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Product Comparison
Lucid Ultra 128 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
Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Speech in quiet
Lucid Ultra 128 4.4
Sennheiser All-Day Clear Slim3.3
Speech in noise
Lucid Ultra 128 2.5
Sennheiser All-Day Clear Slim1.0
Own voice
Lucid Ultra 128 2.9
Sennheiser All-Day Clear Slim1.9
Feedback handling
Lucid Ultra 128 1.7
Sennheiser All-Day Clear Slim5.0
Music streaming
Lucid Ultra 128 2.3
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
Lucid Ultra 128 Sennheiser All-Day Clear Slim
Ear CouplingClosed Vented Dome
Ear CouplingSleeve Closed
ReceiverStandard
Receiver–
Fitting FormulaProprietary manufacturer default
Fitting Formula–
Listening ProgramLucid (Automatic)
Listening Program–
Volume Setting54% (Default 7/13)
Volume Setting–
Software VersionBT Firmware v12.0.29, Firmware v9.2.33
Software Version–
Tuning AdjustmentsProgrammed to N3 audiogram by Lucid team, LucidShape adjusted to match NAL-NL2 targets at 65 dB SPL, Other settings at manufacturer default
Tuning Adjustments–
NotesDefault programming was performed by Lucid team, further adjustments were limited as we did not have access to their proprietary software.
Notes–