Signia Pure C&G BCT IX vs Starkey Evolv AI
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Signia Pure C&G BCT IX
The Signia Pure C&G BCT IX is a premium behind-the-ear prescription hearing aid released in 2025, earning an A grade with a SoundScore of 4.4/5 in our lab testing. Priced at $3,398, it ranks #16 among 39 prescription hearing aids tested. In our standardized testing, this device demonstrates particular strength in own-voice comfort, scoring 3.8/5—a solid result that sits 1.10 points above the category average. This makes it a noteworthy option for users who prioritize natural sound quality when speaking. Speech clarity also performs well, with speech-in-quiet at 3.8/5 (+0.39 points above average) and speech-in-noise at 2.5/5 (+0.43 points above average), though the latter remains mixed in absolute terms despite beating the category benchmark. Feedback handling presents an interesting picture: at 4.2/5, it's strong in absolute terms, though it falls 0.52 points below the category average of 4.72/5. Music streaming scores 2.7/5, essentially matching the category average. The device features rechargeable batteries, iPhone and Android streaming, and hands-free functionality. While the Pure C&G BCT IX delivers solid overall performance, shoppers in this premium price tier should note that competitors like the Phonak Sphere Infinio and Oticon Intent score higher in our testing. Budget-conscious buyers may also find comparable sound quality at lower price points from options like the Rexton Reach R-Li T80 at Costco. This hearing aid is best suited for users who value own-voice naturalness and reliable speech clarity in everyday listening situations.

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