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Oticon Own SI 4 Hearing Aids

New

Price Each: £1295 | Price Pair:  £2495

In the Ear
Fitting Styles: IIC, CIC
Warranty:  5 years

Technology rating

Our price

£1295 each

£2495 per pair

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0800 567 7721

Oticon Own SI 4 Hearing Aids Overview

The Oticon Own SI 4 is a mid-range custom in-the-ear hearing aid that offers reliable performance, a discreet design, and access to Oticon’s powerful brain-friendly sound processing—all at a more accessible price point.

Built on the Sirius™ platform, this model balances innovation and practicality, delivering clear speech understanding in everyday environments without overwhelming complexity.

Whether you're chatting at home, shopping on the high street, or enjoying a quiet night in, Oticon Own SI 4 helps you stay connected and confident, with a look that stays virtually out of sight.

Smart Hearing, Subtle Design

Guided by Oticon’s BrainHearing™ philosophy, the Own SI 4 supports the brain’s natural way of understanding sound, making communication feel more natural and less tiring.

While it doesn’t offer all the advanced features of higher-end models, it still delivers consistent, high-quality performance that suits a wide range of users, especially those who prefer simplicity and discretion.

Key Features of Oticon Own SI 4

Sirius™ Platform with DNN 2.0

Powered by the same platform as Oticon’s flagship models, the SI 4 includes access to the Deep Neural Network 2.0, trained on millions of real-life sound scenarios. While performance is scaled down compared to premium models, it still helps filter speech from background noise for more comfortable listening in everyday settings.

Sudden Sound Stabiliser

Protects your ears from sudden loud sounds, helping maintain comfort throughout your day. This feature ensures that unexpected noises are softened without losing important speech cues.

BrainHearing™ Support

While slightly less advanced than in the SI 1, BrainHearing™ in the SI 4 still promotes easier listening by supporting the brain’s natural sound organisation and focus.

Discreet Custom Styles

Available in ultra-compact Invisible-In-Canal (IIC) and Completely-In-Canal (CIC) designs, the Own SI 4 is crafted to match the shape of your ear for a snug, invisible fit:

• IIC – The smallest option for ultimate discretion.
• CIC – Slightly larger but still highly discreet.

IP68-Rated Durability

Just like its higher-end siblings, the SI 4 is built to withstand moisture and dust, ensuring long-lasting use in your everyday life.

Battery Life & Maintenance

The Oticon Own SI 4 uses traditional size 10 or 312 disposable batteries, depending on your chosen style. These batteries are easy to replace and provide several days of use, ideal for those who want a low-maintenance hearing solution.

Available in colours beige, light brown, medium brown, dark brown, and black.

Limitations

Due to its compact form and tier level, the Own SI 4 does not include Bluetooth streaming, rechargeability, or smartphone app control. These features are reserved for Oticon’s higher-level models or larger styles. However, if your priority is clear sound in a small and discreet device, the SI 4 delivers where it matters most.

The difference between Oticon own SI 1 and Oticon own SI 4

The Oticon Own SI 1 and SI 4 are both built on the advanced Sirius™ platform and offer custom-moulded, discreet in-the-ear designs, but they differ significantly in performance and feature depth.

The SI 1 is Oticon’s top-tier model, delivering premium features like stronger neural noise suppression, a wider sound bandwidth (up to 10 kHz), Clear Dynamics, and full Better-Ear Priority for enhanced speech clarity and spatial awareness—even in complex listening environments.

In contrast, the SI 4 is a mid-range option that provides reliable everyday sound processing with access to core BrainHearing™ support and the DNN 2.0 engine, but with fewer configuration options and more limited performance in noisy or fast-changing sound environments.

For those who prioritise maximum hearing performance and advanced sound precision in an invisible style, the SI 1 stands out, while the SI 4 is ideal for users who want dependable, discreet hearing support without the added complexity or cost.

Why Choose Oticon Own SI 4?

• Mid-range model with strong everyday performance
• Built on the advanced Sirius™ platform
• Custom-fit for discreet, comfortable wear
• AI-powered sound processing with DNN 2.0
• Durable, sweat- and moisture-resistant design
• Great for those who want high-quality hearing support without advanced extras

Who It’s Best For

The Oticon Own SI 4 is ideal if you’re looking for:

• A discreet, custom in-ear hearing aid
• Consistent sound clarity in everyday environments
• Easy battery changes with disposable batteries
• Essential noise handling and speech support
• A balance between affordability and performance

Other Oticon Own SI hearing aid technology levels:

►Click here to view Oticon Own SI 1 hearing aids 

►Click here to view Oticon Own SI 2 hearing aids 

►Click here to view Oticon Own SI 3 hearing aids 

Need more support with the Oticon Own SI 4 hearing aids?

Not sure if this is the right hearing aid for you?  We’re here to help – with honest advice, personalised recommendations, and no pressure.  Plus, we offer free home visits with no extra cost, so you can get expert support in the comfort of your own home.

For friendly, knowledgeable advice, just call us free on 0800 567 7721.  Alternatively, you can fill in the form at the bottom of the page to request a callback with one of our experts or click on one of the buttons below to book a free appointment or home visit with a local audiologist today.  Let’s find the right hearing solution – together.

Book a Free Appointment

Author: Naomi Livermore

FAQs

• Watch the Oticon Own SI hearing aid video below

• What makes the Oticon Own SI different from other hearing aids?

  The Oticon Own SI is part of the world's first custom hearing aid family featuring an on-board Deep Neural Network, combining discreet sizing with advanced audiology.
  
  These custom-made devices use Deep Neural Network 2.0 technology to improve speech understanding whilst preserving awareness of your surrounding environment. The IIC model is truly invisible in 9 out of 10 ears, making it Oticon's smallest hearing aid ever.

• How discreet are Oticon Own SI hearing aids?

  Oticon Own SI hearing aids are designed with discretion in mind. Available in two small sizes—IIC (invisible-in-the-canal) and CIC (completely-in-the-canal)—they're offered in five colours to match your skin tone.

• What technology is included in the Oticon Own SI?

  The devices include Soft Speech Booster technology that enhances soft voices in quiet places, and their Deep Neural Network 2.0 recognises different types of noise, reacting differently depending on the nature of the sound. This AI-powered approach helps reduce listening effort whilst maintaining natural sound quality.

• Who are Oticon Own SI hearing aids suitable for?

  Oticon Own SI hearing aids can accommodate a wide range of hearing losses, including people with severe hearing loss, with receivers available up to 90 dB. They're particularly well-suited for individuals who want a discreet, custom-fitted solution without compromising on advanced technology.
  
  Your hearing care professional will take an impression or scan of your ear to create a device that's uniquely tailored to your ear canal's shape and your specific hearing requirements.