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Product Comparison

HearingAssist Eaze vs Phonak Sphere Infinio

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

Uses Official HearAdvisor Lab Data
HearingAssist Eaze Hero
HearingAssistSoundGrade B

HearingAssist Eaze

The HearingAssist Eaze is a budget-priced OTC hearing aid released in 2023, earning a B grade with a SoundScore of 3.4/5 in our lab testing. At $399, it sits in the most affordable price tier of the OTC market, though it ranks #43 of 65 devices in its category. In our standardized testing, the Eaze demonstrates excellent feedback handling, scoring a perfect 5.0/5—0.46 points above the category average. This means users can expect stable performance without whistling during typical daily activities. However, the device shows limitations in other areas: speech clarity scores are mixed at 2.6/5 in quiet and low at 1.3/5 in noisy environments, both falling slightly below category averages. The most significant limitation is music streaming, which scored 0.0/5—nearly 2 points below the category average. Buyers who prioritize phone streaming for music or media should consider alternatives. Own-voice comfort is also mixed at 2.2/5, approximately 0.31 points below average for OTC devices. At this price point, shoppers have several higher-scoring alternatives to consider, including the Elehear Beyond and Apple AirPods Pro 2, which offer stronger overall performance. The HearingAssist Eaze may suit budget-conscious buyers who prioritize feedback stability over streaming capabilities and can accept modest speech performance in challenging listening situations.

Expert Choice
Expert
Choice
Hero Image
PhonakSoundGrade A

Phonak Sphere Infinio

The Phonak Sphere Infinio is a premium prescription behind-the-ear hearing aid released in 2024, priced at $4,898. In HearAdvisor's lab testing, it achieved a SoundScore of 5.0/5 and an A grade, ranking #1 among 36 prescription hearing aids tested. This device delivers exceptional speech performance, particularly in challenging listening environments. Speech in noise scored an excellent 4.7/5, measuring 2.74 points above the category average—a substantial margin that sets it apart from competitors. Speech in quiet also performed strongly at 4.5/5, sitting 1.15 points above average. Music streaming earned a strong 4.0/5, exceeding the category average by 1.36 points. The Sphere Infinio does show some trade-offs. Feedback handling scored a solid 3.6/5 in absolute terms, though this falls 1.11 points below the category average of 4.71/5. Own-voice comfort scored a mixed 2.3/5, slightly below the category average. These are areas where some competing premium devices perform better. This hearing aid is best suited for those who prioritize speech clarity, especially in noisy environments like restaurants or social gatherings. The behind-the-ear style offers rechargeable batteries and streaming compatibility with both iPhone and Android devices. Among premium-priced competitors like the Oticon Intent (4.85/5) and Oticon Real (4.75/5), the Sphere Infinio leads in overall sound performance, earning HearAdvisor's Expert's Choice Award for 2024 and 2023.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
HearingAssist Eaze2.6
Phonak Sphere Infinio4.5
Speech in noiseNew
HearingAssist Eaze1.3
Phonak Sphere Infinio4.7
Own voice
HearingAssist Eaze2.2
Phonak Sphere Infinio2.3
Feedback handling
HearingAssist Eaze5.0
Phonak Sphere Infinio3.6
Music streaming
HearingAssist Eaze0.0
Phonak Sphere Infinio4.0
Overall fit score
HearingAssist Eaze3.4
Phonak Sphere Infinio5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

HearingAssist EazePhonak Sphere Infinio
Ear CouplingClosed Dome
Ear CouplingClosed Vented Dome
Receiver
ReceiverMedium-power
Fitting Formula
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Listening Program
Listening ProgramAutoSense OS (Automatic)
Volume Setting
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software Version
Software Versionv10.0.0.2318
Tuning Adjustments
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults
Notes
Notesn/a