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Product Comparison
Oticon Zeal vs Sennheiser All-Day Clear Slim
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
Oticon Zeal4.5
Sennheiser All-Day Clear Slim3.3
Speech in noise
Oticon Zeal2.9
Sennheiser All-Day Clear Slim1.0
Own voice
Oticon Zeal2.0
Sennheiser All-Day Clear Slim1.9
Feedback handling
Oticon Zeal3.3
Sennheiser All-Day Clear Slim5.0
Music streaming
Oticon Zeal3.3
Sennheiser All-Day Clear Slim3.8
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Fitting configuration for tuned fit
Oticon ZealSennheiser All-Day Clear Slim
Ear CouplingClosed Vented Dome
Ear CouplingSleeve Closed
Receiver75
Receiver–
Fitting FormulaNAL-NL2
Fitting Formula–
Listening ProgramGeneral (Automatic)
Listening Program–
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Volume Setting–
Software VersionFirmware v1.0.0
Software Version–
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Acclimatization at 3/3, Other settings at manufacturer defaults
Tuning Adjustments–
Notesn/a
Notes–