Orka Two 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.
Choice

Orka Two
The Orka Two is a behind-the-ear prescription hearing aid priced at $1,899, earning an A grade with a SoundScore of 4.0/5 in our lab testing. This places it in the top 67% of the 36 prescription hearing aids we've evaluated, ranking #25 in its category. In our testing, the Orka Two shows a mixed performance profile with clear strengths and weaknesses. Music streaming stands out at 3.3/5, measuring 0.66 points above the category average—a solid result for users who prioritize phone audio quality. Own-voice comfort also performs well at 3.2/5, sitting 0.45 points above average, which may contribute to a more natural listening experience. Feedback handling is excellent at 5.0/5, among the best we've measured. However, speech-in-noise performance is a notable limitation. At 1.4/5, it falls 0.56 points below the category average—a low absolute score that may affect understanding in challenging listening environments like restaurants or group conversations. Speech in quiet fares better at 3.7/5, measuring 0.40 points above average. The Orka Two may suit users who prioritize streaming quality, own-voice comfort, and stability over speech-in-noise performance. Those frequently in noisy environments should note that competitors in this price range, such as the Rexton Reach R-Li T80 at Costco (4.58/5), deliver stronger overall scores. Budget-conscious shoppers might also consider lower-priced alternatives like the Sony CRE-C10, which scored 4.19/5 in our testing.
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.
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