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Product Comparison

Olive Union Max vs Oticon Zeal

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
Product Image
OliveSoundScore 3.4Grade B

Olive Union Max

The Olive Union Max is a behind-the-ear OTC hearing aid priced at $190, earning a B grade with a SoundScore of 3.4/5 in HearAdvisor's lab testing. This budget-friendly device ranks #41 of 65 OTC hearing aids tested. In our lab testing, the Max shows a distinctive performance profile with clear strengths and limitations. Music streaming stands out with a strong 4.0/5 score, measuring 2.08 points above the OTC category average—making it one of the better choices for audio entertainment. Feedback handling is excellent at 5.0/5, meaning the device maintains stability without whistling during typical daily activities. However, speech performance presents challenges. Speech in quiet scores a mixed 2.6/5, falling 0.21 points below the category average, while speech in noise is low at 1.0/5, measuring 0.48 points below average. Own-voice comfort also scores low at 1.6/5, sitting 0.91 points below the category average—users may notice their own voice sounds unnatural or hollow. The Olive Union Max is best suited for budget-conscious consumers who prioritize music and media streaming over demanding listening environments. Those who frequently need to follow conversations in noisy settings like restaurants or social gatherings may find the speech-in-noise limitations frustrating. For basic amplification in quieter environments with excellent streaming quality at an accessible price point, the Max offers reasonable value despite its speech performance trade-offs.

Expert Choice
Expert
Choice
Product Image
OticonSoundScore 4.7Grade A

Oticon Zeal

The Oticon Zeal is a premium prescription hearing aid in the invisible-in-ear style, carrying an A grade with a SoundScore of 4.7/5 in our lab testing. Priced at $4,798, it ranks #6 among 39 prescription hearing aids tested, placing it in the top 13% of its category. Speech performance is where the Zeal truly excels. Our testing measured an excellent 4.9/5 for speech in quiet—1.48 points above the category average—making it one of the strongest performers for everyday conversations. Speech in noise also scores a solid 3.0/5, sitting 0.93 points above the category average of 2.11/5, indicating reliable performance in moderately challenging listening environments. Music streaming quality registers at a solid 3.3/5, which is 0.54 points above the category average. However, the Zeal shows some limitations in other areas. Own-voice comfort scores a mixed 2.0/5, falling 0.70 points below the category average—something to consider if own-voice naturalness is a priority. Feedback handling measures at 3.3/5, which is solid in absolute terms but sits 1.42 points below the category average of 4.72/5. The Oticon Zeal is best suited for wearers who prioritize exceptional speech clarity and want a discreet, invisible-in-ear form factor. Those especially sensitive to feedback or own-voice effects may want to discuss these trade-offs with their hearing care provider during fitting.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Olive Union Max2.6
Oticon Zeal4.9
Speech in noiseNew
Olive Union Max1.0
Oticon Zeal3.0
Own voice
Olive Union Max1.6
Oticon Zeal2.0
Feedback handling
Olive Union Max5.0
Oticon Zeal3.3
Music streaming
Olive Union Max4.0
Oticon Zeal3.3
Overall fit score
Olive Union Max3.6
Oticon Zeal4.7

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Olive Union MaxOticon Zeal
Ear CouplingFoam tip
Ear CouplingClosed Vented Dome
ReceiverIntegrated in device
Receiver75
Fitting FormulaProprietary manufacturer default
Fitting FormulaNAL-NL2
Listening ProgramRestaurant
Listening ProgramGeneral (Automatic)
Volume Setting60% (6/10)
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software Versionvm3016d153
Software VersionFirmware v1.0.0
Tuning AdjustmentsMulti-band equalizer adjusted, Directionality set to "Front", Noise setting at maximum "3", Feedback cancellation "On", Other settings at manufacturer defaults.
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Acclimatization at 3/3, Other settings at manufacturer defaults
Notes–
Notesn/a