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Product Comparison

Eargo 6 vs Olive Union Air

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
Eargo 6 Hero
EargoSoundScore 3.4Grade B

Eargo 6

The Eargo 6 is a premium-priced OTC hearing aid ($2,250) that earns a B grade with a SoundScore of 3.4/5 in our lab testing. This invisible-in-ear device ranks #42 of 65 OTC hearing aids tested, placing it in the top 63% of its category. In our standardized testing, the Eargo 6 demonstrates solid speech clarity in quiet environments, scoring 3.3/5—notably 0.53 points above the OTC category average. Own-voice comfort also performs above category average at 2.9/5, which may benefit users sensitive to the sound of their own voice. However, the device shows limitations in challenging listening situations, with speech-in-noise performance scoring 1.0/5, falling 0.48 points below the category average. A significant limitation is music streaming, which scores 0.0/5—well below the category average by 1.92 points. Users who prioritize streaming audio content should consider alternatives. Feedback handling scores 3.3/5, which is solid in absolute terms though 1.24 points below the category average of 4.54/5. The Eargo 6 may appeal to users prioritizing a completely invisible form factor and solid quiet-environment performance. However, at its premium price point, alternatives like the Sony CRE-C10 offer stronger overall performance at a lower price. The rechargeable battery adds convenience, but buyers should weigh the device's limitations in noise and streaming against its aesthetic benefits.

Product Image
OliveSoundScore 3.9Grade B

Olive Union Air

The Olive Union Air is a budget-priced OTC hearing aid that earned a B grade with a SoundScore of 3.9/5 in our lab testing, placing it in the top 31% of OTC hearing aids at #21 of 65 devices tested. At $250, it represents a competitive entry point in the over-the-counter hearing aid market. In our testing, this visible-in-ear style device demonstrated notable strengths in music streaming, scoring 3.6/5—a solid result that sits 1.67 points above the OTC category average. Feedback handling was excellent at 5.0/5, meaning users should experience minimal whistling or squealing during normal use. Speech understanding in quiet environments also performed well at 3.3/5, measuring 0.46 points above the category average. The Olive Union Air does show limitations in more challenging listening situations. Speech in noise scored 1.0/5, falling 0.48 points below the category average—a common weakness among budget OTC devices that may affect conversations in restaurants or busy environments. Own-voice comfort measured 2.2/5, slightly below average, which some users may notice when speaking. This device is best suited for individuals who prioritize music and media streaming, need reliable feedback control, and primarily listen in quieter environments. Those who frequently encounter noisy social situations may want to consider devices with stronger speech-in-noise performance.

Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Eargo 63.3
Olive Union Air3.3
Speech in noiseNew
Eargo 61.0
Olive Union Air1.0
Own voice
Eargo 62.9
Olive Union Air2.2
Feedback handling
Eargo 63.3
Olive Union Air5.0
Music streaming
Eargo 60.0
Olive Union Air3.6
Overall fit score
Eargo 63.4
Olive Union Air3.9

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Eargo 6Olive Union Air
Ear CouplingSleeve Closed
Ear CouplingFoam tip
Receiver–
ReceiverIntegrated in device
Fitting Formula–
Fitting FormulaProprietary manufacturer default
Listening Program–
Listening ProgramRestaurant
Volume Setting–
Volume Setting90% (9/10)
Software Version–
Software Versionvm4053d1203
Tuning Adjustments–
Tuning AdjustmentsMulti-band equalizer was adjusted, Hearing Settings at "Default", Directionality at "Front", Noise Setting at "3" (max), Feedback Cancellation at "On", Other settings at manufacturer defaults.