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Product Comparison

Audien Hearing Atom vs Cearvol Diamond X1

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
Audien Hearing Atom Hero
AudienSoundScore 3.3Grade B

Audien Hearing Atom

The Audien Hearing Atom is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.3/5 in our lab testing. At $89, it represents one of the most affordable entry points into amplification, though its performance reflects that positioning with a rank of #52 among 65 OTC hearing aids tested. The Atom's standout strength is its excellent feedback handling, scoring a perfect 5.0/5—above the category average by 0.46 points. This means users can expect stable amplification without the whistling that can plague some budget devices. However, speech performance is more limited: speech in quiet scores a mixed 2.6/5 (0.15 points below category average), while speech in noise drops to a low 1.0/5 (0.48 points below average). A significant limitation is the complete lack of music streaming capability, scoring 0.0/5—nearly 2 points below the already-modest category average. Own-voice comfort also falls below average at 2.1/5. These results suggest the Atom is designed purely for basic amplification rather than multimedia use. The Atom may suit buyers seeking the most affordable path to mild amplification who prioritize stability over advanced features. However, several competitors in the same price range offer substantially better performance—some scoring a full point higher. Those willing to consider alternatives may find meaningfully better speech clarity and additional capabilities without significant price increases.

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.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Audien Hearing Atom2.6
Cearvol Diamond X12.8
Speech in noiseNew
Audien Hearing Atom1.0
Cearvol Diamond X11.7
Own voice
Audien Hearing Atom2.1
Cearvol Diamond X11.7
Feedback handling
Audien Hearing Atom5.0
Cearvol Diamond X14.5
Music streaming
Audien Hearing Atom0.0
Cearvol Diamond X14.1
Overall fit score
Audien Hearing Atom3.3
Cearvol Diamond X13.8

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Audio scenes

Recorded samples (Tuned)

Audien Hearing Atom: No recording for this scene.

Fitting configuration for tuned fit

Audien Hearing AtomCearvol Diamond X1
Ear CouplingClosed Dome
Ear CouplingClosed Dome
ReceiverIntegrated in device
Receiver–
Fitting FormulaProprietary manufacturer default
Fitting Formula–
Listening ProgramDefault
Listening Program–
Volume SettingVolume pot adjusted.
Volume Setting–
Software VersionUnknown (not displayed)
Software Version–
Tuning Adjustmentsn/a
Tuning Adjustments–
NotesTuned and Initial Fittings identical as device offered limited adjustments.
Notes–