MDHearing Neo XS vs Olive Union Max
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

MDHearing Neo XS
The MDHearing Neo XS is a budget OTC hearing aid featuring an invisible-in-ear design, priced at $397. In our lab testing, it earned a C grade with a SoundScore of 2.9/5, ranking #63 of 65 devices in the OTC hearing aid category. This device presents a mixed performance profile. Its standout strength is excellent feedback handling at 5.0/5, scoring 0.46 points above the category average—meaning users should experience minimal whistling or squealing during everyday use. Own-voice comfort is also solid at 3.2/5, sitting 0.69 points above average, which suggests the device manages occlusion reasonably well for its invisible design. However, speech clarity is a significant weakness. Speech in quiet scored just 1.0/5, falling 1.77 points below the category average, while speech in noise scored 1.0/5, sitting 0.48 points below average. Music streaming scored 0.0/5, coming in 1.92 points below average—indicating this device is not suitable for audio entertainment. These low absolute scores mean users may struggle to achieve meaningful speech benefit in our standardized test conditions. The invisible-in-ear form factor and rechargeable batteries offer convenience, but buyers should weigh this against the limited speech performance. Several competitors in the same price range—including the Elehear Beyond (4.34/5) and Apple AirPods Pro 2 (4.04/5)—deliver substantially better sound quality. The Neo XS may appeal to those prioritizing discretion and feedback-free wear over speech clarity, but most users seeking improved communication would benefit from exploring higher-performing alternatives.

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.
Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Scale 1-5 (Tuned)
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Fitting configuration for tuned fit