Linner Saturn vs Sontro Soundwave
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 earning a B grade with a SoundScore of 3.6/5 in our lab testing. Priced at $168, it sits in the affordable tier of the OTC market and ranks #34 of 65 OTC devices tested. In our testing, the Saturn demonstrates a notable strength in speech clarity during quiet environments, scoring 3.9/5—a solid result that measures 1.10 points above the OTC category average of 2.79/5. This suggests the device may work well for conversations in calm settings. Feedback handling also performs strongly at 4.4/5 in absolute terms, though this falls slightly below the category average of 4.54/5. The device shows clear limitations in other areas. Speech in noise scores just 1.1/5, falling 0.38 points below category average—a meaningful gap for users who need help in challenging listening environments. Own-voice comfort is low at 1.5/5, measuring 1.01 points below average, which may affect how natural your own speech sounds while wearing the aids. Music streaming scored 0.0/5, indicating this device is not suited for audio entertainment. The Linner Saturn is best suited for budget-conscious users who primarily need help with face-to-face conversations in quiet settings and don't require streaming capabilities. Shoppers willing to spend in this price range should also consider alternatives like the Elehear Beyond or Apple AirPods Pro 2, which scored higher in our testing.

Sontro Soundwave
The Sontro Soundwave is a mid-priced OTC hearing aid that earns a B grade with a SoundScore of 3.0/5 in our lab testing. At $849, this behind-the-ear device uses disposable batteries and sits in the lower tier of OTC performance, ranking #61 of 65 devices in its category. The Soundwave's strongest attribute is own-voice comfort, scoring 3.6/5—a solid result that sits 1.09 points above the OTC category average. This makes it relatively comfortable for wearers who are sensitive to hearing their own voice sound unnatural or boomy. However, other performance areas present significant limitations. Speech clarity scores are below average in both quiet and noisy environments. Speech in quiet scores 2.7/5 (0.12 points below average), while speech in noise drops to 1.2/5 (0.28 points below average). Feedback handling is a notable weakness at 2.5/5, falling 2.04 points below the category average of 4.54/5. Perhaps most limiting is the music streaming score of 0.0/5, indicating this device does not support phone audio streaming—a feature many competitors in this price range offer. Consumers prioritizing own-voice comfort on a moderate budget may find the Soundwave acceptable, but those seeking strong speech clarity or streaming capability should consider alternatives. Several higher-performing OTC devices are available at similar or lower price points, including options like the Lexie Lumen or HearingAssist Control that deliver comparable or better overall sound quality.
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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