Eargo 8 vs. Signia Silk Charge&Go IX

Check out our comparison of the Eargo 8 vs Signia Silk Charge&Go IX. Listen to audio samples and see how the two hearing aids differ in terms of sound performance, features, accessories, and more.

Score
2.6
Eargo 8
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Eargo

8

SoundScore 2.8/5
$2,699 per pair
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Score
3.4
Signia Silk IX 7IX
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SoundScore 3.7/5
$3,298 per pair
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8
$2,699 per pair
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Silk Charge&Go IX
$3,298 per pair
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Product Overview

8
Silk Charge&Go IX
Form Factor
Form FactorNon-custom device that typically sits completely inside the ear canal. Some of the device may be visible to the naked eye.
Form FactorNon-custom device that typically sits completely inside the ear canal. Some of the device may be visible to the naked eye.
Expert Rating
Score
2.6
Score
3.4
User Rating
2.45 reviews
Hearing Loss LevelHearing Loss LevelThis represents HearingTracker's best guess on suitability. Please consult a licensed audiologist to confirm your own candidacy for this device.
MildModerate
MildModerate
Product Features
RechargeableIP68
Rechargeable

Expert Ratings

Compare comprehensive test results and expert opinions.

8
Silk Charge&Go IX

HearingTracker Score

8
2.6BELOW AVERAGE

Eargo 8 is Eargo's latest flagship OTC hearing aid, featuring automatic sound environment adjustments, enhanced audio fidelity, and patented device-health monitoring. Designed for adults with mild to moderate hearing loss, it emphasizes user convenience, extended battery life, and robust customer support.

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Silk Charge&Go IX
3.4AVERAGE

The Signia Silk Charge&Go IX is a groundbreaking, rechargeable completely-in-canal (CIC) hearing aid designed for people with mild to moderate hearing loss. It offers up to 28 hours of battery life, instant fit with soft silicone ear tips, and wireless control via the Signia app, but lacks Bluetooth streaming and can be challenging to handle due to its small size.

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HearAdvisor SoundScore

8
2.8BELOW AVERAGE

Eargo 8 achieved a SoundScore of 2.85/5 and a SoundGrade of C in HearAdvisor lab testing. It ranked #39 of 61 OTC Hearing Aid devices tested. The OTC Hearing Aid category average SoundScore was 3.47/5.

Silk Charge&Go IX
3.7AVERAGE

Signia Silk Charge&Go IX achieved a SoundScore of 3.70/5 and a SoundGrade of B in HearAdvisor lab testing. It ranked #25 of 35 Prescription Hearing Aid devices tested. The Prescription Hearing Aid category average SoundScore was 3.91/5.

Build Quality

8
4.3AVERAGE

Eargo 8 hearing aids appear to be well build with an IP68 rating, offering great protection against moisture and debris. The portable charging case is also a nice addition and should protect Eargo well when not in use.

Silk Charge&Go IX
4.7EXCELLENT

Signia Silk C&G IX have an impressive build quality, featuring a top-of-the-line IP68 ingress rating, which is crucial for nearly invisible hearing aids. They also come with a durable portable charging case.

Battery

8
3.3BELOW AVERAGE

Eargo are extremely small making their 16 hour rechargeable battery life impressive. The case offers additional on-the-go power and I found the magnetic charging bays a nice easy to use addition.

Silk Charge&Go IX
4.4ABOVE AVERAGE

Silk IX provide up to 20 hours of use per charge which is exceptional given their extremely small size. Recharging takes up to 4 hours, which is longer than some other models, but this isn't a significant drawback given their all-day battery life.

App Features

8
3.5BELOW AVERAGE

I found Eargo's app to be packed full of useful features like the Sound Match hearing assessment and automatic noise reduction controls. You have plenty of options for personalization though adjustments are not always reliable as Eargo relies on phone speaker commands instead of Bluetooth.

Silk Charge&Go IX
3.4BELOW AVERAGE

While Silk IX hearing aids are not Bluetooth compatible, they still work with Signia's app using high-frequency coded signals. This is a valuable addition, although the communication is less stable than Bluetooth and the app offers fewer features compared to other Signia models.

Comfort

8
3.9BELOW AVERAGE

Comfort will vary by individuals depending on your tolerance to a deeper fitting hearing aid. Overall, I found them moderately comfortable through they can cause a tickling ear sensation due to their fit.

Silk Charge&Go IX
4.5EXCELLENT

I found Silk IX very comfortable for an instant-fit nearly invisible hearing aid. Your hearing care provider should ensure they are fitted for optimal comfort and hearing benefit.

Design

8
5.0EXCELLENT

Eargo's instant-fit, completely-in-the-canal, style is unique discrete. If you are interested in a nearly-invisible OTC hearing aid you will love their design.

Silk Charge&Go IX
5.0EXCELLENT

Silk IX is another unique offering from Signia, featuring an instant fit design with silicone ear tips that is nearly invisible. Its extremely small and discreet design may, however, pose challenges for those with limited dexterity and or vision.

Value

8
2.0BELOW AVERAGE

Eargo 8 has a value score of 2.0/5 based on lab performance and public display price.

Silk Charge&Go IX
2.4BELOW AVERAGE

Signia Silk Charge&Go IX has a value score of 2.4/5 based on lab performance and public display price.

Handling

8
3.0BELOW AVERAGE

Handling can be challenging with Eargo 8 due to the small size and reliance on tap controls. Furthermore, Eargo relies on acoustic indicators for wireless communication, which is less reliable than Bluetooth and caused me several problems.

Silk Charge&Go IX
4.0AVERAGE

I did not run into any issues while using Silk IX hearing aids. They are very easy to use once setup by your hearing care provider. Silk also have large color indicators making it easy to distinguish the left from the right hearing aids.

Pro Support

8
1.0BELOW AVERAGE

Eargo is one of the first direct to consumer hearing aids, but support is unfortunately limited to to their Client Care team and personal hearing professionals. While Eargo claims they work alongside audiologists, it is not the same as direct professional hearing care.

Silk Charge&Go IX
4.0ABOVE AVERAGE

You should receive quality hearing care and support from your provider. The Signia App should further enhance your experience with AI help and remote assistance should your provider offer telehealth services.

Lab Recordings

Listen to direct output recordings from our acoustic test lab.

8
Silk Charge&Go IX
Busy CafeBusy CafeSpeech intelligibility improvement in loud environments
Hear this scene unaided, for comparison
8
Silk Charge&Go IX
Quiet OfficeQuiet OfficeSpeech intelligibility improvement in quiet and moderate environments
Hear this scene unaided, for comparison
8
Silk Charge&Go IX

HearingTracker partners with HearAdvisor to provide recordings and performance data from an acoustic laboratory that follows standard scientific procedures. All hearing aids are fitted and performance-tested for mild sloping to moderate hearing loss. All audio samples cutoff above 10kHz.

Accessories

Compatible accessories for each hearing aid

8
Silk Charge&Go IX
Battery Charger

Charger (Eargo 8)

The Eargo 8 charger is a compact, USB-C and wireless-compatible case that provides up to 14 full charges, with clear LED indicators for device and case battery levels, Bluetooth pairing, and error states. It includes cradles with charging contacts, a reset button, and requires regular cleaning to ensure optimal device performance and hygiene.

None
Remote Control

Eargo App+1

The Eargo app allows users to perform Sound Match personalization, select listening programs, and control volume and tone.

miniPocket

Enables push-button remote control of hearing aid functions.

Signia App+2

The Signia App provides a remote control, directional hearing control, telecare access, and access to connectivity and streaming settings.

Hardware

8
Silk Charge&Go IX
IP RatingIP RatingIP Ratings rate sealing effectiveness of hearing aids against intrusion from foreign solid matter (dirt, dust) and moisture.
IP68
No
Rechargeable BatteriesRechargeable BatteriesCharge your batteries overnight in a docking station and get a full day's use (in most cases) of battery life the following day.
Lithium-ion
Lithium-ion

Software Features

8
Silk Charge&Go IX
Adjustment BandsAdjustment BandsThese are frequency-divided sections that can be adjusted in a hearing aid in order to amplify sounds. Although there are rarely more than 10 frequencies measured in a hearing assessment, having more bands that can be adjusted may allow for improved speech understanding and user comfort.
No
20
Adjustment SynchronizationAdjustment SynchronizationThis feature allows for a more pleasant listening experience by ensuring that both hearing aids process sound the same way. If one hearing aid changes its processing in response to noise or speech, it will send a wireless signal to the other hearing aid so both process sound in the same way.
No
e2e wireless 4.0e2e wireless 4.0Control coupling, synchronization, binaural directionality, Spatial Speech Focus, CROS/ BiCROS.
DirectionalityDirectionalityDepending on the types and number of microphones a hearing aid has, the hearing aid may be able to boost sounds from specific directions (by reducing sounds from other directions). This can be helpful to focus on a speaker directly in front of the hearing aid user, as well as to give the user information about where different sounds are coming from.
No
Binaural OneMic directionalityBinaural OneMic directionalityEach CIC receives the sound and information not only from its own microphone but also from the microphone of the other hearing aid. This creates a virtual four-microphone network, allowing the pair of hearing aids to create a directional beam. In addition, the natural pinnae effect of the outer ear supports this directionality and makes the listening experience even more natural.
Echo ReductionEcho ReductionThis feature improves speech audibility by reducing the “blurring” of speech sounds that can occur in the presence of echoes.
No
Auto EchoShieldAuto EchoShieldAutomatically creates a more comfortable hearing experience in high-reverb environments leading to increased speech clarity and natural room perceptions.
Environmental AdaptationEnvironmental AdaptationThe hearing aid can detect different acoustical environments, like speech in noise, and adjust the sound of the hearing aid accordingly to drive comfort or speech understanding, etc.
Smart Sound AdjustSmart Sound AdjustAutomatically detects your surroundings and applies fast-acting noise reduction without manual adjustments.
No
Extended bandwidthExtended bandwidthHearing aid provides amplification at frequencies (pitches) higher than the typical hearing aid.
No
12kHz
Extended Dynamic RangeExtended Dynamic RangeExtended dynamic range typically makes louder sound clearer. This may help with the reproduction of loud music or loud speech in a very noisy environment.
No
Yes
Feedback SuppressionFeedback SuppressionIf any sound amplified by the hearing aid escapes the ear canal, it may reach the hearing aid’s own microphone and cause a harsh whistling noise. Some hearing aids are able to recognize when this feedback occurs and reduce or eliminate it.
No
Feedback cancellationFeedback cancellationHigh-speed monitoring and control of feedback risk in individual processing channels.
Listening ProgramsListening ProgramsNumber of manually accessible listening programs (using push button, remote, app, or other switching method)
4
6
Noise ReductionNoise ReductionThis feature uses modern hearing aids’ processing power to examine the incoming sound signal, determine if noise is present and reduce the volume of the troublesome sound to increase comfort.
Yes
SoundSmoothing™: 3SoundSmoothing™Reduces the sound of clattering cutlery and rustling newspaper, etc.
Processing ChannelsProcessing ChannelsThese are all the frequency-divided sections the hearing aid is able to examine at a single time. The hearing aid uses this information to determine whether the contents of each section are noise, speech, or something else and amplify the sound in each section accordingly.
No
48
Self-fittingSelf-fittingThis hearing aid allows you to fit yourself without professional assistance. Typically found in OTC products.
  • Tuned based on hearing test through device
  • Tuned based on audio preference selections
No
Tinnitus ReliefTinnitus ReliefTinnitus, or ringing in the ears, can be addressed by hearing aids in several different ways, such as introducing a soft therapeutic signal or targeted notched noise.
No
Yes
Unique Amplification StrategyUnique Amplification StrategyHearing aids all process sounds a little bit differently. Sometimes it varies even within one model.
Superior HD SoundSuperior HD SoundEnhanced sound quality with improved distinction across frequencies for more natural listening.
Advanced Focus Streams: 3
Wind Noise ReductionWind Noise ReductionAs wind blows against the microphones of hearing aids, unpleasant noise may be generated. Some hearing aids have the ability to recognize this wind noise and reduce its level. Such reductions may also affect the audibility of desired sounds, like speech.
No
eWindScreen binauraleWindScreen binauralBinaural processing of the audio signal (using Ultra HD e2e) delivers superb performance in asymmetrical wind environments.