Linner Mars vs Otofonix Encore
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Linner Mars
The Linner Mars is a budget-priced OTC hearing aid released in 2023, earning a B grade with a SoundScore of 3.2/5 in our lab testing. At $399, it falls in the lower price tier of the OTC category but ranks #55 of 65 OTC devices tested, placing it in the bottom 17% of its category. This visible-in-ear device presents a mixed performance profile with notable strengths and significant weaknesses. Music streaming is a standout feature, scoring an excellent 4.6/5—a full 2.68 points above the category average. Feedback handling is also excellent at 5.0/5, meaning users can expect stable performance without whistling during normal use. However, speech clarity presents challenges. Speech in quiet scores a low 1.9/5, falling 0.85 points below the category average. Speech in noise performance is particularly limited at 1.0/5, sitting 0.46 points below average. Own-voice comfort also scores low at 1.0/5, which is 1.51 points below the category average—users may notice their own voice sounding unnatural or boomy. The Linner Mars may suit budget-conscious consumers who prioritize music and media streaming over speech understanding in challenging environments. However, buyers seeking better speech performance should consider alternatives like the Elehear Beyond or Apple AirPods Pro 2, which offer stronger overall sound scores in the same price range.

Otofonix Encore
The Otofonix Encore is a behind-the-ear prescription hearing aid priced at $295, placing it in the budget tier of the prescription category. In our lab testing, it earned a C grade with a SoundScore of 2.7/5, ranking 35th out of 36 prescription hearing aids tested. Sound performance presents significant challenges across most metrics. Speech clarity scores are low in both quiet (1.0/5) and noisy environments (1.0/5), falling 2.32 and 0.96 points below category averages respectively. Music streaming capability is essentially absent at 0.0/5, and own-voice comfort is notably limited at 0.1/5 in the tuned configuration—2.65 points below the category average. The one bright spot is feedback handling, which scores an excellent 4.7/5. While this falls just 0.01 points below the category average, it represents strong absolute performance that should minimize whistling issues during daily use. This device runs on disposable batteries. At this price point, shoppers should be aware that the RxEars Rxi offers substantially better sound performance (4.09/5) in the same price range. The Otofonix Encore may suit budget-conscious consumers who prioritize feedback stability over speech clarity and streaming features, but our testing suggests most users would benefit from considering higher-performing alternatives within this price tier.
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