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Product Comparison

Cearvol Diamond X1 vs Jabra Enhance Pro 20 at Costco

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
Cearvol Diamond X1 Hero
CearvolSoundGrade B

Cearvol Diamond X1

The Cearvol Diamond X1 is a budget-priced OTC hearing aid available for $199, earning a B grade with a SoundScore of 3.7/5 in our lab testing. This visible-in-ear style device ranks #30 among 65 OTC hearing aids tested, placing it in the top 45% of its category. The Diamond X1 delivers a mixed performance profile with one notable strength: music streaming. With a score of 4.1/5, it performs 2.18 points above the category average—a substantial margin that makes it appealing for users who value audio entertainment through their hearing aids. Feedback handling is excellent at 4.5/5, providing stable performance during typical daily movements. Both iPhone and Android streaming are supported with rechargeable batteries for convenience. Speech performance presents a more modest picture. Speech in quiet scores 2.8/5, which is above the category average but only mixed in absolute terms. Speech in noise measures 1.7/5—above the category average of 1.48/5, though still low overall. Own-voice comfort is a weakness at 1.7/5, falling 0.81 points below the category average, which may cause your own voice to sound unnatural or boomy. The Diamond X1 is best suited for budget-conscious consumers who prioritize music and media streaming over maximum speech clarity. Those seeking stronger speech performance in challenging listening environments may want to consider higher-scoring alternatives in this price range, such as the Elehear Beyond or Apple AirPods Pro 2.

Expert Choice
Expert
Choice
Jabra Enhance Pro 20 at Costco Hero
JabraSoundGrade A

Jabra Enhance Pro 20 at Costco

The Jabra Enhance Pro 20 at Costco is a prescription behind-the-ear hearing aid available for $1,600, earning an A grade with a SoundScore of 4.0/5 in our lab testing. This places it in the top 61% of the 36 prescription hearing aids we've evaluated. In our testing, this device shows a mixed performance profile. Own-voice comfort is a clear strength, scoring 3.5/5—0.75 points above the category average—making it a solid choice for users who prioritize natural sound quality when speaking. Feedback handling is excellent at 4.8/5, slightly above the category average, indicating stable performance during typical daily activities. However, speech-in-noise performance is notably limited, scoring just 1.1/5—0.82 points below the category average of 1.96. This is a meaningful weakness for users who frequently encounter noisy environments like restaurants or social gatherings. Speech in quiet is solid at 3.2/5, though slightly below the category average. Music streaming scores 2.8/5, above average but only mixed in absolute terms. At this price point, buyers should consider alternatives. The Rexton Reach R-Li T80 at Costco scores 4.58/5 in the same price range, while lower-priced options like the Lexie B3 (4.76/5) offer stronger overall performance. The Jabra Enhance Pro 20 may suit users who prioritize own-voice comfort and feedback stability over challenging listening environments, but those needing robust noise handling should explore other options.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Cearvol Diamond X12.8
Jabra Enhance Pro 20 at Costco3.2
Speech in noiseNew
Cearvol Diamond X11.7
Jabra Enhance Pro 20 at Costco1.1
Own voice
Cearvol Diamond X11.7
Jabra Enhance Pro 20 at Costco3.5
Feedback handling
Cearvol Diamond X14.5
Jabra Enhance Pro 20 at Costco4.8
Music streaming
Cearvol Diamond X14.1
Jabra Enhance Pro 20 at Costco2.8
Overall fit score
Cearvol Diamond X13.9
Jabra Enhance Pro 20 at Costco4.0

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Cearvol Diamond X1Jabra Enhance Pro 20 at Costco
Ear CouplingClosed Dome
Ear CouplingTulip Dome
Receiver
ReceiverMedium-power
Fitting Formula
Fitting FormulaAudiogram+ (Manufacturer proprietary targets)
Listening Program
Listening ProgramUniversal (Automatic)
Volume Setting
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software Version
Software VersionFirmware v9.18.12, Software v2.0.132.26
Tuning Adjustments
Tuning AdjustmentsProgrammed to N3 audiogram, Experience Level set at "Experienced User Non-Linear", Other settings at manufacturer defaults
Notes
Notesn/a