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

Linner Nova Deluxe
The Linner Nova Deluxe is a budget-priced OTC hearing aid available for $299, earning a B grade with a SoundScore of 3.3/5 in HearAdvisor's lab testing. This visible-in-ear style device ranks #53 of 65 OTC hearing aids tested, placing it in the lower tier of its category. In our testing, the Nova Deluxe showed a notable strength in feedback handling, scoring an excellent 5.0/5—0.46 points above the category average. This suggests stable performance without whistling during typical wear. Speech clarity in quiet environments scored a mixed 2.8/5, right at the category average, providing basic conversational support. However, speech understanding in noisy situations scored a low 1.4/5, slightly below average. The device has significant limitations in two areas. Own-voice comfort scored just 0.5/5, which is 2.01 points below the category average, indicating noticeable occlusion effects when speaking. Music streaming scored 0.0/5 in our lab measurements, 1.92 points below average, making this device poorly suited for audio entertainment despite offering iPhone, Android, and hands-free streaming connectivity. At its $299 price point, the Nova Deluxe competes against higher-performing alternatives in the same budget range. This device may suit buyers prioritizing stability and basic speech clarity in quieter settings, but those who stream music or are sensitive to how their own voice sounds should consider other options in this price tier.

Otofonix Groove
The Otofonix Groove is a behind-the-ear prescription hearing aid priced at $795, earning a C grade with a SoundScore of 2.7/5 in our lab testing. This rechargeable BTE device ranks 36th out of 36 tested prescription hearing aids, placing it in the bottom tier of its category. In our testing, the Groove demonstrated one clear strength: excellent feedback handling at 5.0/5, scoring 0.29 points above the category average. The device remained stable during our standardized challenge motions with no audible feedback issues. However, speech performance was significantly limited, with both speech in quiet and speech in noise scoring 1.0/5—falling 2.32 and 0.96 points below their respective category averages. Music streaming quality scored 0.0/5, which is 2.64 points below the prescription category average. Own-voice comfort was also low at 0.4/5 in the tuned configuration, 2.35 points below average, suggesting notable occlusion-related concerns. The normalized Initial Score of 2.7/5 and Tuned Score of 2.6/5 indicate that professional fitting adjustments did not improve overall performance. Given its positioning at the bottom of the prescription hearing aid category and the availability of lower-priced alternatives that scored higher in our testing, the Otofonix Groove may be difficult to recommend for most users seeking balanced sound quality across listening situations.
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