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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
CearvolSoundScore 3.7Grade B

Cearvol Diamond X1

The Cearvol Diamond X1 is a budget-priced OTC hearing aid that earned a B grade with a SoundScore of 3.7/5 in our lab testing, placing it in the top 45% of OTC devices. At $199, it represents an accessible entry point for those exploring hearing amplification. The Diamond X1's standout performance is in music streaming, scoring 4.1/5—a strong result that sits 2.18 points above the OTC category average. This makes it notably capable for users who prioritize audio entertainment through their hearing devices. Feedback handling is also excellent at 4.5/5, meaning users should experience minimal whistling during normal use. However, speech performance presents limitations. Speech in quiet scores a mixed 2.8/5, and speech in noise registers at 1.7/5. While both metrics technically sit above category averages (+0.03 and +0.22 points respectively), they remain low in absolute terms—important context for anyone prioritizing conversation clarity. Own-voice comfort is another weakness, scoring 1.7/5, which is 0.81 points below the category average and may affect how natural users sound to themselves. The Diamond X1 is best suited for budget-conscious consumers who value music streaming quality and aren't heavily reliant on challenging listening environments. Those who prioritize speech understanding in noise or natural own-voice perception may want to consider alternatives in this price range, such as the higher-scoring Elehear Beyond or Apple AirPods Pro 2.

Expert Choice
Expert
Choice
Jabra Enhance Pro 20 at Costco Hero
JabraSoundScore 4.0Grade A

Jabra Enhance Pro 20 at Costco

The Jabra Enhance Pro 20 at Costco is a behind-the-ear prescription hearing aid priced at $1,600, placing it in the premium tier. With a SoundScore of 4.0/5 and an A grade, it ranks #25 of 39 prescription hearing aids tested in our lab. In our testing, this device demonstrates notable strengths in own-voice comfort, scoring 3.5/5—0.80 points above the category average. This solid performance means wearers may find their own voice sounds more natural compared to many competitors. Feedback handling is excellent at 4.8/5, slightly above the category average, indicating reliable stability during movement and phone use. However, the Enhance Pro 20 shows limitations in challenging listening environments. Speech-in-noise performance scores just 1.1/5, falling 0.97 points below the category average—a significant gap that may affect conversations in restaurants, social gatherings, or other noisy settings. Speech-in-quiet is solid at 3.2/5 in absolute terms, though still 0.17 points below the category average. Music streaming scores 2.8/5, which is above the category average but only mixed in absolute terms. This device suits users who prioritize comfortable own-voice perception and excellent feedback control, and who spend most listening time in quieter environments. Those frequently navigating noisy situations may want to consider alternatives like the Rexton Reach R-Li T80 at Costco, which scored 4.56/5 in our testing. The Enhance Pro 20 includes rechargeable batteries, iPhone and Android streaming, and hands-free functionality.

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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 X13.8
Jabra Enhance Pro 20 at Costco3.9

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