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Product Comparison
Phonak Sphere Infinio Ultra vs RxEars Rxi
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Uses Official HearAdvisor Lab Data
Expert
Choice
Choice
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Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Speech in quiet
Phonak Sphere Infinio Ultra4.7
RxEars Rxi3.9
Speech in noise
Phonak Sphere Infinio Ultra4.4
RxEars Rxi1.7
Own voice
Phonak Sphere Infinio Ultra2.8
RxEars Rxi1.6
Feedback handling
Phonak Sphere Infinio Ultra4.2
RxEars Rxi4.7
Music streaming
Phonak Sphere Infinio Ultra3.3
RxEars Rxi0.0
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Audio scenes
Using MUSHRA scenes (Tuned)
No sample
No sample
No sample
No sample
No sample
No sample
Fitting configuration for tuned fit
Phonak Sphere Infinio UltraRxEars Rxi
Ear CouplingEasyGuard Vented
Ear CouplingClosed Dome
ReceiverMedium-power
Receiver–
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Fitting Formula–
Listening ProgramAutoSense OS (Automatic)
Listening Program–
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Volume Setting–
Software VersionV1.1.11.0
Software Version–
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults
Tuning Adjustments–