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Product Comparison

Eargo 6 vs Signia Styletto AX

Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Uses Official HearAdvisor Lab Data
Eargo 6 Hero
EargoSoundScore 3.4Grade B

Eargo 6

The Eargo 6 is a premium-priced OTC hearing aid ($2,250) that earns a B grade with a SoundScore of 3.4/5 in our lab testing. This invisible-in-ear device ranks #42 of 65 OTC hearing aids tested, placing it in the top 63% of its category. In our standardized testing, the Eargo 6 demonstrates solid speech clarity in quiet environments, scoring 3.3/5—notably 0.53 points above the OTC category average. Own-voice comfort also performs above category average at 2.9/5, which may benefit users sensitive to the sound of their own voice. However, the device shows limitations in challenging listening situations, with speech-in-noise performance scoring 1.0/5, falling 0.48 points below the category average. A significant limitation is music streaming, which scores 0.0/5—well below the category average by 1.92 points. Users who prioritize streaming audio content should consider alternatives. Feedback handling scores 3.3/5, which is solid in absolute terms though 1.24 points below the category average of 4.54/5. The Eargo 6 may appeal to users prioritizing a completely invisible form factor and solid quiet-environment performance. However, at its premium price point, alternatives like the Sony CRE-C10 offer stronger overall performance at a lower price. The rechargeable battery adds convenience, but buyers should weigh the device's limitations in noise and streaming against its aesthetic benefits.

Expert Choice
Expert
Choice
Signia Styletto AX Hero
SigniaSoundScore 4.3Grade A

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 in quietNew
Eargo 63.3
Signia Styletto AX4.0
Speech in noiseNew
Eargo 61.0
Signia Styletto AX2.3
Own voice
Eargo 62.9
Signia Styletto AX3.0
Feedback handling
Eargo 63.3
Signia Styletto AX3.9
Music streaming
Eargo 60.0
Signia Styletto AX3.1
Overall fit score
Eargo 63.4
Signia Styletto AX4.4

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Eargo 6Signia Styletto AX
Ear CouplingSleeve Closed
Ear CouplingSleeve Vented