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Eargo 8 vs. Phonak Bolero M

Check out our comparison of the Eargo 8 vs Phonak Bolero M. 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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Phonak Bolero M M M90
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Phonak

Bolero M M M90

$4,598 per pair
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8
$2,699 per pair
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Bolero M
$4,598 per pair
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Product Overview

8
Bolero M
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 FactorThis type of hearing aid is fitted behind the ear. Sound is channeled to the ear through either a thin or standard tube. A custom-fitted mold may or may not be required.
Expert Rating
Score
2.6
N/A
User Rating
—
4.12 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
MildModerateSevere
Product Features
RechargeableIP68
Hands-freeiPhoneAndroidTelecoilIP68

Expert Ratings

Compare comprehensive test results and expert opinions.

8
Bolero M

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.

Read full review
Bolero M

Not yet rated by our experts

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.

Bolero M

Not yet rated by our experts

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.

Bolero M

Not yet rated by our experts

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.

Bolero M

Not yet rated by our experts

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.

Bolero M

Not yet rated by our experts

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.

Bolero M

Not yet rated by our experts

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.

Bolero M

Not yet rated by our experts

Value

8
2.0BELOW AVERAGE

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

Bolero M

Not yet rated by our experts

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.

Bolero M

Not yet rated by our experts

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.

Bolero M

Not yet rated by our experts

Lab Recordings

Listen to direct output recordings from our acoustic test lab.

8
Bolero M
Busy CafeBusy CafeSpeech intelligibility improvement in loud environments
Hear this scene unaided, for comparison
8
Bolero M

Lab recordings not yet available

Quiet OfficeQuiet OfficeSpeech intelligibility improvement in quiet and moderate environments
Hear this scene unaided, for comparison
8
Bolero M

Lab recordings not yet available

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
Bolero M
Accessory Connectivity
None

RogerDirect™

As a break-through in hearing technology, Marvel hearing aids feature RogerDirect™ which allows the Roger technology to stream directly to Marvel hearing aids without having to attach an external receiver. This major innovation makes Roger technology easier to use and more attractive for a broader group ranging from mild to profound hearing loss. Roger technology makes use of intelligent and adaptive algorithms that continuously measure and precisely analyze noise levels to keep the Roger signal clearly audible above the background noise.

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 AdjustmentsRemote AdjustmentsAllows your hearing provider to make adjustments to your hearing aids remotely (from home, etc)
None

myPhonak App+2

The myPhonak app allows you to access remote support, information about their hearing aids, and a hearing diary. The app also allows you to adjust the volume and pitch of your hearing aids, and change program settings.

Remote Control

Eargo App+1

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

RemoteControl

The Phonak RemoteControl provides a discreet way to control your Phonak hearing aids.

Remote Mic Neckloop
None

Roger MyLink

Remote Microphone
None

Roger Pen

Handy microphone for various listening situations. Thanks to its portable design, it can be conveniently used where additional support is needed over distance and in noise. It can also transmit the sound of multimedia devices e.g. T.V. and has wideband Bluetooth for cellphone calls.

Roger Table Mic II+1

Phonak Roger Table Mic II is a microphone dedicated for working adults who participate in various meetings. It selects the person who’s talking and switches automatically between the meeting participants.

Roger EasyPen+2

An effective yet simple microphone with only two buttons for clients who desire ultimate simplicity with full Roger performance, including listening to multimedia.

PartnerMic™

Discreet remote microphone that helps to boost your partners voice in one-to-one conversations in noise.

TV Streamer
None

Roger Select™+4

Phonak Roger Select is a microphone specifically designed to help boost your hearing performance and keep you at the heart of the conversation.

TV Connector

The Phonak TV Connector is a wireless accessory that streams audio directly from your TV or stereo system to your Phonak hearing aids, transforming them into wireless stereo headsets. Enjoy high-quality sound, independent volume control, and a long transmission range of up to 15 meters.

Roger On+1

Phonak Roger On is an advanced remote mic accessory developed by Phonak. It is designed to improve speech understanding in noisy environments, over distance, and when many people are speaking simultaneously. Equipped with MultiBeam 2.0 Technology, it provides a boost in understanding by capturing voices from all directions. The Roger On can connect to a variety of multimedia devices and is fully compatible with almost all hearing aids and cochlear implants that have a T-coil or a Roger receiver.

Hardware

8
Bolero M
Bluetooth® AudioBluetooth® AudioThis hearing aid is capable of streaming Bluetooth® audio certain phones and/or devices.
No
  • Bluetooth® (A2DP)
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.
No
312
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.
No
  • Bluetooth® (HFP)
IP RatingIP RatingIP Ratings rate sealing effectiveness of hearing aids against intrusion from foreign solid matter (dirt, dust) and moisture.
IP68
IP68
Push ButtonPush ButtonThe hearing aid features a push button which allows toggling across different sound processing programs
No
  • Program control
  • Volume Control
  • Mute control
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
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.
No
Yes
Volume RockerVolume RockerA volume rocker or wheel to allows the adjustment of volume with a finger.
No
Yes

Software Features

8
Bolero M
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
QuickSyncQuickSyncOne touch on the program selection button or volume control results in instant identical change in the other instrument.
Audio Stream MixerAudio Stream MixerAllows the user to adjust the volume of the audio stream relative to the microphone input using the push button or volume control on the hearing aid unit.
No
Environmental BalanceEnvironmental BalanceEnvironmental balance is a volume modification capability in Phonak Audéo B-Direct hearing aids that allows clients to adjust the volume of the streamed signal versus the surrounding environmental sounds by the press of the volume control.
Automatic Phone ProgramAutomatic Phone ProgramHearing aids with this feature can detect when a phone is placed near them and automatically switch to a phone program. In this setting, the hearing aids will reduce background noise and increase the volume of the phone.
No
EasyPhoneEasyPhoneAutomatically selects your telephone program when the telephone handset is held close to your ear
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
UltraZoom: PremiumUltraZoomDirectional microphone technology is a proven method of effectively improving speech intelligibility in background noise. UltraZoom is the adaptive multi-channel beamforming technology, automatically available in AutoSense OS or in a manual program.
Ear SimulationEar SimulationThe outer ear, or pinna, can have a significant effect on the frequency shape of sound arriving at your inner ear. Some hearing aids mimic the "pinna effect" when producing sound, to deliver more natural sound to the listener.
No
Real Ear SoundReal Ear SoundReal Ear Sound simulates the performance characteristics of the pinna. This restores localization and the ability to experience natural sound perception.
Echo ReductionEcho ReductionThis feature improves speech audibility by reducing the “blurring” of speech sounds that can occur in the presence of echoes.
No
EchoBlockEchoBlockEchoBlock improves listening experience in reverberant environments like large assembly halls, places of worship and rooms with reflective surfaces.
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.
AutoSense OS: 3.0AutoSense OSHearing aids with AutoSense OS recognize and automatically adapt to more of your client’s listening situations than ever before. AutoSense OS accurately captures and analyzes the sound environment, then precisely blends feature elements from multiple programs in real time to provide a seamless listening experience.
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
WhistleBlockWhistleBlockWhistleBlock differentiates between naturally occurring feedback-like sounds and true feedback. This means increased audibility and sound quality that is free from annoying feedback.
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.
No
SoundRecover2SoundRecover2The new SoundRecover2 algorithm aims to restore the audibility of relevant high frequency sounds while leaving intact the low frequency structures important for good sound quality. The new frequency lowering scheme retains the essence of the original SoundRecover, utilizes an adaptive algorithm and an additional cut-off frequency in order to successfully extend these benefits to those with more extreme severe-to-profound hearing loss.
Listening ProgramsListening ProgramsNumber of manually accessible listening programs (using push button, remote, app, or other switching method)
4
3
New User AdaptationNew User AdaptationProvider may set the hearing aid to gradually get louder over the first few weeks or months of a new hearing aid fitting. This can be convenient for new users who want to experience maximum benefit without making a lot of trips to the provider for tune ups.
No
auto Acclimatizationauto Acclimatizationauto Acclimatization is used to automatically increase the client's amplification, while the client is using the device.
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
NoiseBlockNoiseBlockHigh-resolution noise cancellation - NoiseBlock Processing is particularly effective at reducing uncomfortable environmental noises. It can recognize the subtle differences between speech and non-speech sounds, removing noise while maintaining audibility. more
Occlusion ReductionOcclusion ReductionWhen ears are plugged, or occluded, by hearing aids the low frequencies from one’s own voice are amplified and may be uncomfortable. This effect is typically reduced in hearing aids through venting or open-fit models. In some cases the perception of occlusion may also be reduced through software by adjusting the acoustic output of the hearing aid.
No
AOVAOVAcoustically Optimized Venting (AOV) reduces occlusion to the lowest level possible by optimizing the fitting calculation.
Phone in StereoPhone in StereoThis feature allows input from a phone presented to one hearing aid to be transmitted to both hearing aids at the same time, improving speech understanding.
No
DuoPhoneDuoPhoneWith DuoPhone, as soon as the phone is held to the ear the signal is heard in both ears. Background noise is reduced and clarity significantly improved.
Preference AdaptationPreference AdaptationIf a hearing aid user frequently adjusts the volume or program settings of their devices, some hearing aids will recognize when and where these changes are made and begin automatically making these changes in those settings.
No
User Preference TuningUser Preference TuningRemembers adjustments you make with FlexControl and FlexVolume and applies them automatically for a hearing aid more in tune with your preferences.
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
Spatial Noise CancellationSpatial Noise CancellationThis feature recognizes where sounds are coming from and can reduce noise coming from behind or to the side of the listener. This helps the listener focus on the speaker, usually in front of them.
No
SNR-BoostSNR-BoostThe SNR boost is what we call a "spatial noise canceller." This means that when the hearing instruments are in the UltraZoom mode, they will analyze the signal to noise ratio in both the front and back planes. Then, the system will look for where there is a poor signal-to-noise ratio and it will apply another level of noise canceling on top of the standard noise canceling that is only active when the aids are in the directional mode. This goes beyond what we are already doing with multichannel adaptive directionality in terms of improving signal to noise ratio. Essentially, this minimizes noise for the client when they're in a very noisy environment. UltraZoom is part of the universal automatic program, SoundFlow. - Source: http://www.audiologyonline.com/interviews/interview-with-nathan-schau-au-1334
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.
No
SoundRelaxSoundRelaxSoundRelax cushions otherwise unpleasant impulse sounds without affecting speech clarity or causing unnatural perception of other sounds.
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
Tinnitus BalanceTinnitus BalanceThe Tinnitus Balance noise generator generates a broadband sound for use in tinnitus management therapies.
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.
No
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
WindBlockWindBlockWindBlock utilizes a wind identification and classification system. The powerful, adaptive algorithm automatically suppresses wind noise. It allows wearers to enjoy the outdoors without compromise.