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Product Comparison

Phonak Sphere Infinio Ultra vs Vivtone Xpure Hearing Aid

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
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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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VivtoneSoundGrade B

Vivtone Xpure Hearing Aid

The Vivtone Xpure is a mid-priced behind-the-ear OTC hearing aid priced at $549 that earns a B grade with a SoundScore of 3.1/5 in our lab testing. Ranking #57 of 65 OTC hearing aids tested, this 2023 release offers a mixed performance profile with one notable strength. The Xpure's standout feature is its music streaming quality, scoring an excellent 4.4/5—a full 2.48 points above the OTC category average. For users who prioritize listening to music or audio content through their hearing aids, this represents genuinely strong performance. Speech clarity in quiet environments scores 2.9/5, slightly above the category average but mixed in absolute terms. However, the Xpure shows limitations in several key areas. Speech understanding in noisy environments scores just 1.2/5, falling 0.29 points below the category average. Own-voice comfort is notably low at 0.8/5, sitting 1.71 points below average—users may find their own voice sounds unnatural or boomy. Feedback handling scores a solid 3.3/5 in absolute terms, though this still falls 1.24 points below the strong OTC category average of 4.54/5. The Xpure improves with professional fitting, with the normalized score increasing from 3.0/5 initially to 3.5/5 when tuned. Buyers seeking similar sound quality at lower prices may want to consider alternatives like the Linner Nova Earbud or Nuheara IQBuds Max, both of which scored higher in our testing at lower price points. The Xpure is best suited for users who prioritize excellent music streaming and can accept trade-offs in speech-in-noise performance and own-voice comfort.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Phonak Sphere Infinio Ultra4.3
Vivtone Xpure Hearing Aid2.9
Speech in noiseNew
Phonak Sphere Infinio Ultra4.5
Vivtone Xpure Hearing Aid1.2
Own voice
Phonak Sphere Infinio Ultra2.8
Vivtone Xpure Hearing Aid0.8
Feedback handling
Phonak Sphere Infinio Ultra4.2
Vivtone Xpure Hearing Aid3.3
Music streaming
Phonak Sphere Infinio Ultra3.3
Vivtone Xpure Hearing Aid4.4
Overall fit score
Phonak Sphere Infinio Ultra5.2
Vivtone Xpure Hearing Aid3.5

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Phonak Sphere Infinio UltraVivtone Xpure Hearing Aid
Ear CouplingEasyGuard Vented
Ear CouplingClosed Dome
ReceiverMedium-power
ReceiverDefault
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Fitting FormulaProprietary manufacturer default
Listening ProgramAutoSense OS (Automatic)
Listening ProgramNoise
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Volume Setting90%
Software VersionV1.1.11.0
Software Version2.2.12
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults
Tuning AdjustmentsHearing Evaluation completed, Noise Reduction enabled (Default), Whistle Suppression enabled (Default), "Fine Tuning" adjusted to match targets, "MPO" set at 40%, Other settings left at manufacturer defaults