HearingAssist Micro vs Starkey Evolv AI
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

HearingAssist Micro
The HearingAssist Micro is a premium amplifier in the invisible-in-ear style, priced at $698. In HearAdvisor's lab testing, it earned a B grade with a SoundScore of 3.5/5, ranking #3 among 8 tested amplification products and placing in the top 25% of its category. This device demonstrates a clear strength in speech clarity for quiet environments, scoring 3.5/5—a solid result that sits 1.35 points above the category average of 2.11/5. Feedback handling is also strong at 4.0/5, providing stable performance during typical use. Own-voice comfort lands at 2.8/5, which is above the category average by 0.16 points, though still mixed in absolute terms. However, the Micro shows notable limitations in more challenging listening situations. Speech in noise scored just 1.1/5, falling 0.31 points below the category average—a meaningful weakness for users who frequently encounter background noise. Music streaming is where this device struggles most significantly, scoring 0.0/5, which is 1.16 points below the already-low category average. The HearingAssist Micro is best suited for listeners who primarily need amplification for face-to-face conversations in quiet settings and prioritize a discreet, nearly invisible form factor. Those who rely on phone streaming for music or podcasts, or who need robust performance in noisy environments, should consider alternatives. Within its price range, the Sennheiser Conversation Clear Plus offers notably higher overall performance at a similar investment.

Starkey Evolv AI
The Starkey Evolv AI is a premium prescription behind-the-ear hearing aid released in 2022, currently available at $4,598. In HearAdvisor's lab testing, it earns a B grade with a SoundScore of 3.9/5, ranking #30 of 39 prescription hearing aids tested. This device shows notable strengths in specific performance areas. Music streaming quality scores a solid 3.7/5, which is +0.94 points above the category average—a meaningful advantage for users who frequently stream audio from their phone. Speech in noise performance also stands out at 2.8/5, sitting +0.66 points above the category average, though this remains a mixed absolute score. Speech in quiet is solid at 3.4/5, essentially matching the category average. The Evolv AI does show some limitations in our testing. Own voice comfort scores 2.1/5, falling -0.60 points below the category average, which may affect how natural your own speech sounds. Feedback handling presents a more significant gap: while the 3.5/5 score is solid in absolute terms, it sits -1.22 points below the category average of 4.72/5, meaning competing prescription devices generally perform better in feedback stability tests. Professional fitting makes a meaningful difference with this device. The normalized Initial Score of 3.8/5 improves to 4.2/5 after tuning, a +0.4 point gain primarily driven by improvements in speech clarity metrics. At this premium price point, several competitors like the Phonak Sphere Infinio and Oticon Intent deliver higher overall scores. The Evolv AI is best suited for users who prioritize music streaming quality and speech understanding in noise, and who have access to professional fitting services to optimize performance.
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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)
Fitting configuration for tuned fit