Sennheiser Conversation Clear Plus vs Sontro Soundwave
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Sennheiser Conversation Clear Plus
The Sennheiser Conversation Clear Plus is a premium amplification product priced at $850 that earns an A grade with a SoundScore of 4.1/5 in our lab testing. This visible-in-ear device ranks #1 among the 8 amplification products we've tested, earning Expert's Choice Awards in both 2023 and 2024. Streaming and audio quality stand out as exceptional strengths. Music streaming scores an excellent 5.0/5, a remarkable 3.84 points above the category average of 1.16/5. Feedback handling also achieves a perfect 5.0/5, providing excellent stability during use. Speech performance is above the category average, with speech in noise scoring a solid 3.1/5 (+1.74 points vs category) and speech in quiet at 2.6/5 (+0.45 points vs category)—though the latter remains mixed in absolute terms. The primary limitation is own-voice comfort, which scores a low 0.6/5—well below the category average of 2.64/5. This suggests users may notice more occlusion-related effects when speaking. The closed dome coupling used in both initial and tuned configurations contributes to the device's strong feedback performance but does impact own-voice naturalness. The Conversation Clear Plus is best suited for users who prioritize excellent streaming audio quality and stable feedback-free performance over own-voice comfort. Those seeking similar sound quality at a lower price point may consider alternatives like the Apple AirPods Pro 2 or Jabra Enhance Plus. Features include rechargeable batteries, iPhone and Android streaming, and hands-free functionality.

Sontro Soundwave
The Sontro Soundwave is a mid-priced OTC hearing aid priced at $849, earning a B grade with a SoundScore of 3.1/5 in HearAdvisor's lab testing. This behind-the-ear device uses disposable batteries and ranks #61 of 65 OTC hearing aids tested, placing it in the top 92% of its category. In our lab testing, the Soundwave shows a notable strength in own-voice comfort, scoring 3.6/5—a solid result that sits 1.09 points above the category average. This suggests users may experience less of the "talking in a barrel" sensation that can occur with some hearing aids. However, the device faces challenges in other key areas. Speech in quiet scores 2.7/5 (mixed, 0.12 points below average), while speech in noise registers at 1.2/5 (low, 0.28 points below average), indicating potential difficulty in challenging listening environments. The most significant limitations appear in music streaming and feedback handling. Music streaming scores 0.0/5, falling 1.92 points below the category average—a notable weakness for users who value audio entertainment. Feedback handling scores 2.5/5, which is 2.04 points below the category average of 4.54/5, suggesting the device may be more prone to whistling issues. At this price point, competitors offer substantially stronger performance. Devices like the Sony CRE-E10 and Lexie B2 Plus deliver significantly higher sound scores in the same price range. The Sontro Soundwave may suit those prioritizing own-voice comfort over speech clarity and streaming quality, but most users would benefit from exploring higher-performing alternatives at similar or lower prices.
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