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Eargo 8 Expert Review

Premium OTCReleased 2025

Our lab put the Eargo 8 through comprehensive acoustic testing to measure real-world sound performance. This independent review presents objective findings from controlled measurements, blind listening comparisons, and detailed amplification analysis.

See Price at Eargo
Dr. Steve TaddeiDr. Steve Taddei, Au.D. — Lab Director & Reviewer
Dr. Abram BaileyDr. Abram Bailey, Au.D. — Fact Checker / Editor
How We Test
Eargo 8 Hero
HearAdvisor
Eargo 8
3.3HearAdvisor SoundScoreGrade B
As it sounds out of the box
Bottom Line

The Eargo 8 is a premium invisible-in-ear OTC hearing aid best suited for users who prioritize discreet design and natural own-voice quality.

Top 71% of OTC Hearing Aid
Strengths
  • Strong feedback handling
  • Above-average own voice naturalness+0.69 vs category
  • Truly invisible in-ear design
Drawbacks
  • No music streaming capability
  • Low speech-in-noise performance
  • Premium price for mid-tier sound performance
Performance Breakdown

SoundScore: 5 Acoustic Dimensions

We measured speech-in-quiet, speech-in-noise, own-voice naturalness, feedback control, and music streaming to build a complete performance profile. The purple SoundScore graph is the overall result, and the five graphs after it break it into individual measurements for the selected fit. Each curve shows how scores are spread across all tested hearing aids, and the dot and number mark the score for Eargo 8.

SoundScore
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  • 1 product scored from 6.00 to 6.05
6.0
Choose your fit

Every hearing aid is lab-tested in two states — as it sounds out of the box, and after professional tuning. Switch fits to update the five metric graphs below.

As it sounds out of the box
Speech in quiet
New
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5.4

How clearly speech comes through in calm, one-on-one surroundings.

Speech in noise
New
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6.4

Speech understanding against loud background noise — the toughest everyday test.

Own voice
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4.8

How natural your own voice sounds while wearing the aids, without a boomy, plugged-up quality.

Music streaming
0
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5.0

Sound quality of music streamed to the hearing aids over Bluetooth.

Feedback handling
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5.0

Resistance to the whistling and squealing caused by acoustic feedback.

Bottom Line

Where the Eargo 8 Fits in the OTC Market

The Eargo 8 is a premium-priced OTC hearing aid ($2,399) that earns a B grade with a SoundScore of 3.3/5 in our lab testing. This invisible-in-ear device represents Eargo's 2025 flagship offering, featuring a rechargeable design that sits completely within the ear canal.

In our testing, the Eargo 8 showed mixed performance across key metrics. Speech clarity in quiet environments is a relative strength, scoring 0.27 points above the OTC category average. Own-voice comfort also performs well, measuring 0.69 points above average at 3.2/5—a solid result that suggests reduced occlusion effects during conversation. However, speech understanding in noisy environments scored 1.2/5, which is both low in absolute terms and 0.27 points below the category average.

The most significant limitation we measured was music streaming, which scored 0.0/5—nearly 2 points below the OTC average. This makes the Eargo 8 unsuitable for users who prioritize streaming audio quality. Feedback handling is strong in absolute terms at 4.2/5, though slightly below the category average.

At its premium price point, the Eargo 8 faces stiff competition. Several devices in our database deliver comparable or better sound performance at lower prices, including alternatives from Eargo's own lineup. The Eargo 8 is best suited for users who prioritize invisible cosmetics and own-voice comfort over streaming capability and value, and who primarily need help hearing speech in quieter settings.

Eargo 8 Hero
Eargo 8
VerdictGraphAudioLab NotesSpecsMore
Reliable & Repeatable Lab Results

Quality data starts with quality recordings. HearAdvisor worked with GRAS to build a no-compromise front end so every test is repeatable and reliable.

Learn more
Steve in HearAdvisor Lab

Amplification Analysis

Eargo 8 Insertion Gain and Target Matching

The graph below plots measured amplification against prescriptive targets across the frequency range. This visualization shows how closely the Eargo 8 delivers the gain prescribed for standardized hearing loss profiles.

Graph

Audio Samples

Eargo 8 Sound Captured Through Our Test Manikin

These recordings were made using a head-and-torso simulator fitted with the Eargo 8 under controlled lab conditions. Compare what the device captured against our unaided reference recording.

Eargo 8 Audio Samples

How this hearing aid sounds in our lab scenes. Compare it out of the box and after professional tuning.

Before you listen

  1. Use good-quality headphones.
  2. Take out your hearing aids while you compare.
  3. Play the to set a comfortable level, then leave it.
  4. Switch recordings while it plays. You won't lose your place.
Scene type

Scene type: Conversation

Quiet room

As tested out of the box
0:00
–:––

9 lab recordings of this product. They demonstrate relative processing in our lab and cannot predict an individual fitting outcome.

Test Documentation

Eargo 8 Fit Observations and Configuration Details

Our technicians documented observations from both the Initial and Tuned fit conditions during testing. Below you will find the specific settings and fit notes recorded for this device.

Lab Notes

Initial fit observations

In its initial fit configuration using a Power Dome with Slits coupling, the Eargo 8 achieved a normalized score of 3.3/5. Out-of-box performance showed solid feedback handling at 5.0/5, though speech clarity metrics were modest—speech in quiet scored 2.2/5 and speech in noise scored 1.0/5. Own-voice comfort measured 3.2/5, reflecting the relatively open dome design. Music streaming scored 0.0/5, indicating significant limitations for audio playback in the default setup.

Tuned fit observations

After tuning, the Eargo 8 improved to a normalized score of 3.5/5—a 0.2-point gain over initial fit. The same Power Dome with Slits coupling was retained. Speech in quiet improved notably to 3.1/5, while speech in noise showed modest improvement to 1.2/5. Feedback handling remained strong at 4.2/5, though below the initial perfect score as gain was adjusted. Own-voice comfort held steady at 3.2/5. Music streaming remained at 0.0/5, unchanged from initial fit.

Test configuration

Initial Fitting
Tuned Fitting
Ear Coupling
Power Dome with Slits
Power Dome with Slits
Receiver
Integrated in device
Integrated in device
Fitting Formula
Proprietary manufacturer default
Proprietary manufacturer default
Listening Program
Restaurant
Restaurant
Volume Setting
Manufacturer defaults
100% (Max volume)
Software Version
Software v5.7.0
Software v5.7.0
Tuning Adjustments
On-ear assessment performed, Noise Reduction set to High, Other settings at manufacturer defaults
On-ear assessment performed, Noise Reduction set to High, Treble at 2 above minimum, Bass at maximum, Other settings at manufacturer defaults
Specs
Invisible in Ear
Invisible in Ear
Rechargeable Batteries
Rechargeable Batteries

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