Apple AirPods Pro 2 vs Linner Mars
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Apple AirPods Pro 2
The Apple AirPods Pro 2 is a budget-priced OTC hearing aid that earns an A grade with a SoundScore of 4.1/5 in our lab testing, placing it in the top 26% of OTC hearing aids tested. At $249, it represents one of the more affordable options in the category while delivering strong overall performance. In our testing, the AirPods Pro 2 shows particular strength in speech clarity for quiet environments, scoring 4.2/5—a strong result that sits 1.38 points above the category average. Music streaming is where this device truly excels, earning 4.4/5 and outperforming the category average by a substantial 2.48 points. Feedback handling is excellent at 5.0/5, meaning users should experience virtually no whistling issues. The device does have limitations. Own-voice comfort scores 1.9/5, which is low in absolute terms and 0.61 points below the category average—users may notice their own voice sounds different or boomy. Speech in noise performance is above average for the category at 2.3/5 (+0.77 points), but this remains a mixed result in absolute terms, suggesting challenging listening environments will still be difficult. The AirPods Pro 2 is best suited for consumers already in the Apple ecosystem who want hearing support primarily in quieter settings and value excellent music and media streaming. Those frequently in noisy environments or sensitive to own-voice changes may want to consider alternatives.

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.
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