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Product Comparison

Hear.com Horizon Go IX 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
Expert Choice
Expert
Choice
Hear.com Horizon Go IX Hero
HearSoundScore 4.4Grade A

Hear.com Horizon Go IX

The Hear.com Horizon Go IX is a premium prescription behind-the-ear hearing aid released in 2024, listed at $6,500. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.4/5, ranking #17 among 36 prescription hearing aids tested. This device demonstrates particular strength in speech clarity. Speech in quiet scored a strong 4.0/5, which is +0.72 points above the category average. Speech in noise performance also exceeded the category average by +0.61 points, though at 2.6/5 the absolute score remains mixed—meaning it handles challenging listening environments better than many competitors but still has room for improvement in demanding situations. The most notable limitation is own-voice comfort, scoring 1.8/5—a low result that falls 0.95 points below the category average. Users sensitive to how their own voice sounds may find this particularly noticeable. Feedback handling is strong in absolute terms at 4.4/5, though it sits slightly below the category average by 0.31 points. Music streaming performance is mixed at 2.7/5, essentially matching the category average. At this price point, the Horizon Go IX faces stiff competition. Same-price alternatives like the Phonak Sphere Infinio (5.0/5) and Oticon Intent (4.85/5) deliver higher overall sound performance. Budget-conscious shoppers might also consider options like the Rexton Reach R-Li T80 at Costco, which achieves a higher score at a lower price. The Horizon Go IX is best suited for those prioritizing speech clarity who can accept the own-voice trade-off and prefer the hear.com service model.

Expert Choice
Expert
Choice
Hero Image
PhonakSoundScore 5.0Grade 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
Hear.com Horizon Go IX4.0
Phonak Sphere Infinio4.5
Speech in noiseNew
Hear.com Horizon Go IX2.6
Phonak Sphere Infinio4.7
Own voice
Hear.com Horizon Go IX1.8
Phonak Sphere Infinio2.3
Feedback handling
Hear.com Horizon Go IX4.4
Phonak Sphere Infinio3.6
Music streaming
Hear.com Horizon Go IX2.7
Phonak Sphere Infinio4.0
Overall fit score
Hear.com Horizon Go IX4.4
Phonak Sphere Infinio5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Hear.com Horizon Go IXPhonak Sphere Infinio
Ear CouplingSleeve Closed
Ear CouplingClosed Vented Dome
Receiver119/16
ReceiverMedium-power
Fitting FormulaNAL-NL2
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Listening ProgramUniversal (Automatic)
Listening ProgramAutoSense OS (Automatic)
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software VersionSoftware v9.11.15.112, SiFit v9.11.15.948
Software Versionv10.0.0.2318
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Experience Level set at "Experienced", Acclimatization Level set at 100%, Other settings at manufacturer defaults
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults
Notesn/a
Notesn/a