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Product Comparison

Jabra Enhance Select 300 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
Jabra Enhance Select 300 Hero
JabraSoundGrade A

Jabra Enhance Select 300

The Jabra Enhance Select 300 is a premium OTC hearing aid priced at $1,695 that earns an A grade with a SoundScore of 4.1/5 in our lab testing. This behind-the-ear device ranks #17 out of 65 OTC hearing aids tested, placing it in the top 25% of its category. In our standardized testing, speech clarity in quiet environments stands out as a notable strength, scoring 3.6/5—a solid result that sits 0.85 points above the category average. Feedback handling is excellent at 5.0/5, meaning users should experience stable performance without whistling during typical wear. Own-voice comfort also performs well at 3.5/5, nearly a full point above average, which can contribute to a more natural listening experience. Speech understanding in noisy environments presents a limitation, scoring 1.5/5—essentially at the category average but low in absolute terms. This is a common challenge across OTC devices, though users seeking strong noise performance may want to compare alternatives. Music streaming scores 2.6/5, which is above the category average by 0.68 points but mixed in absolute quality. The Enhance Select 300 offers rechargeable batteries and streaming compatibility with both iPhone and Android devices, along with hands-free functionality. It has earned Expert's Choice Awards in both 2023 and 2024. Shoppers in this price range should note that alternatives like the Lucid Tala and Audicus Omni 2 score higher overall, while options like the Jabra Enhance Pro 20 at Costco offer similar sound quality at a lower price point. This device is best suited for those prioritizing speech clarity in quieter settings and stable, feedback-free performance.

Expert Choice
Expert
Choice
Hero Image
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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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Jabra Enhance Select 3003.6
Phonak Sphere Infinio Ultra4.3
Speech in noiseNew
Jabra Enhance Select 3001.5
Phonak Sphere Infinio Ultra4.5
Own voice
Jabra Enhance Select 3003.5
Phonak Sphere Infinio Ultra2.8
Feedback handling
Jabra Enhance Select 3005.0
Phonak Sphere Infinio Ultra4.2
Music streaming
Jabra Enhance Select 3002.6
Phonak Sphere Infinio Ultra3.3
Overall fit score
Jabra Enhance Select 3004.2
Phonak Sphere Infinio Ultra5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Jabra Enhance Select 300Phonak Sphere Infinio Ultra
Ear CouplingTulip Dome
Ear CouplingEasyGuard Vented
ReceiverMedium-power
ReceiverMedium-power
Fitting FormulaProprietary manufacturer default
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Listening ProgramAll-Around (Automatic)
Listening ProgramAutoSense OS (Automatic)
Volume Setting80% (4/5 volume)
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software VersionUnknown
Software VersionV1.1.11.0
Tuning AdjustmentsProgrammed to N3 audiogram, 3-Band equalizer adjusted, Other settings at manufacturer defaults
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults