We independently review each item we recommend and appreciate your trust and support. When you buy through our links, we may earn a commission.Learn more.

ReSound Savi vs. Signia Silk Charge&Go IX

Check out our comparison of the ReSound Savi 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.

ReSound Savi microRIE SA4
Add Product
Featured Products
ReSound

Savi microRIE SA4

$1,500 per pair
Shop Now ↗
Score
3.4
Signia Silk IX 7IX
Add Product
Featured Products
Signia

Silk IX 7IX

SoundScore 3.7/5
$3,298 per pair
Shop Now ↗
Savi
$1,500 per pair
Shop Now ↗
Silk Charge&Go IX
$3,298 per pair
Shop Now ↗

Product Overview

Savi
Silk Charge&Go IX
Form Factor
Form FactorThis type of hearing aid sits behind the ear. A wire runs along the top of the ear and down to a speaker sitting inside the ear canal. An custom-fitted mold may be required.
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
N/A
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.
MildModerateSevere
MildModerate
Product Features
Hands-freeRechargeableiPhoneAndroidIP68
Rechargeable

Expert Ratings

Compare comprehensive test results and expert opinions.

Savi
Silk Charge&Go IX

HearingTracker Score

Savi

Not yet rated by our experts

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.

Read full review

HearAdvisor SoundScore

Savi

Not yet rated by our experts

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

Savi

Not yet rated by our experts

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

Savi

Not yet rated by our experts

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

Savi

Not yet rated by our experts

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

Savi

Not yet rated by our experts

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

Savi

Not yet rated by our experts

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

Savi

Not yet rated by our experts

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

Savi

Not yet rated by our experts

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

Savi

Not yet rated by our experts

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.

Savi
Silk Charge&Go IX
Busy CafeBusy CafeSpeech intelligibility improvement in loud environments
Hear this scene unaided, for comparison
Savi

Lab recordings not yet available

Silk Charge&Go IX
Quiet OfficeQuiet OfficeSpeech intelligibility improvement in quiet and moderate environments
Hear this scene unaided, for comparison
Savi

Lab recordings not yet available

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

Savi
Silk Charge&Go IX
Battery Charger

Premium Charger

Charges device when connected to power outlet, and also holds up to three full charges due to its onboard battery.

Standard Charger

Charges device when connected to power outlet.

Desktop Charger

A desktop charger for ReSound hearing aids. Does not charge on the go.

None
Remote Control

Unite Remote Control 2

Gives you push-button control of volume and program settings on your hearing aids and lets you manage streaming accessories.

Unite Phone Clip++2

Small enough to clip onto your shirt collar, it streams phone calls and audio to your hearing aids from any Bluetooth-enabled mobile phone or smartphone.

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.

Remote Microphone

Micro Mic

A matchbook-sized remote wireless microphone that lets you hear from a distance up to 80 feet away.

Multi Mic++3

The Multi-Mic+ is a versatile wireless accessory designed to help hearing aid users hear more clearly in challenging situations. It can be clipped onto clothing or worn on a lanyard to pick up a speaker’s voice and stream it directly to compatible hearing aids, or it can be placed on a table to capture group conversations in “table mode.” In addition to acting as a remote microphone, the Multi-Mic+ connects to other audio sources through a built-in telecoil, FM receiver (optional), or a standard 3.5 mm line-in cable, allowing users to stream sound from loop systems, FM transmitters, computers, TVs, or other devices. With a streaming range of up to 25 meters (82 feet), automatic mode switching, volume controls, and app integration, it provides flexible, high-quality sound input across a wide variety of listening environments

None
Smartphone App

ReSound Smart 3D app+2

Adjusts sound, volume and balance settings, tinnitus settings, and allows your provider to make remote adjustments to your hearing aid programs.

None
TV Streamer

Unite TV Streamer 2

Streams stereo sound from the television directly to your hearing aids from up to 22 feet away.

ReSound TV Streamer+

The ReSound TV-Streamer+, which supports Bluetooth Auracast, streams high-quality sound with speech clarity directly to your hearing aids at the volume you prefer.

None

Hardware

Savi
Silk Charge&Go IX
Bluetooth® AudioBluetooth® AudioThis hearing aid is capable of streaming Bluetooth® audio certain phones and/or devices.
  • Made for iPhone (MFi)
  • Android (ASHA)
  • Bluetooth® Low Energy (LE)
  • Bluetooth® Auracast™
No
Disposable BatteriesDisposable BatteriesCommon disposable batteries last anywhere from a few days to two weeks or more. For more information Google "how long do hearing aid batteries last" and click on the Hearing Tracker link.
312
No
Hands-Free CallingHands-Free CallingIt is possible to have a hands-free phone call with this hearing aid. You are not required to hold the phone up to your mouth.
  • Made for iPhone (MFi)
  • Accessory required (Android)
No
IP RatingIP RatingIP Ratings rate sealing effectiveness of hearing aids against intrusion from foreign solid matter (dirt, dust) and moisture.
IP68
No
Push ButtonPush ButtonThe hearing aid features a push button which allows toggling across different sound processing programs
  • Program control
  • Volume Control
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
Tap ControlsTap ControlsThe hearing aid may be controlled by physically tapping it with your fingers.
  • Accept/end calls
No
TelecoilTelecoilThe hearing aid is able to pick up audio from landline telephones or public audio systems without using its acoustic microphones. This minimizes background noise and improves clarity and understanding, even over great distances. At performing arts venues, events, government meetings, etc., look for assistive listening systems (hearing loop, FM, and infrared systems), which must be provided at no cost under the Americans with Disabilities Act (ADA) and other international regulations.
Yes
No
Volume RockerVolume RockerA volume rocker or wheel to allows the adjustment of volume with a finger.
Yes
No

Software Features

Savi
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.
12
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.
Adaptive Directionality™Adaptive Directionality™Adaptive Directionality slowly transitions between omnidirectional and directional settings based on an analysis of the acoustic environment.Binaural Directionality™ IIIBinaural Directionality™ IIIBinaural Directionality III provides the ultimate balance for supporting natural hearing: a signal-to-noise ratio improvement similar to bilateral directional microphones and a significant benefit in ease of listening compared to other directional microphone strategies.
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.
Environmental OptimizerEnvironmental OptimizerProvide automatic adjustment of hearing instrument settings.
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.
DFS Ultra IIIDFS Ultra IIIReduces feedback while preserving amplification without compromising sound quality.
Feedback cancellationFeedback cancellationHigh-speed monitoring and control of feedback risk in individual processing channels.
Frequency LoweringFrequency LoweringUnderstanding certain speech sounds is dependent on the high frequency parts of these sounds. For individuals with high frequency hearing loss, this feature can take high frequency speech information and move it to lower frequencies where it will be audible.
Sound ShaperSound ShaperSound Shaper is the only frequency compression technology that moves high-frequency sounds down in the spectrum while maintaining a proportional relationship between input and output frequencies. So Sound Shaper improves the audibility of speech cues that would otherwise be lost, while maintaining the best sound quality possible.
No
Listening ProgramsListening ProgramsNumber of manually accessible listening programs (using push button, remote, app, or other switching method)
No
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.
2 settings
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
Streaming Bass BoostStreaming Bass BoostBoosts bass when streaming audio
Yes
No
Sudden Loud Noise ReductionSudden Loud Noise ReductionThis feature detects loud sounds and reduces their volume to a comfortable level. Though not a replacement for hearing protection, this technology can greatly improve listener comfort.
Yes
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.
No
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.
Yes
eWindScreen binauraleWindScreen binauralBinaural processing of the audio signal (using Ultra HD e2e) delivers superb performance in asymmetrical wind environments.