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Product Comparison

Audien Atom X 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
Audien Atom X Hero
AudienSoundScore 3.3Grade B

Audien Atom X

The Audien Atom X is a budget OTC hearing aid priced at $389 that earns a B grade with a SoundScore of 3.3/5 in our lab testing. This visible-in-ear style device ranks #54 of 65 OTC hearing aids tested, placing it in the bottom portion of its category. In our testing, the Atom X shows a mixed performance profile with notable strengths and weaknesses. Music streaming quality is a standout, scoring 3.3/5—a solid result that sits 1.38 points above the category average. Feedback handling is excellent at 5.0/5, meaning users can expect stable performance without whistling issues. However, the core speech intelligibility metrics are where this device falls short: speech in quiet scores just 1.5/5 (1.25 points below the OTC average), and speech in noise scores 1.0/5 (0.48 points below average). Own-voice comfort is mixed at 2.3/5, slightly below the category norm. At this price point, several alternatives offer stronger overall performance. Devices like the Elehear Beyond (4.34/5) and Apple AirPods Pro 2 (4.04/5) score meaningfully higher in the same price range. For those prioritizing value, the JLab Hear OTC delivers a similar SoundScore of 3.54/5 at a lower price. The Atom X may appeal to users who prioritize music streaming quality and want simple rechargeable convenience, but those seeking improved speech clarity—especially in challenging listening environments—should consider higher-performing alternatives in this competitive OTC category.

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
Audien Atom X1.5
Phonak Sphere Infinio4.5
Speech in noiseNew
Audien Atom X1.0
Phonak Sphere Infinio4.7
Own voice
Audien Atom X2.3
Phonak Sphere Infinio2.3
Feedback handling
Audien Atom X5.0
Phonak Sphere Infinio3.6
Music streaming
Audien Atom X3.3
Phonak Sphere Infinio4.0
Overall fit score
Audien Atom X3.3
Phonak Sphere Infinio5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Audien Atom XPhonak Sphere Infinio
Ear CouplingClosed Vented Dome
Ear CouplingClosed Vented Dome
ReceiverIntegrated in device
ReceiverMedium-power
Fitting FormulaProprietary manufacturer default
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Listening ProgramConversation
Listening ProgramAutoSense OS (Automatic)
Volume Setting60% (6/10 volume)
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software VersionUnknown
Software Versionv10.0.0.2318
Tuning Adjustmentsn/a
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults
NotesTuned and Initial Fittings identical as further adjustments did not improve fitting.
Notesn/a