Yes. Infinio Ultra scored 4.4/5 on tuned lab testing for speech in noise, well above Horizon Go IX's 2.7/5, making it the stronger pick for loud, crowded environments.
Check out our comparison of the hear.com Horizon Go IX vs Phonak Audéo Infinio Ultra. Listen to audio samples and see how the two hearing aids differ in terms of sound performance, features, accessories, and more.
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Summarized with AI assistance from our human-researched product information, in-lab testing, objective sound measurements, and expert ratings.
The real choice is between Horizon Go IX's smaller, more discreet shape and Infinio Ultra's markedly stronger performance in noisy environments for about $350 less.
Choose the hear.com Horizon Go IX if you want a smaller, more discreet RIC with hands-free calling and a polished app, and don't need the strongest possible performance in loud noise.
Choose the Phonak Audéo Infinio Ultra if hearing speech in noisy places is your top priority and you're willing to accept a bulkier body for a lab-measured speech-in-noise score of 4.4/5, while also paying roughly $350 less.
Infinio Ultra scored 4.4/5 on tuned lab testing for speech in noise versus 2.7/5 for Horizon Go IX, a large gap that matters most in restaurants, meetings, and other loud settings.
Infinio Ultra earned a 4.58/5 SoundScore (A grade) against Horizon Go IX's 4.16/5 (also A grade), with Infinio Ultra's edge concentrated in noisy-environment clarity rather than quiet speech, where both score similarly well.
Our review notes Infinio Ultra's dual-chip design makes it notably larger than typical RICs, while Horizon Go IX keeps a more conventional, sleeker RIC shape that's easier to conceal.
Infinio Ultra runs about $350 less per pair than Horizon Go IX, a modest but real gap given both sit near the $4,600-$5,000 mark.
Compare comprehensive test results and expert opinions.
Horizon Go IX is a top-tier, Signia-based rechargeable RIC that pairs excellent lab-verified speech performance with standout hands-free Bluetooth and a genuinely useful app suite, though its music streaming is only average for the open-fit form factor and many “unique” perks mirror what you can get from comparable WSA models.
Read full reviewPhonak’s Infinio Sphere delivers genuinely standout speech clarity in loud, noisy places thanks to its DEEPSONIC “Sphere mode,” but you’ll trade some discretion and may wrestle with fit or Bluetooth pairing to get that top-tier performance.
Read full reviewHear.com Horizon Go IX achieved a SoundScore of 4.4/5 and a SoundGrade of A in HearAdvisor lab testing. It ranked #17 of 36 Prescription Hearing Aid devices tested. The Prescription Hearing Aid category average SoundScore was 4.13/5.
Phonak Sphere Infinio Ultra achieved a SoundScore of 4.9/5 and a SoundGrade of A in HearAdvisor lab testing. It ranked #2 of 36 Prescription Hearing Aid devices tested. The Prescription Hearing Aid category average SoundScore was 4.13/5.
Horizon Go IX have an impressive build quality, featuring a top-of-the-line IP68 ingress rating. They also come with a robust portable charging case.
Phonak Audéo Sphere Ultra have an excellent build quality with a robust, portable charging case and a high ingress rating of IP68.
Horizon hearing aids offer an impressive 28 hours of use per charge, which is plenty to get you through the day. Recharging takes around 3 hours, but you can always get an addition 6 hours of use if needed with Horizon’s 30-minute quick charge feature.
Audéo Infinio Ultra offer around 17 hours of use per charge under normal use and streaming conditions. When using the new Sphere mode, battery life is around 10 hours which is an improvement over the original Sphere Infinio model. They take 3 to 4 hours to recharge, and a 30-minute quick charge can provide an additional 6 hours of use.
Horizon Go IX are Bluetooth compatible with both iOS and Android devices, allowing for audio streaming and hands-free calling.
Phonak Infinio Ultra are compatible with both iOS and Android, offering wireless audio streaming and hands-free calls. Pairing is now easier directly from your phone's Bluetooth menu.
The Horizon app has a user-friendly interface and modern, appealing design. It includes practical features like the ability to control the focus of your hearing aids and a tonal balance slider. Additionally, you will find preset modes which can help improve your listening experience depending on the environment you are in.
I found the MyPhonak Hearing Aid app easy to use with many useful features, including health and fitness tracking.
I found Horizon IX to be very comfortable thanks to their ergonomic shape and earwire design. Your hearing care provider should ensure they are fitted for optimal comfort and hearing benefit.
Phonak Audéo Sphere Infinio Ultra were extremely comfortable and lightweight in my ears. In general, hearing care providers can make numerous physical changes to prescription hearing aids to improve comfort.
Horizon IX features a modern, sleek design and is available in a variety of colors.
Phonak's new Audéo Sphere Infinio Ultra model shares the same notably larger size as the original Phonak Infinio Sphere. This is needed for its increased AI processing. While the larger size may be more noticeable, Sphere Ultra remains comfortable, and your provider should have no trouble adjusting the fit to your preference.
Hear.com Horizon Go IX has a value score of 3.1/5 based on lab performance and public display price.
Phonak Sphere Infinio Ultra has a value score of 3.5/5 based on lab performance and public display price.
I did not run into any issues while using Horizon Go IX hearing aids. They are very easy to use once setup by your hearing care provider. First-time users may need some practice to get accustomed to inserting the receiver-in-ear style properly.
Infinio Ultra are easy to use and adjust using either the large multi-function button or MyPhonak app. I had no issues making adjustments with either.
You should receive quality hearing care and support from your Hear.com provider. The Horizon app should further enhance your experience with easier access to useful setting adjustments.
Prescription hearing aids like Infinio Sphere Ultra are fit by hearing care providers so you should receive quality care. The MyPhonak app also opens the possibility for remote programming and virtual follow-up appointments.
Listen to direct output recordings from our acoustic test lab.
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.
Compatible accessories for each hearing aid
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.
This small desktop charger addresses basic needs when it comes to providing power to the hearing aids. 2 LEDs indicate the charging status (one per hearing aid). The Pure Charger can be plugged into the mains via USB to a power adapter.
This charger offers comfort and charging on the go. Its power bank allows for 3 full charges of a pair of hearing aids. A lid protects the hearing aids and prevents dust accumulating in the charger. 2 LEDs indicate the charging status (one per hearing aid) and one for the integrated power bank. All of the chargers are available with the power plug.
The Pure Dry&Clean Charger not only charges the hearing aids but also offers UVC cleaning and drying technology to keep the hearing aids in peak condition. The UVC cleaning starts automatically when the hearing aids are placed inside and is completed in just 15 minutes. 3 LEDs per hearing aid indicate their charging status and an additional LED indicates the cleaning status. The Pure Dry&Clean Charger also has a lid to ensure optimal cleaning and storage of the hearing aids.
Stationary Signia charger compatible with multiple hearing aids.
Charger with integrated battery
A wireless clip-on mic that streams audio to hearing aids from any Bluetooth device.
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.
Enables push-button remote control of hearing aid functions.
The Signia App provides a remote control, directional hearing control, telecare access, and access to connectivity and streaming settings.
The Phonak RemoteControl provides a discreet way to control your Phonak hearing aids.
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.
Discreet remote microphone that helps to boost your partners voice in one-to-one conversations in noise.
Streams television sound to hearing aids over a distance of up to 30 feet (10 meters).
Phonak Roger Select is a microphone specifically designed to help boost your hearing performance and keep you at the heart of the conversation.
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.
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.
The Verdict
If background noise is your biggest complaint — restaurants, parties, meetings — the Infinio Ultra's 4.4/5 lab score for speech in noise is a meaningful step above the Horizon Go IX's 2.7/5, and it costs roughly $350 less per pair to boot.
The tradeoff is size: Phonak's dual-chip design is noticeably bulkier than the Horizon Go IX's more conventional RIC body.
Which is right for you?
Go with the Horizon Go IX if a smaller, easier-to-conceal hearing aid matters more to you than squeezing out the last bit of clarity in loud rooms — its speech-in-quiet performance (4.0/5) is strong and close to Infinio Ultra's, so quiet-environment listening won't suffer much either way. Both deserve professional real-ear tuning at fitting; skipping that step leaves real performance on the table for either device.
Infinio Ultra's intensive noise-fighting mode runs about 10-11 hours per charge, so if you're in loud environments most of the day, confirm that's enough for your routine before committing.
Infinio Ultra's larger dual-chip body versus Horizon Go IX's more standard RIC shape is a physical difference worth feeling on your own ear, especially if you wear glasses or have smaller ears.
Both devices' lab scores jumped substantially after professional tuning (Horizon Go IX to 4.3/5, Infinio Ultra to 5.2/5), so insist your provider performs verified fitting rather than relying on default settings.
Yes. Infinio Ultra scored 4.4/5 on tuned lab testing for speech in noise, well above Horizon Go IX's 2.7/5, making it the stronger pick for loud, crowded environments.
The Phonak Infinio Ultra is the cheaper of the two, running about $350 less per pair than the hear.com Horizon Go IX.
Yes. Our review found Infinio Ultra's dual-chip design makes it noticeably larger than a typical receiver-in-canal hearing aid, while the Horizon Go IX keeps a more standard, discreet RIC shape.
Both offer hands-free calling and Android Bluetooth streaming, so neither device has an advantage there — the real differences are in noise performance, size, and price.
Yes, for both. Horizon Go IX's tuned score rose to 4.3/5 and Infinio Ultra's rose to 5.2/5 after professional adjustment, so getting a proper fitting matters regardless of which you choose.