EarCentric EX2 vs Signia Styletto AX
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

EarCentric EX2
The EarCentric EX2 is a behind-the-ear prescription hearing aid priced at $218, positioning it as a budget-friendly option in the prescription category. In HearAdvisor's lab testing, it earned a C grade with a SoundScore of 2.7/5, ranking #35 of 39 prescription hearing aids tested. This 2021 release demonstrates mixed performance across key metrics. Its standout strength is feedback handling, scoring an excellent 4.7/5—essentially matching the category average and indicating reliable stability during movement. However, speech performance is a significant weakness: speech in quiet scores just 1.0/5 (2.40 points below the category average of 3.40), and speech in noise scores 1.0/5 (1.11 points below average). These low absolute scores suggest limited audibility enhancement in our standardized test conditions. Own-voice comfort scores 2.3/5, which is mixed in absolute terms and 0.40 points below the category average. Music streaming scored 0.0/5, indicating this device is not suited for audio entertainment purposes. The EarCentric EX2 may appeal to budget-conscious consumers who prioritize cost over performance, but alternatives exist at similar or lower price points with stronger test results. The RxEars Rxi, available in the same price range, scored 4.07/5 in our testing. Consumers seeking entry-level amplification should weigh the significant speech clarity limitations against the low purchase price.
Choice

Signia Styletto AX
The Signia Styletto AX is a premium prescription behind-the-ear hearing aid that earned an A grade with a SoundScore of 4.3/5 in our lab testing, ranking #21 of 39 prescription hearing aids tested. Priced at $4,398, this 2022 release features a distinctive slim design with rechargeable batteries and iPhone streaming capability. In our testing, the Styletto AX demonstrated strong speech clarity in quiet environments, scoring 4.0/5—0.63 points above the category average. Speech in noise performance was above average at 2.3/5 (+0.17 vs category), though this remains mixed in absolute terms, suggesting challenging listening situations may still require additional strategies. Own-voice comfort scored a solid 3.0/5, sitting 0.30 points above average. Music streaming quality measured 3.1/5, performing 0.34 points above the category average for solid audio fidelity when streaming from compatible devices. Feedback handling scored 3.9/5—solid in absolute terms, though 0.82 points below the category average of 4.72/5, which is worth noting if feedback stability is a priority. The Styletto AX has earned Expert's Choice Awards in both 2023 and 2024. However, buyers in this premium price tier should be aware that several competitors offer higher SoundScores, including the Phonak Sphere Infinio (4.98/5) and Oticon Intent (4.83/5). The Styletto AX may appeal most to those prioritizing its sleek aesthetic and strong quiet-environment speech performance over maximum scores in noise or feedback handling.
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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