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

Linner Mercury
The Linner Mercury is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.1/5 in our lab testing. Priced at $387, it ranks #60 of 65 devices in the OTC Hearing Aid category, placing it in the top 91% of the category. In our testing, the Mercury shows a mixed performance profile. Its standout strength is excellent feedback handling at 4.7/5, which is 0.16 points above the category average—meaning users are unlikely to experience whistling or squealing during normal use. However, speech clarity metrics fall below category norms: speech in quiet scores 2.2/5 (0.62 points below average), and speech in noise scores a low 1.0/5 (0.48 points below average). Own-voice comfort also scores low at 1.6/5, sitting 0.91 points below the category average. Music streaming is a notable weakness, scoring 0.0/5—a full 1.92 points below the category average. Users who prioritize streaming audio from their phone should consider alternatives. The device uses a rechargeable battery and features a visible in-ear design with power dome coupling. At this price point, several competitors offer stronger overall performance. The Linner Mercury may appeal to budget-conscious consumers who prioritize feedback-free operation over speech clarity and streaming quality, but those seeking better speech understanding in challenging environments should explore higher-scoring options in this price range.
Choice
Oticon Real
The Oticon Real is a premium behind-the-ear prescription hearing aid released in 2023, currently available at $4,798. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.8/5, placing it in the top 8% of all prescription hearing aids tested and ranking #4 out of 36 devices in its category. Speech performance is a standout strength. Speech in quiet scores an excellent 4.5/5 on initial fit—0.72 points above the category average—while speech in noise scores 3.0/5, nearly a full point above the category average of 1.96/5. While the speech-in-noise result is above average for the category, it remains mixed in absolute terms at 2.9/5 after tuning, reflecting the inherent challenge of noisy environments for all hearing aids. Music streaming quality starts strong at 4.2/5 on initial fit, though it drops to a mixed 2.8/5 after tuning—still slightly above the category average. Feedback handling scores a solid 4.0/5, which is strong in absolute terms, though it falls 0.71 points below the category average of 4.71/5. Own-voice comfort is mixed at 2.4/5, slightly below the category average. The Oticon Real competes directly with other premium devices like the Phonak Sphere Infinio (5.0/5) and Oticon Intent (4.85/5). It offers versatile connectivity with iPhone and Android streaming plus hands-free capabilities, and supports both rechargeable and disposable batteries. This device is best suited for users prioritizing strong out-of-box speech clarity who want a well-rounded premium hearing aid from a trusted manufacturer.
We independently review each item we recommend and appreciate your trust and support. When you buy through our links, we may earn a commission. Learn More.
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