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Product Comparison
Cearvol Diamond X1 vs Otofonix Groove
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
Cearvol Diamond X12.7
–
Speech in noise
Cearvol Diamond X11.3
Otofonix Groove-0.8
Own voice
Cearvol Diamond X11.7
Otofonix Groove0.4
Feedback handling
Cearvol Diamond X14.5
Otofonix Groove5.0
Music streaming
Cearvol Diamond X14.1
–
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