared to invest in premium technology. Those seeking the highest feedback stability or improved own-voice comfort may want to compare alternatives, though this device's speech performance stands out as a category leader.
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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