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Product Comparison

EarCentric EX2 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
EarCentric EX2 Hero
EarCentricSoundScore 2.7Grade C

EarCentric EX2

The EarCentric EX2 is a behind-the-ear prescription hearing aid priced at $218, positioning it as a budget-friendly option in the prescription category. In HearAdvisor's lab testing, it earned a C grade with a SoundScore of 2.7/5, ranking #35 of 39 prescription hearing aids tested. This 2021 release demonstrates mixed performance across key metrics. Its standout strength is feedback handling, scoring an excellent 4.7/5—essentially matching the category average and indicating reliable stability during movement. However, speech performance is a significant weakness: speech in quiet scores just 1.0/5 (2.40 points below the category average of 3.40), and speech in noise scores 1.0/5 (1.11 points below average). These low absolute scores suggest limited audibility enhancement in our standardized test conditions. Own-voice comfort scores 2.3/5, which is mixed in absolute terms and 0.40 points below the category average. Music streaming scored 0.0/5, indicating this device is not suited for audio entertainment purposes. The EarCentric EX2 may appeal to budget-conscious consumers who prioritize cost over performance, but alternatives exist at similar or lower price points with stronger test results. The RxEars Rxi, available in the same price range, scored 4.07/5 in our testing. Consumers seeking entry-level amplification should weigh the significant speech clarity limitations against the low purchase price.

Expert Choice
Expert
Choice
Hero Image
PhonakSoundScore 5.0Grade A

Phonak Sphere Infinio

The Phonak Sphere Infinio is a premium behind-the-ear prescription hearing aid released in 2024, priced at $4,898. In our lab testing, it earned an A grade with a SoundScore of 5.0/5, placing it at #2 among 39 prescription hearing aids tested—within the top 3% of its category. The standout performance comes in speech clarity. Speech in noise scores an excellent 4.7/5, a remarkable 2.59 points above the category average of 2.11/5. Speech in quiet also impresses at 4.5/5, sitting 1.07 points above average. For anyone who struggles to follow conversations in restaurants, gatherings, or busy environments, this device delivers measurably superior intelligibility compared to most alternatives we've tested. Music streaming quality is strong at 4.0/5, exceeding the category average by 1.24 points—a meaningful advantage for users who value audio fidelity when streaming from phones. However, own-voice comfort is mixed at 2.3/5, falling 0.40 points below the category average, which may affect how natural your own speech sounds. Feedback handling, while solid in absolute terms at 3.6/5, sits 1.12 points below the category average of 4.72/5. The Sphere Infinio is best suited for users prioritizing exceptional speech understanding, particularly in challenging noise environments, and who are willing to invest at the premium tier. Those especially sensitive to own-voice quality or requiring maximum feedback stability may want to compare alternatives like the similarly-priced Oticon Intent or the lower-priced Phonak Audéo EON Sphere.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
EarCentric EX21.0
Phonak Sphere Infinio4.5
Speech in noiseNew
EarCentric EX21.0
Phonak Sphere Infinio4.7
Own voice
EarCentric EX22.3
Phonak Sphere Infinio2.3
Feedback handling
EarCentric EX24.7
Phonak Sphere Infinio3.6
Music streaming
EarCentric EX20.0
Phonak Sphere Infinio4.0
Overall fit score
EarCentric EX22.7
Phonak Sphere Infinio5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

EarCentric EX2Phonak Sphere Infinio
Ear CouplingPower Dome with Slits
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