Fortell AI Hearing Aids vs Otofonix Helix
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

Fortell AI Hearing Aids
The Fortell AI Hearing Aids are a premium prescription behind-the-ear device priced at $6,800, earning an A grade with a SoundScore of 6.0/5 in HearAdvisor lab testing—an exceptional result that places this device at the top of the prescription hearing aid category. Speech performance is where the Fortell AI truly distinguishes itself. Speech in noise scores an outstanding 6.0/5, a full 3.89 points above the category average of 2.11/5—the kind of margin that represents a meaningful difference in challenging listening environments like restaurants or group conversations. Speech in quiet also excels at 4.6/5, sitting 1.20 points above the category average. Music streaming performs strongly at 4.2/5, coming in 1.44 points above average for the category. The device does have a notable limitation: own-voice comfort scores just 1.5/5, falling 1.20 points below the category average. This low absolute score suggests wearers may notice occlusion effects when speaking. Feedback handling is excellent at 4.8/5, essentially matching the category average. Best suited for: Users who prioritize understanding speech in difficult listening situations and value streaming quality, and who can tolerate potential own-voice occlusion. Given the premium price point, buyers should weigh whether the exceptional speech-in-noise performance justifies the investment compared to alternatives like the Oticon Intent or Oticon Zeal, which offer strong performance at lower price points.

Otofonix Helix
The Otofonix Helix is a behind-the-ear amplification product released in 2021, priced at $695. In HearAdvisor's lab testing, it earned a C grade with a SoundScore of 2.6/5, ranking #7 of 8 devices in the Amplification Product category. The Helix demonstrates one clear strength: excellent feedback handling at 5.0/5, which is 0.72 points above the category average. This means users are unlikely to experience whistling or squealing during typical use. However, the device shows significant limitations in other areas. Speech clarity scores are low in both quiet (1.0/5) and noisy (1.0/5) environments, falling below category averages by 1.11 and 0.37 points respectively. Own-voice comfort is notably weak at 0.3/5 in the tuned configuration, measuring 2.34 points below the category average. This suggests users may find their own voice sounds unnatural or boomy. Music streaming capability scored 0.0/5, indicating this device is not suitable for those who want to stream audio content. Consumers in this price range have substantially higher-performing alternatives available. The Sennheiser Conversation Clear Plus scores 4.04/5, while the HearingAssist Micro achieves 3.54/5. Those seeking similar performance at a lower price point might consider the Otofonix Encore or RCA Micro. The Helix may appeal to users who prioritize feedback-free amplification over speech clarity or streaming features, but most shoppers will find better value elsewhere in this category.
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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)
Audio scenes
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit