Back to Comparisons
Product Comparison

Lucid Ultra 128 vs RxEars Rxi

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
Lucid Ultra 128  Hero
LucidSoundScore 4.4Grade A

Lucid Ultra 128

The Lucid Ultra 128 is a premium behind-the-ear prescription hearing aid priced at $5,000, earning an A grade with a SoundScore of 4.4/5 in our lab testing. It ranks #17 among 39 prescription hearing aids tested, placing it in the top 41% of its category. Speech performance is where the Lucid Ultra 128 truly excels. In our lab testing, speech in quiet scored a strong 4.3/5, which is 0.95 points above the category average. Speech in noise performance reached 2.7/5, which sits above the category average by 0.59 points, though it remains mixed in absolute terms. This suggests the device handles conversational clarity well in our test scenarios, particularly in quieter environments. The device does face some challenges. Feedback handling scored just 1.7/5, falling 3.02 points below the category average of 4.72/5—a notable weakness compared to other prescription aids in our testing. Music streaming also came in below average at 2.3/5, which is 0.46 points under the category norm. Own-voice comfort scored a mixed 2.9/5, slightly above average. At this price point, several competitors in our database achieved higher overall scores, including the Phonak Sphere Infinio and Oticon Intent. The Lucid Ultra 128 features disposable batteries and supports both iPhone and Android streaming. It may appeal to users who prioritize speech clarity in quiet settings and are less concerned about feedback stability or music streaming fidelity in our standardized tests.

Expert Choice
Expert
Choice
RxEars Rxi Hero
RxEarsSoundScore 4.1Grade A

RxEars Rxi

The RxEars Rxi is a budget-priced prescription hearing aid in an invisible-in-ear style, earning an A grade with a SoundScore of 4.1/5 in our lab testing. At $499, it ranks #24 of 39 prescription hearing aids tested, placing it in the top 59% of its category. This device demonstrates notable strengths in speech understanding in quiet environments, scoring 4.3/5—a strong result that sits 0.89 points above the category average of 3.40/5. Feedback handling is excellent at 4.7/5, providing stable performance during movement without the whistling that can plague some hearing aids. Speech in noise performance is mixed at 2.1/5, essentially matching the category average. The RxEars Rxi has significant limitations to consider. Own-voice comfort scores low at 1.6/5, falling 1.10 points below the category average—users may notice their own voice sounds unnatural or boomy. Music streaming is not supported, scoring 0.0/5, which is 2.76 points below the category average. This device uses disposable batteries rather than rechargeables. The RxEars Rxi is best suited for users who prioritize discreet cosmetics and clear speech understanding in quieter settings, and who don't need music streaming capabilities. Those sensitive to own-voice quality or who frequently listen to streamed audio should explore alternatives.

Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Lucid Ultra 1284.3
RxEars Rxi4.3
Speech in noiseNew
Lucid Ultra 1282.7
RxEars Rxi2.1
Own voice
Lucid Ultra 1282.9
RxEars Rxi1.6
Feedback handling
Lucid Ultra 1281.7
RxEars Rxi4.7
Music streaming
Lucid Ultra 1282.3
RxEars Rxi0.0
Overall fit score
Lucid Ultra 1284.2
RxEars Rxi4.1

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Lucid Ultra 128RxEars Rxi
Ear CouplingClosed Vented Dome
Ear CouplingClosed Dome
ReceiverStandard
Receiver–
Fitting FormulaProprietary manufacturer default
Fitting Formula–
Listening ProgramLucid (Automatic)
Listening Program–
Volume Setting54% (Default 7/13)
Volume Setting–
Software VersionBT Firmware v12.0.29, Firmware v9.2.33
Software Version–
Tuning AdjustmentsProgrammed to N3 audiogram by Lucid team, LucidShape adjusted to match NAL-NL2 targets at 65 dB SPL, Other settings at manufacturer default
Tuning Adjustments–
NotesDefault programming was performed by Lucid team, further adjustments were limited as we did not have access to their proprietary software.
Notes–