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Product Comparison

Sennheiser All Day Clear vs Signia Styletto C&G IX

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
Expert Choice
Expert
Choice
Product Image
SennheiserSoundScore 4.4Grade A

Sennheiser All Day Clear

The Sennheiser All Day Clear is a mid-priced OTC hearing aid that earns an A grade with a SoundScore of 4.4/5, placing it in the top 8% of all OTC hearing aids tested in our lab. At $949, this behind-the-ear device delivers strong overall performance that stands out in a crowded category. In our testing, the All Day Clear excels at speech clarity in quiet environments, scoring 4.0/5—a full 1.25 points above the OTC category average. Music streaming is another highlight, with a solid 3.3/5 score that's 1.38 points above average, making it one of the better choices for listeners who want quality audio beyond speech. Feedback handling is excellent at 5.0/5, meaning users shouldn't experience whistling issues during normal use. Speech in noise presents a more nuanced picture. At 1.9/5, the score sits 0.39 points above the category average, but remains low in absolute terms—a common challenge across OTC devices. Own-voice comfort scores at 2.5/5, essentially matching the category average. The Sennheiser All Day Clear is well-suited for users who prioritize clear speech understanding in everyday quiet-to-moderate listening situations and value high-quality audio streaming. Those frequently in noisy environments may want to manage expectations, though this limitation is shared across most OTC alternatives.

Expert Choice
Expert
Choice
Signia Styletto C&G IX Hero
SigniaSoundScore 4.6Grade A

Signia Styletto C&G IX

The Signia Styletto C&G IX is a premium prescription hearing aid released in 2024, priced at $3,398. In our lab testing, it earned an A grade with a SoundScore of 4.6/5, ranking #11 among 39 prescription hearing aids tested. This behind-the-ear device delivers strong performance across several key metrics. Speech clarity in quiet environments scores 3.9/5, which is 0.54 points above the category average—a solid result for everyday conversations. Own-voice comfort is a particular highlight at 3.7/5, scoring a full point above average, suggesting natural sound quality when speaking. Music streaming also performs above average at 3.1/5. Speech understanding in noisy environments scores 2.5/5, which is above the category average by 0.43 points but remains mixed in absolute terms—worth considering if challenging listening situations are common. Feedback handling at 3.6/5 is solid in absolute terms, though it falls 1.12 points below the category average of 4.72/5. The Styletto C&G IX is well-suited for users who prioritize natural own-voice quality and reliable speech clarity in quieter settings. Those frequently in noisy environments or particularly sensitive to feedback may want to compare options. At this price point, competitors like the Phonak Sphere Infinio and Oticon Intent score higher overall, while alternatives like the Rexton Reach R-Li T80 at Costco offer similar sound performance at a lower price.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Sennheiser All Day Clear4.0
Signia Styletto C&G IX3.9
Speech in noiseNew
Sennheiser All Day Clear1.9
Signia Styletto C&G IX2.5
Own voice
Sennheiser All Day Clear2.5
Signia Styletto C&G IX3.7
Feedback handling
Sennheiser All Day Clear5.0
Signia Styletto C&G IX3.6
Music streaming
Sennheiser All Day Clear3.3
Signia Styletto C&G IX3.1
Overall fit score
Sennheiser All Day Clear4.4
Signia Styletto C&G IX4.5

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Sennheiser All Day ClearSignia Styletto C&G IX
Ear CouplingClosed Vented Dome
Ear CouplingSleeve Vented
ReceiverStandard
Receiver–
Fitting FormulaProprietary manufacturer default
Fitting Formula–
Listening ProgramAutomatic
Listening Program–
Volume Setting-4
Volume Setting–
Software VersionUnknown
Software Version–
Tuning Adjustments3-Band EQ adjusted (Bass - 5, Mid - 4, Treble - 4), Other settings and manufacturer defaults
Tuning Adjustments–