Widex Evoke RIC 312 (FS Series): A Complete Product Description

The Widex Evoke RIC 312 FS series — comprising the FS 440, FS 330, FS 220 and FS 110 — is a receiver‑in‑canal hearing aid from the Evoke™ family, widely recognised as the world’s first hearing aid to integrate live machine learning. The Evoke platform marked a paradigm shift in hearing care: instead of relying solely on audiologist‑configured presets, Evoke learns directly from the wearer’s preferences in real‑world environments, delivering a continuously improving, personalised listening experience.

The “RIC” form factor places the main body discreetly behind the ear, connected by an ultra‑thin wire to a receiver that sits directly in the ear canal. This open‑fit design minimises the “plugged‑up” sensation (occlusion effect) while allowing natural low‑frequency sounds to pass through, making it exceptionally comfortable for first‑time users. The “312” designation indicates that the device is powered by a disposable size 312 zinc‑air battery, offering extended runtime without the need for daily charging. Designed for individuals with mild to moderately severe hearing loss, the Evoke RIC 312 offers a fitting range of 0‑115 dB HL across all four technology levels. The “FS” (Fusion) series represents the refined second‑generation Evoke platform, with improved sound classification, faster processing and enhanced machine‑learning algorithms.

The Core Smart Technology: SoundSense Machine Learning

What truly sets Evoke apart is its SoundSense Technology, a machine‑learning platform that lives inside both the hearing aid and the companion smartphone app. Every time you use Evoke, it evolves — because it learns from the adjustments you make in different sound environments and applies that knowledge to similar situations in the future. This is achieved through two complementary features:

• SoundSense Learn – When you encounter a challenging listening situation, the Evoke app presents you with two alternative sound profiles (A vs B). Simply listen and select your preferred option. Repeat this process as many times as you wish, and the hearing aid gradually builds a personalised sound model tailored to your unique hearing preferences. The system uses anonymised data from users worldwide to continuously improve its recommendations.

• SoundSense Adapt – The hearing aid remembers every adjustment you have ever made and intelligently applies those preferences to new environments — even if you have never visited that particular location before. Your Evoke never forgets, and it constantly applies what it has learned to deliver better sound automatically, without any manual intervention.

Underpinning these features is the powerful Fluid Sound Controller, a dual‑core processing system that continuously analyses incoming sound and automatically adjusts multiple parameters — including variable‑speed compression — to preserve natural sound quality while reacting quickly to dynamic acoustic environments. The Fluid Sound Analyzer, with twice as much training as previous classifiers, maps out the environment more accurately than ever to select the correct sound class from up to 11 categories (quiet, speech in noise, party, traffic, city, music, etc.).

Technology Levels: 440, 330, 220 and 110

The Evoke FS series is offered in four distinct performance levels. The number indicates the sophistication of the feature set, with 440 being the most advanced and 110 the essential entry level.

Widex Evoke FS 440 – Flagship Performance

The FS 440 is the most technologically advanced option in the Evoke family. It features 15 processing channels for exceptionally precise sound shaping and 11 distinct sound classes that automatically identify your listening environment – from quiet conversation to a crowded restaurant or music concert – then apply the optimal settings for each. The 440 includes HD Locator for channel‑specific directionality, dramatically improving speech intelligibility in challenging noise. Advanced TruSound Softener smooths out sudden impact sounds like a door slam or clanking dishes. Digital Pinna helps you locate and focus naturally on voices in front or behind by mimicking the normal effect of your outer ear. Speech Enhancer Pro reduces noise and enhances speech in real time. The FS 440 offers up to five listening programs and the most refined version of SoundSense Learn.

Widex Evoke FS 330 – Advanced Everyday Intelligence

The FS 330 offers 12 processing channels and a high degree of adaptability for most daily situations – from family gatherings to outdoor conversations. It retains HD Locator, Advanced TruSound Softener and Digital Pinna, but with slightly fewer fine‑tuning options than the 440. Users benefit from up to four listening programs and a highly effective version of SoundSense Learn, making it an excellent choice for active lifestyles.

Widex Evoke FS 220 – Solid Mid‑Range Choice

The FS 220 is a reliable option for users with quieter lifestyles or those who want core Evoke intelligence at a more accessible price point. It offers 10 processing channels, up to three listening programs, standard Speech Enhancer, and basic versions of wind and impact noise management. It does not include HD Locator or Digital Pinna, but still features the full SoundSense Learn & Adapt capabilities and the Fluid Sound Controller.

Widex Evoke FS 110 – Essential Smart Hearing

The FS 110 provides core Evoke sound quality with streamlined features – ideal for first‑time users or those who primarily need amplification in quiet to moderately quiet environments. It comes with 6 processing channels and up to three listening programs. While it lacks the advanced directionality and sophisticated noise management of higher levels, it still includes SoundSense Learn & Adapt, TrueInput technology (113 dB SPL input range), dynamic feedback cancellation, and variable‑speed compression. Users can still control the hearing aid via the Evoke app and benefit from the machine‑learning personalisation that makes Evoke unique.

Features Common to All Four Levels

Across all technology levels, the Widex Evoke RIC 312 shares a robust core of essential technologies:

• SoundSense Learn & Adapt – Machine learning personalisation is available on all four levels, making even the FS 110 a “smart” hearing aid that improves over time.

• TrueInput Technology – An expanded input range of 113 dB SPL, handling very loud sounds without distortion while preserving soft sounds.

• Dynamic Feedback Controller – Fast, artefact‑free cancellation of whistling feedback, engineered to adapt and preserve sound quality.

• Variable‑speed compression – Automatically adjusts from fast to slow for consistent speech understanding and listening comfort at all input levels.

• ZEN Tinnitus Management – A built‑in tinnitus relief tool using soothing fractal tones, available on all levels.

• Telecoil – Connect easily to induction loop systems in theatres, places of worship and public venues.

• Programmable push button – Customisable for short or long presses to change programs, adjust volume or (with compatible accessories) answer calls.

• IP68 dust/water protection – The device is resistant to dust and can withstand immersion in water, making it suitable for active users.

• Widex Evoke App – Full control over volume, programs and personalisation, plus access to SoundSense Learn. The app also provides a hearing diary and usage statistics.

• DEX accessory compatibility – Works with TV Play 2 (direct TV streaming), RC‑DEX (simple remote control) and COM‑DEX (hands‑free streaming from any Bluetooth phone).

• Disposable size 312 battery – Provides up to 165 hours of use (approximately 10‑14 days of typical wear), with audible low‑battery warnings and no charging required.

What Is Not Included (Honest Disclosure)

The Widex Evoke RIC 312 is a disposable‑battery device – there is no rechargeable option on this model. It also does not support direct audio streaming from smartphones; unlike the “Direct” versions, the FS series lacks built‑in 2.4 GHz Bluetooth for streaming. For streaming, you would need a COM‑DEX accessory. There is no hands‑free calling (you must speak into your phone). It also lacks the ultra‑fast PureSound™ processing (<0.5 ms) found in newer Widex Moment models, as well as the AI Sound Assistant and Digital Pinna features available in higher‑end families. However, for users who prioritise machine learning personalisation and natural sound without the need for smartphone streaming, the Evoke FS series remains an outstanding choice.

Summary

The Widex Evoke RIC 312 FS series represents a genuine milestone in hearing aid technology – the first device to bring live machine learning directly to the wearer. Across its four technology levels (440, 330, 220 and 110), users can choose the degree of intelligent automation that suits their lifestyle, from the flagship FS 440 with 15 channels and 11 sound classes to the essential FS 110 that still offers the core benefits of SoundSense Learn. With a size 312 battery delivering up to 165 hours of use, IP68 protection, a discreet RIC form factor and the ability to learn and adapt from your daily preferences, the Evoke RIC 312 remains a compelling choice for users seeking natural sound that evolves with them.