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Product Comparison

Eargo Link vs Phonak Sphere Infinio Ultra

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
Eargo Link Hero
EargoSoundGrade A

Eargo Link

The Eargo Link is a mid-priced OTC hearing aid released in 2024, earning an A grade with a SoundScore of 4.1/5 in our lab testing. At $799, it ranks #15 of 65 OTC hearing aids tested, placing it in the top 22% of the category. In our testing, the Eargo Link demonstrates notable strengths in music streaming, scoring 4.4/5—a strong result that sits 2.48 points above the category average. This makes it a standout choice for users who prioritize audio quality when streaming from their phone. Speech performance is solid, with speech in quiet measuring 3.2/5 (0.42 points above average) and speech in noise at 2.0/5 (0.54 points above average, though mixed in absolute terms). Feedback handling is excellent at 4.7/5. The main limitation is own-voice comfort, which scores 1.3/5—a low result that falls 1.21 points below the category average. Users sensitive to the sound of their own voice may find this challenging, particularly with the closed dome configuration used in the tuned fit. The Eargo Link supports both iPhone and Android streaming with hands-free capability and uses rechargeable batteries. It's best suited for those who value exceptional music streaming quality and solid speech clarity, and who can tolerate some own-voice occlusion. Competitors in this price range include higher-scoring options like the Yeasound RIC800 and Sony CRE-E10, though the Eargo Link's streaming performance remains a differentiator.

Expert Choice
Expert
Choice
Hero Image
PhonakSoundGrade A

Phonak Sphere Infinio Ultra

The Phonak Sphere Infinio Ultra is a premium behind-the-ear prescription hearing aid priced at $4,898. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.9/5, placing it in the top 3% of the 36 prescription hearing aids tested and ranking #2 in its category. This device delivers exceptional speech performance in our testing. Speech in noise scored an excellent 4.5/5, a remarkable 2.55 points above the category average of 1.96/5—one of the largest margins we've measured in this critical metric. Speech in quiet also performed strongly at 4.3/5, exceeding the category average by 1.00 point. These results suggest the Sphere Infinio Ultra prioritizes speech clarity across challenging listening environments. Music streaming quality is solid at 3.3/5, sitting 0.66 points above the category average. Own voice comfort scored 2.8/5, which is above the category average but remains mixed in absolute terms—listeners sensitive to occlusion may notice this limitation. Feedback handling measured 4.2/5, which is strong in absolute terms though 0.51 points below the category average of 4.71/5. The Sphere Infinio Ultra is best suited for users who prioritize speech understanding, particularly in noisy environments, and who are prepared to invest in premium technology. Those seeking the highest feedback stability or improved own-voice comfort may want to compare alternatives, though this device's speech performance stands out as a category leader.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Eargo Link3.2
Phonak Sphere Infinio Ultra4.3
Speech in noiseNew
Eargo Link2.0
Phonak Sphere Infinio Ultra4.5
Own voice
Eargo Link1.3
Phonak Sphere Infinio Ultra2.8
Feedback handling
Eargo Link4.7
Phonak Sphere Infinio Ultra4.2
Music streaming
Eargo Link4.4
Phonak Sphere Infinio Ultra3.3
Overall fit score
Eargo Link4.1
Phonak Sphere Infinio Ultra5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Eargo LinkPhonak Sphere Infinio Ultra
Ear CouplingClosed Dome
Ear CouplingEasyGuard Vented
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 VersionV1.1.11.0
Tuning Adjustments
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults