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Product Comparison

Otofonix Encore 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
Otofonix Encore Hero
OtofonixSoundScore 2.7Grade C

Otofonix Encore

The Otofonix Encore is a budget-priced prescription hearing aid available for $295, earning a C grade with a SoundScore of 2.7/5 in our lab testing. This behind-the-ear device ranks #37 of 39 in the Prescription Hearing Aid category, placing it in the bottom tier of its class. In our standardized testing, the Encore demonstrates one clear strength: excellent feedback handling at 4.7/5, which means users are unlikely to experience whistling or squealing during normal use. However, the device shows significant limitations in other areas. Speech intelligibility scores are low in both quiet (1.0/5) and noisy environments (1.0/5), falling 2.40 and 1.11 points below category averages respectively. Music streaming performance scored 0.0/5, indicating this device is not suitable for those who want to stream audio content. The Encore uses disposable batteries and comes in a traditional behind-the-ear style. Notably, our tuned fit testing showed a slight decrease in overall performance compared to the initial fit, with the normalized score dropping from 2.8/5 to 2.4/5. Own-voice comfort also declined substantially when moving to a more occluding coupling. At this price point, consumers may want to consider alternatives. The RxEars Rxi offers substantially better performance at a similar budget price point with a score of 4.07/5. The Otofonix Encore may appeal to buyers seeking a very low-cost entry into prescription hearing aids who prioritize feedback stability, but those needing reliable speech clarity or streaming capabilities should explore other options.

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
Otofonix Encore1.0
Phonak Sphere Infinio4.5
Speech in noiseNew
Otofonix Encore1.0
Phonak Sphere Infinio4.7
Own voice
Otofonix Encore0.1
Phonak Sphere Infinio2.3
Feedback handling
Otofonix Encore4.7
Phonak Sphere Infinio3.6
Music streaming
Otofonix Encore0.0
Phonak Sphere Infinio4.0
Overall fit score
Otofonix Encore2.4
Phonak Sphere Infinio5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Audio scenes

Recorded samples (Tuned)

Otofonix Encore: No recording for this scene.

Fitting configuration for tuned fit

Otofonix EncorePhonak Sphere Infinio
Ear CouplingClosed Dome
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