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Product Comparison

JVC EH-Z1500 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
JVC EH-Z1500 Hero
JVCSoundScore 4.0Grade A

JVC EH-Z1500

The JVC EH-Z1500 is a mid-priced OTC hearing aid priced at $600, earning an A grade with a SoundScore of 4.0/5 in our lab testing. This behind-the-ear device ranks #19 among 65 OTC hearing aids tested, placing it in the top 28% of its category. Speech clarity is where this device truly excels. In quiet environments, it scores an excellent 4.6/5, performing 1.77 points above the category average. Speech in noise measures 2.6/5—above the category average by 1.09 points, though only mixed in absolute terms. For conversations in calm settings, the EH-Z1500 delivers strong performance that outpaces most OTC competitors. However, this device has notable limitations. Music streaming is not supported, scoring 0.0/5 and falling 1.92 points below the category average. Feedback handling scores a solid 3.8/5 in absolute terms, though this sits 0.74 points below the category average of 4.54/5. Own-voice comfort is mixed at 2.4/5, roughly in line with category norms. The EH-Z1500 uses disposable batteries and a tulip dome coupling. For those prioritizing speech intelligibility in quieter environments over streaming capabilities, this device offers solid value. However, buyers who want music streaming or need strong noise performance should consider alternatives like the Sony CRE-E10 or Lexie B2 Plus in this price range.

Expert Choice
Expert
Choice
Hero Image
PhonakSoundScore 4.9Grade 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 5% of the 39 prescription hearing aids tested and ranking #3 in the category. This device demonstrates exceptional speech performance in our testing. Speech in noise scored 4.5/5—an excellent result that measures 2.40 points above the category average of 2.11/5. Speech in quiet also performed strongly at 4.3/5, which is 0.92 points above the category average. These results suggest the Sphere Infinio Ultra may particularly benefit users who frequently navigate challenging listening environments like restaurants or group conversations. Music streaming delivered a solid 3.3/5, measuring 0.54 points above category average. Own-voice comfort scored 2.8/5, which is above the category average by 0.10 points but remains mixed in absolute terms. Feedback handling measured 4.2/5—strong in absolute terms, though 0.52 points below the category average of 4.72/5. The Sphere Infinio Ultra is best suited for users seeking top-tier speech clarity who prioritize performance in noisy environments and are prepared to invest at the premium price tier. Those seeking similar sound quality at a lower price point may also consider the Phonak Sphere Infinio, which scored 4.98/5 in our testing.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
JVC EH-Z15004.6
Phonak Sphere Infinio Ultra4.3
Speech in noiseNew
JVC EH-Z15002.6
Phonak Sphere Infinio Ultra4.5
Own voice
JVC EH-Z15002.4
Phonak Sphere Infinio Ultra2.8
Feedback handling
JVC EH-Z15003.8
Phonak Sphere Infinio Ultra4.2
Music streaming
JVC EH-Z15000.0
Phonak Sphere Infinio Ultra3.3
Overall fit score
JVC EH-Z15004.3
Phonak Sphere Infinio Ultra5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

JVC EH-Z1500Phonak Sphere Infinio Ultra
Ear CouplingTulip 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