What makes it special

Many things worth knowing about this hearing aid

Specs only tell you so much. Here's what's actually worth knowing about the Phonak Audéo Infinio Ultra Sphere I70 — what each feature does, and why it matters day to day.

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ERA + DEEPSONIC (dual-chip) Chipset

The Audéo Sphere Infinio Ultra uses unique dual chip technology: the ERA chip plus the DEEPSONIC, a dedicated real-time AI sound processing chip Sonova International. This powers your Infinio Ultra Sphere I90 and I70.

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Bluetooth Connectivity

Connect straight to your phone, TV, and other devices — calls, music, and shows stream right into your ears. No extra remotes or accessories to carry around.

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Auracast Ready

Stream airport announcements, gym TVs, theater audio directly to your ears. The future is here.

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56 hrs Battery Life

Two full days per charge. Weekend trips without the charger? Finally possible.

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1m Water Resistant

Rain, sweat, splashes. Golf in the rain? Go for it.

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Advanced Technology level

Higher tiers do more of the work for you — automatically taming background noise and adjusting to busy rooms so speech stays clear. Lower tiers cover the basics and lean more on manual adjustments.

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Rechargeable Battery Type

Rechargeable, just like your phone. Set them in the case overnight and wake up to a full day of power — no tiny batteries to swap, fumble with, or keep buying.

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HSA / FSA Eligible

Hearing aids count as a qualified medical expense, so you can pay with pre-tax HSA or FSA dollars. Use your HSA/FSA card right at checkout, or file the receipt with your plan for reimbursement.

⚡

Recharging Case

The case carries its own battery, so it tops off your hearing aids two to three times before it ever needs an outlet. Just drop them in, close the lid, and charging starts on its own.

See if its right for you

Take our free 5-minute hearing test

Your hearing expert will use your results to confirm the Phonak Audéo Infinio Ultra Sphere I70 is the right match or recommend a better fit. Zero pressure, zero cost.

Take Free Hearing Test 📞 (844) 914-3331

How ERA + DEEPSONIC (dual-chip) Works

53x More Processing Power

The DEEPSONIC chip exists for one job: dragging voices out of noise. It runs a deep neural network at 53 times the power of any previous Phonak chipset.
The Workhorse Chip

ERA handles Bluetooth, AutoSense, streaming, and everything non-AI. Splitting tasks across two chips means DEEPSONIC focuses on noise while ERA handles everything else.
Spheric Speech Clarity 2.0

Sphere's signature move, running on DEEPSONIC. Lifts voices out of chaos, sharpens clarity, and reassembles sound your brain trusts. Up to 3x more likely to follow the full conversation.
AutoSense OS 7.0

The automatic operating system reads your environment 700 times per second. Calm room, loud bar, highway drive, concert. It picks the program. You just listen.

Specification Specs ← pull left for more columns	Phonak Audéo Infinio Ultra Sphere I70	Starkey Omega AI 20	ReSound Vivia 7 microRIE	Best Selling Phonak Audéo Infinio Ultra Sphere I90
Chipset	ERA + DEEPSONIC (dual-chip)	G3 Gen AI Neuro Processor	360 Chip (single)	ERA + DEEPSONIC (dual-chip)
Spheric Speech Clarity	—	—	—	2.0
AutoSense OS AI	7.0	—	—	7.0
Fitting Formula (APD)	—	—	—	3.0
WindBlock	—	—	—	1.0
Performance Tier	Advanced	Advanced	Advanced	Premium
Battery Life (hours)	56 hrs	51 hrs	30 hrs	56 hrs
Water Resistant (meters)	1m	1m	1m	1m
Generation	Prior Gen	Current Gen	Prior Gen	Prior Gen
Hearing Loss Range	Mild Moderate Profound Severe	Mild Moderate Severe	Mild Moderate Profound Severe	Mild Moderate Severe Profound
Suited For Scenarios	All-Day Mixed Environments Crowds and Live Events One-on-One Conversations Outdoors Phone and Video Calls Noisy Restaurants Workouts and Active Days	All-Day Mixed Environments Outdoors Crowds and Live Events Phone and Video Calls Workouts and Active Days One-on-One Conversations	All-Day Mixed Environments Outdoors Crowds and Live Events Discreet Low-Profile Wear One-on-One Conversations Phone and Video Calls Workouts and Active Days	All-Day Mixed Environments Crowds and Live Events Noisy Restaurants One-on-One Conversations Outdoors Phone and Video Calls Workouts and Active Days
Fine-Tuning Channels	16	20	14	20

Decided on the Phonak Audéo Infinio Ultra Sphere I70?

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Choose Options

Take the Hearing Test

Free 5-minute online hearing test. Or upload an audiogram you already have.
Talk to an Expert

Our product specialists review your results and help you find the best devices for you.
We Ship Pre-Programmed

Your Phonak Audéo Infinio Ultra Sphere I70's arrive in 3–5 days, fit to your exact prescription.
Lifetime Support

Unlimited remote adjustments for life. We're here for the long haul.

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Have questions about the process?

Talk to a real hearing specialist — no sales pitch.

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Built for the moments that matter most

Real situations the Phonak Audéo Infinio Ultra Sphere I70 is designed to handle effortlessly.

All-Day, Mixed Environments

Kitchen to car to coffee shop, your settings keep up automatically. No fiddling, no menus, just the right sound everywhere.
Crowds and Live Events

Concerts, weddings, packed rooms, busy terminals. Big, loud spaces get sorted in real time, so the sound stays clear and balanced.
One-on-One Conversations

Quiet moments deserve full attention. Clear focus on the person across from you, with soft voices brought forward automatically.
Outdoors

Walks, patios, the back nine. Wind and open air meet their match, so the outdoors stays calm, not gusty.
Phone and Video Calls

Take the call without touching your phone. Hands-free Bluetooth streams every voice straight to both ears, crisp and clear.
Noisy Restaurants

The clatter fades, the voice across the table comes forward. Order, laugh, and follow the conversation as the voice across the table comes forward.
Workouts and Active Days

Sweat, motion, and weather are no problem. It stays put and keeps working while you do.

Physical

Chipset ERA + DEEPSONIC (dual-chip)

Style Receiver-in-Canal (RIC)

Hearing aid material Plastic, Silicone

Tap Control ✓

Power & Durability

Battery Life (hours) 56 hrs

Battery Life (Streaming) 12-24

Battery Range (Normal Use) 36-56hrs

Water & Dust Resistance ✓

Water Resistant (meters) 1m

Charging Case Capacity 15-30 mins

Quick Charge ✓

Ingress protection (IP) rating IP68

Features

Own Voice Processing ✓

Hearing aid features Digital, Rechargeable battery, Programmable, Waterproof, Noise Reduction, Wind noise reduction, Water resistant / IP rated, Feedback suppression, Directional microphone

Fine-Tuning Channels 16

Directional Microphones Yes (Automatic + Manual)

Loss & Damage 3 years $495

Speech Enhancer ✓

Tinnitus Support ✓

Telecoil –

Health Tracking –

Performance

Wind Noise Reduction ✓

Speech-in-Noise Enhancement ✓

Hearing Loss Range Mild, Moderate, Profound, Severe

Feedback / Whistle Cancellation ✓

Performance Tier Advanced

Receiver Options S (standard), M (medium), P (power), UP (ultra power)

Directionality 270°

Fitting Range (dB) Mild to Profound

General

Technology level Advanced

Suited For Scenarios All-Day, Mixed Environments, Crowds and Live Events, One-on-One Conversations, Outdoors, Phone and Video Calls, Noisy Restaurants, Workouts and Active Days

Hearing Test Required ✓

Generation Prior Gen

Release Date October 2025

Connectivity

Audio Streaming Yes (Universal)

Hands-Free Calls ✓

Simultaneous Connections 2

User Adjustable via Mobile App ✓

Auracast Ready ✓

Android Compatible ✓

iOS Compatible ✓

Connectivity Technology Bluetooth

Frequently Asked Questions

What does the DEEPSONIC chip actually do?

No. Splitting the workload actually improves efficiency. Each chip runs only its designated tasks instead of one chip multitasking everything at once.

What's the real-world battery life?

The Phonak Audéo Infinio Ultra Sphere I70 delivers 56hours, assuming 3 hours of daily Bluetooth streaming. This typically means 2+ full days of use before recharging.

What is the 60 Day Risk-free Trial?

That's why the trial is 60 days, not a long weekend. From the busy restaurant to the family dinner table to hands-free calls on the go, you will know these work for your life and not just a quiet demo room.

Every purchase includes professional fitting by a licensed hearing care provider, unlimited adjustments throughout your trial, and devices that arrive calibrated for your own hearing. The trial isn't a safety net bolted onto the product. It's the whole philosophy.

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Rated 4.0 out of 5 stars

Based on 2 reviews

100%would recommend this product

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JS
James S.
Verified Buyer
I recommend this product
Rated 4 out of 5 stars
22 seconds ago
Great service and professional atmosphere
I have only had them two weeks, one week after the hearing test and adjustment, and I am very pleased with the program I am on. It is too early to judge the other surrounding circumstances but so far I find them to be not as clear as I had hoped. Overall I am pleased.
Was this helpful?
DA
Dale A.
Verified Buyer
I recommend this product
Rated 4 out of 5 stars
1 month ago
Phonak i70
They are OK but I still do not have them working perfect.
Was this helpful?
IH
Injoy Hearing Aids
1 month ago
Thank you for sharing your feedback about the Phonak Audéo Infinio Ultra Sphere I70, Dale. We appreciate you taking the time to review your experience with them.

We understand that getting your hearing aids working perfectly is important, and we'd like to help make sure you're getting the most out of your devices. If there are specific issues or adjustments that aren't quite right yet, our team would be happy to work with you to address those concerns and get you to where you need to be with your hearing aids.

We're glad you gave us the opportunity to help, and we're here if you need any further support with your Phonak Audéo Infinio Ultra Sphere I70.

Ready to Experience ERA + DEEPSONIC (dual-chip)

Try Phonak Audéo Infinio Ultra Sphere I70 risk-free with our 60-day money back guarantee. Free shipping, free returns, free audiologist support.

Add to Cart Call (844) 914-3331

What you Get

Everything you need to hear better, in one box

Total Value Included: $0

🦻 Phonak Audéo Infinio Ultra Sphere I70
Premium hearing aid in your selected color — pre-programmed to your prescription
$1500+ value
🔌 Phonak Charger
The reliable nightstand workhorse that powers your hearing aids while you sleep, no frills and no surprises.
$250 value
🛡️ 4-Year Manufacturer Warranty
Full coverage on repairs and defects for four years. Because stuff happens.
$800 value
💔 3-Year Loss & Damage Coverage
Replacement coverage if your aids take an unscheduled trip down the garbage disposal.
$4000 value
👩‍⚕️ Remote Licensed Hearing Provider Fitting
One-on-one session with a licensed hearing provider to fine-tune your settings and learn how to get the most out of your devices.
$250 value
🔄 Lifetime Remote Support
Unlimited Remote Adjustments. Forever. No session caps, no expiration, no "your year is up." We're in this until you're not.
$1000 value
🔌USB-C and USB-C Power Adapter
A matching cord-and-wall-plug set that turns any outlet into a charging station for your hearing aid case, no junk-drawer scavenger hunt required.
$25 value
🧽 EasyGuard Wax Protection Domes
Phonak's new domes that seal and protect the receiver from earwax and moisture without changing how the hearing aid sounds.
$25 value

Phonak Audéo Infinio Ultra Sphere I70