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The everyday connections that matter
ReSound Sensia 4Hearing aids for familiar places and meaningful conversations.
A conversation at home. A walk with a friend. A favorite podcast. Sensia 4 combines everyday listening support with the convenience of compatible phone streaming.
Ultra Focus and Binaural Directionality III support your listening in a choice of rechargeable or replaceable-battery styles. Professional fitting helps make the technology work for your hearing.
Sensia 4 is worth considering for simpler routines, familiar places and one-to-one conversation. It keeps the same practical battery choices and compatible phone connectivity found across the Sensia RIE family.
Familiar everyday places. Binaural Directionality III supports listening by coordinating microphone behavior across a fitted pair.
A person speaking ahead. Ultra Focus provides forward listening support in rechargeable and replaceable-battery styles.
Daily convenience. Choose nightly charging or spare batteries, and stream audio from a compatible phone.
The places you spend time help guide the right hearing-aid choice.
Choose for your real listening needs. Sensia 4 offers fewer background-noise fitting options than Sensia 5. Frequent groups, restaurants or meetings may make another level a better match.
Helpful technology, explained simply
See how Sensia 4 fits into your day.
Sensia 4 combines AcoustIQ sound sensing, Binaural Directionality III and Ultra Focus. These features support everyday listening while leaving you simple controls in the Smart 3D app.
Binaural Directionality III
Support for the sounds around you.
Across a fitted pair, Binaural Directionality III coordinates microphone behavior to support speech listening and awareness of your surroundings.
Across all three styles
This directionality is included in rechargeable, size 312 and size 13 Sensia 4 models. Choose a style around your preferred power routine.
Ultra Focus
Focus on someone in front of you.
Face the person you want to hear during one-to-one conversation. Ultra Focus provides directional support for listening ahead.
A setting to discuss at your fitting
Your hearing professional can help you choose useful listening programs and understand how to use them. Ultra Focus is included across all Sensia 4 styles.
AcoustIQ sound sensing
Help as your surroundings change.
AcoustIQ detects the listening environment and engages appropriate sound-processing features. Smart 3D gives you everyday volume and listening controls when you want them.
Personalized for your hearing
Sensia 4 has 12 fitting channels and two Noise Tracker II settings. Your professional uses these options to tailor amplification and background-noise support.
Watch: How hearing aids make sense of sound · 3:36 · General ReSound technology explainer. Features and app controls shown vary by model.Read the key idea
Hearing aids analyze incoming sound to recognize listening environments such as speech, noise and music. This helps them choose how to process sound as your surroundings change. The video introduces ReSound's approach; the Sensia 4 features are described above.
Choose the routine that suits you
Recharge each night, or change batteries as you go.
Every Sensia 4 style includes Ultra Focus, Binaural Directionality III and compatible Bluetooth streaming. Choose rechargeable convenience, size 312 batteries, or size 13 batteries with a telecoil.
A simple nightly routine
Rechargeable microRIE
Place your hearing aids in the included Premium Charger at the end of the day. Rechargeable microRIE includes Ultra Focus and Binaural Directionality III, plus tap-to-answer calls on compatible phones.
24 hoursTypical use, including several hours of streaming
30 hoursMaximum use, without streaming
20 hoursWith streaming for 50% of the time
Manufacturer figures per full charge. Actual runtime varies with active features, accessories, hearing loss, battery age and surroundings.
A good fit if: you want an overnight charging routine instead of replacing small batteries.
Fresh batteries, no charging routine
RIE with a size 312 battery
Swap in a fresh zinc-air battery when needed and carry spares for convenience. You still get Ultra Focus, Binaural Directionality III and compatible Bluetooth streaming.
Power
Replaceable 312 battery
Speech focus
Ultra Focus
Telecoil
Not included in this style
A good fit if: you prefer carrying spare batteries to finding a place to recharge.
A replaceable battery, plus hearing-loop access
RIE with a size 13 battery and telecoil
Use the built-in telecoil with compatible hearing loops in venues such as theaters and places of worship. This style also includes Ultra Focus, Binaural Directionality III and compatible Bluetooth streaming.
Power
Replaceable 13 battery
Speech focus
Ultra Focus
Telecoil
Built in
A good fit if: you use hearing loops and want a replaceable-battery model.
Premium Charger included. The Micro Rechargeable + Premium Charger option includes your rechargeable microRIE hearing aids and a Premium Charger.
Your phone. Your sound.
Bring calls and favorite audio straight to your ears.
Stream from compatible iPhone and Android devices. Use the ReSound Smart 3D app for discreet volume adjustments, listening controls and supported remote fine-tuning.
Bluetooth LE Audio and Auracast add ways to connect, including available broadcasts in equipped public places.
Direct streaming with compatible iPhones.
Enjoy calls, music and other audio in your hearing aids. Hands-free calling is available with supported iPhone models and software. Check your exact model before choosing.
Check your exact Android model.
Compatible Android phones support direct streaming. Hands-free calls require a compatible Bluetooth LE Audio phone; they are not available on every Android device. Your phone model and software both matter.
More ways to hear the audio you want.
The optional ReSound TV-Streamer+ sends TV audio to your hearing aids. Auracast can connect you to compatible public broadcasts where available, using supported phone and app features. The TV-Streamer+ is sold separately.
A small hearing aid sits behind your ear, with a slim wire leading to the receiver in your ear canal. Choose a finish to blend with your hair, complement your glasses or simply suit your taste.
Sparkling SilverSandGoldBronzeWarm GreyGraphiteEspressoDeep Black
Rechargeable microRIE shown. Color appearance varies by screen; confirm availability for your chosen style with WHD.
Comfort starts with the right fit. A hearing professional can help choose a receiver and earpiece for your hearing needs, then fine-tune the sound as you get used to your hearing aids.
IP68-rated protection helps guard against dust and everyday moisture. Hearing aids are not waterproof; remove them for swimming or showering.
Compare the features that matter to you
Which Sensia level fits your life?
All four levels offer compact rechargeable hearing aids, compatible phone streaming and professional fine-tuning. Their listening features and fitting options differ. Compare those differences with the situations you want help hearing.
Rechargeable microRIE models only. Scroll down for more features and across to compare levels. Select a feature to see how it helps.
ReSound Sensia rechargeable microRIE technology levels: features and everyday benefits
What changes for you
PremiumSensia 9
AdvancedSensia 7
StandardSensia 5
Essential · This modelSensia 4
Automatic AI supportIntelligent All-Around
Coordinates sound sensing, directional microphones and AI noise reduction automatically. This combination is exclusive to Sensia 9 rechargeable microRIE.
✓ Included
—Not included
—Not included
—Not included
Focus on the conversationSpeech-in-noise support
Helps you attend to the person you are facing. Intelligent Focus combines directional microphones with AI noise reduction; Front Focus and Ultra Focus use different processing.
Intelligent Focus
Intelligent Focus
Front Focus
Ultra Focus
AI noise reductionIntelligent Noise Tracker
Uses a deep neural network to help make competing sound less intrusive. Levels 9 and 7 offer this feature; levels 5 and 4 use other noise-management features.
3 settings
On / off
—Not included
—Not included
Everyday background noiseNoise Tracker II
Gives your hearing professional options for reducing background noise and balancing listening comfort with access to speech.
5 settings
4 settings
3 settings
2 settings
Adjusting as places changeEnvironmental Optimizer
Adjusts sound processing for different listening environments. Sensia 9 includes Environmental Optimizer II; the other levels use version I.
Version II
Version I
Version I
Version I
Personalized sound fittingFine-tuning channels
Channels let your hearing professional adjust amplification across different parts of your hearing range. More channels offer more fitting flexibility, not a guaranteed improvement in hearing.
17 channels
14 channels
12 channels
12 channels
Wind-noise managementWind Guard
Helps reduce the noise made by wind reaching the hearing-aid microphones. The settings give your professional a choice of adjustment levels.
3 settings
3 settings
2 settings
2 settings
Softening sudden soundsImpulse Noise Reduction
Helps manage brief, sharp noises, such as clattering dishes, with adjustment options for your hearing professional.
3 settings
3 settings
2 settings
2 settings
Extra sound controls in the appSmart 3D Sound Enhancer
Adds the named Sound Enhancer controls in ReSound Smart 3D. All four levels still support the app's everyday controls.
✓ Included
—Not included
—Not included
—Not included
Every level also includes
Phone & broadcast audioBluetooth LE Audio + Auracast
Stream from compatible phones and connect to supported Auracast broadcasts where available. Phone, software and broadcast compatibility apply at every level.
✓ Included
✓ Included
✓ Included
✓ Included
Typical time per chargeRechargeable microRIE
24 hours is the manufacturer's typical runtime, including several hours of streaming. Maximum is 30 hours without streaming. Actual time varies with features, accessories, hearing loss, battery age and surroundings.
Protection for everyday dust and moisture. These hearing aids are not waterproof; remove them before showering or swimming.
IP68
IP68
IP68
IP68
Showing all 12 features.
What do “settings” mean? Your hearing professional uses these fitting options to personalize your sound. You don't need to adjust them throughout the day.
Every level also supports AcoustIQ sound sensing, ReSound Smart 3D controls and compatible remote adjustments. Phone and broadcast compatibility apply. The 312 and 13 battery styles have different features; compare those styles above.
Is Sensia 4 right for you? Sensia 4 can be a practical fit for simpler routines and familiar conversation. Sensia 5 adds more background-noise adjustment options; if your days are often noisy or socially demanding, ask which level best fits those situations.
Choose for the places you spend time.
Sensia 9 · A varied, social routineConsider the flagship when restaurants, groups and changing surroundings are a regular part of your day, and you want the fullest automatic support.
Sensia 7 · Focus in busier placesThe rechargeable style offers Intelligent Focus with AI noise reduction. It does not include Intelligent All-Around.
Sensia 5 · Everyday conversationConsider it for a mix of familiar places and routine conversation. It offers more background-noise adjustment options than level 4.
Sensia 4 · Mostly quieter settingsA starting point for simpler routines and one-to-one conversations. Discuss more demanding listening needs with your hearing professional.
Good technology is only part of the decision. WHD's hearing professionals review your hearing test, help you choose a suitable model and program your hearing aids for you.
Personalized programming
Your settings are based on your hearing needs and a recent in-person hearing test.
Lifetime support
Free ongoing adjustments and support, with compatible remote-care options.
Time to try them
A 60-day money-back guarantee, subject to return terms. Return shipping and other policy conditions apply.
3-year warranty included. Every Sensia 4 hearing aid purchased from WHD includes a 3-year warranty.
Tell us about your day. Share where hearing is hardest and which phone you use.
Get a clear recommendation. Confirm the model, color and included support.
Fine-tune with a professional. Work with WHD as you get used to your hearing aids.
Sensia 4 combines Ultra Focus, Binaural Directionality III and AcoustIQ sound sensing across all three RIE styles. It also offers compatible Bluetooth streaming, Smart 3D app controls and 12 fitting channels for professional personalization.
How long does the Sensia 4 rechargeable battery last?
ReSound lists 24 hours of typical use, up to 30 hours without streaming, and 20 hours when streaming for 50% of the time. These figures apply to rechargeable microRIE only. Actual runtime depends on active features, accessories, hearing loss, battery age and surroundings.
Will Sensia 4 work with my iPhone or Android phone?
Sensia supports direct streaming with compatible iPhone and Android devices. Hands-free calling depends on your phone and software; Android hands-free calls require compatible Bluetooth LE Audio. Check your exact device on ReSound’s compatibility page before ordering.
Do all Sensia 4 battery styles have the same features?
Ultra Focus and Binaural Directionality III are included in every Sensia 4 RIE style. Rechargeable microRIE adds charging convenience and TapControl for answering compatible calls. The size 13 battery style has a telecoil; the size 312 style does not.
Does Sensia 4 include Intelligent Focus or AI noise reduction?
No. Sensia 4 uses Ultra Focus; it does not include Intelligent Focus or Intelligent Noise Tracker DNN noise reduction. It still includes AcoustIQ sound sensing to detect listening environments and engage appropriate features. Intelligent Focus with AI noise reduction is offered in Sensia 7 and 9 rechargeable microRIE.
When should I consider Sensia 5 instead?
Sensia 5 adds All Access Directionality and Front Focus, with three Noise Tracker II settings compared with two on Sensia 4. Both have 12 fitting channels. If background noise is a regular concern, ask whether those extra options are useful for your hearing and routine. Sensia 5 costs $100 more per side.
Can I buy Sensia 4 online and still get professional help?
WHD offers professional programming based on a recent in-person hearing test, plus free lifetime support and adjustments. A hearing professional can help determine whether Sensia 4 is appropriate for your hearing and arrange supported remote fine-tuning.
How much does ReSound Sensia 4 cost?
ReSound Sensia 4 costs $1,199 per side or $2,398 for a pair. These prices apply across all Sensia 4 styles and colors.
Which charger is included with rechargeable Sensia 4?
The Micro Rechargeable + Premium Charger option includes a Premium Charger for your rechargeable Sensia 4 microRIE hearing aids.
What warranty comes with ReSound Sensia 4?
Every ReSound Sensia 4 hearing aid purchased from WHD includes a 3-year warranty.
Product details & sources
Specifications checked against current ReSound US materials on October 15, 2026. Features depend on the chosen style and technology level.
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