Resound Vivia 9 60S microRIE vs Signia Styletto AX

The ReSound Vivia 9 60S microRIE is a premium prescription behind-the-ear hearing aid released in 2025, currently available at $3,798. In our lab testing, it earned a B grade with a SoundScore of 3.9/5, ranking #29 of 39 prescription hearing aids tested. This device shows a mixed performance profile. Its standout strength is own-voice comfort, scoring 3.4/5—a solid result that sits 0.70 points above the category average. Speech clarity in quiet environments also performs at category average with a score of 3.4/5. Feedback handling is strong in absolute terms at 4.2/5, though this falls 0.52 points below the category average, reflecting the high bar set by competing prescription devices. The Vivia 9's most notable weakness is speech understanding in noisy environments, where it scored just 1.1/5—a low result that trails the category average by 0.96 points. Music streaming performance is mixed at 2.6/5, sitting slightly below average. These limitations are worth considering given the premium price positioning. For listeners who prioritize comfortable own-voice perception and primarily encounter quieter listening situations, the Vivia 9 may be suitable. However, those frequently in challenging noise environments should note that several alternatives in this price range—including the Phonak Sphere Infinio and Oticon Intent—deliver stronger overall performance in our testing. Budget-conscious shoppers may also find comparable sound quality at lower price points with options like the Jabra Enhance Pro 20 at Costco.

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.