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Product Comparison
Phonak Sphere Infinio Ultra vs Signia Styletto C&G IX
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
Signia Styletto C&G IX3.9
Speech in noise
Phonak Sphere Infinio Ultra4.4
Signia Styletto C&G IX2.4
Own voice
Phonak Sphere Infinio Ultra2.8
Signia Styletto C&G IX3.7
Feedback handling
Phonak Sphere Infinio Ultra4.2
Signia Styletto C&G IX3.6
Music streaming
Phonak Sphere Infinio Ultra3.3
Signia Styletto C&G IX3.1
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Audio scenes
Using MUSHRA scenes (Tuned)
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Fitting configuration for tuned fit
Phonak Sphere Infinio UltraSignia Styletto C&G IX
Ear CouplingEasyGuard Vented
Ear CouplingSleeve Vented
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–