Autiphon U0 Series vs Lexie Lumen
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Autiphon U0 Series
The Autiphon U0 Series is a budget amplification product available at $99, earning a B grade with a SoundScore of 3.0/5 in HearAdvisor's lab testing. This visible-in-ear device ranks #6 of 8 amplification products tested, placing it in the top 63% of its category. In our testing, the U0 Series demonstrates excellent feedback handling at 5.0/5, scoring 0.72 points above the category average. This means users can expect stable performance without the whistling issues that plague some amplifiers. Speech in quiet environments scores 2.3/5—above the category average by 0.22 points, though only mixed in absolute terms. The device shows notable limitations in other areas. Speech in noise performance is low at 1.0/5, falling 0.37 points below the category average, which may make challenging listening environments difficult. Music streaming is the weakest area at 0.0/5, coming in 1.16 points below category average—users seeking audio streaming functionality should look elsewhere. The Autiphon U0 Series is best suited for budget-conscious consumers who primarily need basic amplification in quieter settings and prioritize reliable, feedback-free operation over advanced features. The rechargeable batteries add convenience at this price point. However, those who frequently encounter noisy environments or want to stream music should consider alternatives despite the higher cost.

Lexie Lumen
The Lexie Lumen is a budget-priced OTC hearing aid that earned a B grade with a SoundScore of 3.5/5 in our lab testing, placing it in the top 60% of the OTC category. At $299, this behind-the-ear device uses disposable batteries and represents one of the more affordable entry points into amplification. In our standardized testing, the Lumen demonstrated notably strong feedback handling, scoring 5.0/5 in the tuned configuration—0.46 points above the category average. This excellent stability means users can expect minimal whistling during typical daily activities. Speech in noise performance scored 2.0/5, which is above the category average by 0.55 points, though still mixed in absolute terms. The device shows clear limitations in certain areas. Music streaming scored 0.0/5, falling 1.92 points below category average—prospective buyers who prioritize phone streaming for music or media should consider alternatives. Speech in quiet performance is also slightly below average at 2.5/5, a mixed result that may affect understanding in everyday conversation. The Lexie Lumen is best suited for budget-conscious first-time users who prioritize stable, feedback-free amplification over streaming capabilities. However, shoppers in this price range have several higher-performing alternatives available, including the Sony CRE-E10 and Lexie B2 Plus, both of which scored significantly higher in our testing.
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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)
Audio scenes
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit