Linner Saturn vs Sennheiser All-Day Clear Slim
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Linner Saturn
The Linner Saturn is a budget-priced OTC hearing aid that earned a B grade with a SoundScore of 3.6/5 in our lab testing. At $168, it sits in the most affordable tier of the OTC market and ranks #34 of 65 OTC hearing aids tested. In our testing, the Saturn demonstrated a notable strength in speech clarity during quiet environments, scoring 3.9/5—a solid result that's 1.10 points above the OTC category average. This suggests the device handles everyday conversations in calm settings reasonably well. Feedback handling also performed strongly at 4.4/5, though this sits slightly below the category average of 4.54/5. The Saturn shows meaningful limitations in other areas. Speech in noise scored just 1.1/5, falling 0.38 points below the category average—a low result that may affect performance in restaurants, group gatherings, or other challenging listening environments. Own-voice comfort scored 1.5/5, which is 1.01 points below average and low in absolute terms, suggesting some users may notice their own voice sounds unnatural. Music streaming scored 0.0/5, indicating this device is not suited for audio entertainment purposes. The Linner Saturn may appeal to budget-conscious consumers who primarily need help hearing speech in quieter environments and don't require music streaming capabilities. However, buyers seeking better noise handling or streaming features should consider alternatives in this price range, such as the higher-scoring Elehear Beyond or Apple AirPods Pro 2.
Choice

Sennheiser All-Day Clear Slim
The Sennheiser All-Day Clear Slim is a premium behind-the-ear OTC hearing aid priced at $1,499, earning an A grade with a SoundScore of 4.1/5 in our lab testing. This places it in the top 23% of the OTC hearing aid category, ranking #16 among 65 tested devices. In our testing, the All-Day Clear Slim demonstrates notable strengths in music streaming, scoring 3.8/5—a solid result that sits 1.88 points above the category average. This makes it one of the stronger performers for users who prioritize audio quality when streaming from their phone. Feedback handling is excellent at 5.0/5, measuring 0.46 points above the category average, meaning users can expect stable performance without whistling during typical daily activities. Speech clarity in quiet environments is solid at 3.6/5, coming in 0.85 points above the category average. However, speech in noise performance is low at 1.5/5, matching the category average—a common limitation across OTC devices. Own-voice comfort scores 1.9/5, which is 0.61 points below the category average, suggesting some users may notice their own voice sounds different or hollow. The All-Day Clear Slim includes rechargeable batteries and supports streaming to both iPhone and Android devices with hands-free functionality. At its price point, alternatives like the Lucid Tala and Audicus Omni 2 offer higher overall scores, though the Sennheiser may appeal to those who value the brand's audio heritage and prioritize music streaming quality over speech-in-noise 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