Linner Nova Earbud vs Sontro Soundwave
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Linner Nova Earbud
The Linner Nova Earbud is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.5/5 in our lab testing. Priced at $299, this visible-in-ear device offers an interesting performance profile that sets it apart from typical hearing aids in its category. The Nova Earbud's standout strength is its excellent music streaming quality, scoring 4.5/5—a full 2.58 points above the OTC category average. This makes it one of the better options for users who prioritize audio entertainment through their hearing devices. Feedback handling is equally impressive at 5.0/5, meaning users can expect stable performance without the whistling that plagues some competitors. However, the device shows significant limitations in core hearing aid functions. Speech in quiet environments scores a mixed 2.1/5, falling 0.71 points below the category average. Speech in noise performance is low at 1.3/5, slightly below average for the category. Own-voice comfort is notably weak at 0.5/5, sitting 2.01 points below the category average—users may find their own voice sounds unnatural or boomy. The Linner Nova Earbud is best suited for budget-conscious consumers who value music streaming and stable feedback performance over maximum speech clarity. Those prioritizing speech understanding, particularly in noisy environments, may want to consider alternatives like the higher-scoring Elehear Beyond or Apple AirPods Pro 2 in the same price range.

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)
Audio scenes
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit