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Phonak Slim L70 Hearing Aids / Phonak Slim L70-R Hearing Aids

Tech Rating:
Our Price
£1645 per aid
£2895 per pair

Behind the Ear
Fitting Styles:

5 Year Warranty Included. Charger included in the price.

Model:Slim L70
Style:Behind the Ear
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What's included in our hearing aid prices?

Full Hearing Test & Examination by a Registered Audiologist
Fitting and Programming of Hearing Aid(s)
All Aftercare and Fine Tuning for Life
Full Manufacturer's Warranty
60 Day Full Money Back Guarantee

Details & Features

Phonak Slim L70 Hearing Aids Overview 


Introducing the Phonak Slim L70 hearing aids

Launching in May 2023, Phonak Slim hearing aids incorporate a new modern sleek look with the advanced Lumity technology platform.  The Slim L70 hearing aids are at the advanced technology level, which means you will benefit from some of the features available in this hearing aid range.  To view the higher technology, visit our Phonak Slim L90 product page here

The Phonak Slim L70 hearing aids have an ergonomic casing that is contoured to fit naturally behind your ear and sit comfortably to your head shape.  Ideal if you wear glasses or a mask for a comfortable fit all day long.

The design follows the fashion hearing aid market trend first seen with Signia's 2018 Styletto hearing aid launch.  Phonak Slim L70 hearing aids are designed to be seen and show consumers not just what hearing aids can do, but also break the mould on how hearing aids can look.


What are the main features of the Phonak Slim L70 hearing aids and how can they make a difference?


SmartSpeech Technology

This comprises features that Phonak's operating system, AutoSense OS 5.0, automatically adapts depending on your environment and hearing needs by cutting through background noise in a few ways. 

Each feature is created to support better speech understanding or reduce listening effort in various listening environments - even the most challenging ones that you find yourself in.

With Phonak Slim L70 hearing aids, you can also enhance your speech understanding with Roger On, a microphone that provides stereo sound and understands and recognises where sounds are coming from. 

How does this help your hearing?  This makes your conversations clear, especially in environments where you find the background noise changes often.


StereoZoom 2.0

This feature adapts the strength of focus as the background noise level increases.  This ultimately gives you a 2.5 dB better signal-to-noise ratio.  For the full feature set of the Lumity platform, read our Phonak Audeo Lumity L90 product page here or read our  Phonak Slim hearing aid review here


Phonak Slim L70 hearing aid's colours, Bluetooth technology, charging capabilities and technology levels

The Phonak Slim L70 hearing aids come in four different colour options, including the same audiology technology as the Phonak Lumity as well as using lithium-ion rechargeable batteries.  These batteries are said to last all day with only three hours of charge in Phonak's portable charging case.  

Phonak Slim hearing aids come in only the top two performance levels, which are this one (the advanced L70) and the premium L90 performance.  There is also no telecoil feature in this hearing aid range.

Like the Lumity hearing aid range, Phonak Slim L70 hearing aids include advanced Bluetooth so you can pair up to eight devices as well as two to be active at the same time.  Making the switch between different Bluetooth devices easier and more convenient.


Health data tracking features with Phonak Slim L70 hearing aids

When using the myPhonak app you can access health data tracking features with Phonak Slim L70 hearing aids which support your overall well-being and hearing health, such as steps, activity levels, goals set by yourself and wearing time in your most common listening environments.


Other features of the Phonak Slim L70 hearing aids

  • 20 Fine tunning channels
  • Speech in loud noise
  • Music
  • Speech in 360°
  • StereoZoom 2.0
  • Dynamic noise cancellation
  • Tap Control
  • SoundRelax


What features do you lose when you compare Phonak Slim L70 hearing aids with the L90?

With Phonak Slim L70 hearing aids you will miss out on some of the features that tackle background noise whilst focusing on speech.  Such as Speech in Car and Speech in Loud Noise. 

The Slim L70 also doesn't include new features focused on background noise, such as StereoZoom 2.0 and SpeechSensor.  Other features that aren't included are Comfort in Echo and EchoBlock.


Our thoughts on Phonak Slim L70 hearing aids

The Phonak Slim hearing aids combine modern design, appealing to those who are looking for an aesthetically pleasing hearing solution, with innovative proven technology and connectivity that loyal Phonak customers love. 

Therefore, Slim offers a personable and enhanced sound experience as well as boosting the wearer's confidence and catering to a wide range of candidates' specifications, lifestyles and hearing needs.

Overall, we like how this hearing aid has the potential to change perceptions and attitudes towards both hearing aids and hearing loss.  However, even though Slim is a great hearing solution to consider, we would always recommend putting your unique hearing needs and which device would be the best fit at the forefront of your hearing aid search.

Talk to an audiologist about the pros, cons and features versus benefits of the Phonak Slim hearing aids and how they can help you and your hearing loss.


Other Phonak Slim hearing aid performance levels:

►Phonak Slim L90 hearing aids


Need more support with Phonak Slim L70 hearing aids?

Call us free on 0800 567 7621 to speak with one of our audiologists about the Phonak Slim hearing aid range and what it could do for you and your hearing. 

►Click here to go to the top of the page



**Please note, there will be an additional surcharge of £125 if we are pairing a single hearing aid with an existing aid bought from another company where we are taking over the aftercare responsibilities and looking after both hearing aids**

Written by Paul Harrison, Audiology Expert & Founder

Managing Director & founder of Hearing Aid UK, with over 20 years of audiology experience and a member of the British Society of Hearing Aid Audiologists Council (BSHAA) between 2015-2020.

Explore Phonak Slim L70 hearing aid prices, video and brochure below

Behind the Ear
Fitting Styles:

5 Year Warranty Included. Charger included in the price.

Phonak Slim Full Range

Behind the Ear
Fitting Styles:

5 Year Warranty Included. Charger included in the price.

Phonak Slim Full Range

Behind the Ear
Fitting Styles:

5 Year Warranty Included. Charger included in the price.

Phonak Slim Full Range

Behind the Ear
Fitting Styles:

5 Year Warranty Included. Charger included in the price.

Phonak Slim Full Range

Watch the Phonak Slim L70 Hearing Aid Video Below

Have any questions?

Here, at Hearing Aid UK, we offer a wide range of hearing aids available on the market - keeping up to date with the best and latest hearing aid technology.

We can support your hearing healthcare in clinic or in the comfort of your own home and with nationwide coverage, we will have an audiologist near you.

Whatever your hearing loss level, budget, or style our audiologists can help you find the perfect hearing solution for you.

Call us free for support and advice on 0800 567 7621

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Meet David

Meet David, Audiology Expert at Hearing Aid UK

David graduated as an audiologist in 2003. He worked for many years dispensing hearing aids for the high street chains and later as an independent audiologist before joining the management team at Hearing Aid UK.

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What's included in our hearing aid prices?

Full Hearing Test & Examination by a Registered Audiologist
Fitting and Programming of Hearing Aid(s)
All Aftercare and Fine Tuning for Life
Full Manufacturer's Warranty
60 Day Full Money Back Guarantee
Is this the best model for me?

If you are looking at this page then it is likely that an audiologist has suggested that you purchase this particular hearing aid, so is this the best model for you?

In general, any audiologist will always be recommending to you the model that best suits your needs. Here is a useful check list to make sure that is the case.

  • Audiologist level of knowledge. The audiologist you have seen will hopefully have a wide knowledge of all available hearing aids, however some will only be familiar with a small number of brands and therefore may not really be in a position to know which model is the best for you. It is OK to challenge their recommendation and ask them to justify why this particular brand is the one for you.
  • Do research. Read about the hearing aid that was recommended. Does it seem like it will suit your lifestyle? Does it have more or less features than you need? 
  • Be aware of sales targets. Many high street retailers have specific tie-ins to a particular manufacturer/brand. The hearing aid they have suggested may still be the correct one for you, but do your research so that you know why they might have recommended it.

If in doubt, feel free to give us a call. That's what we're here for.

Do I need one hearing aid or two?

If you have a significant hearing loss in both ears, you should be wearing two hearing aids. Here are the audiological reasons why:

Localisation. The brain decodes information from both ears and compares and contrasts them. By analysing the miniscule time delays as well as the difference in loudness of each sound reaching the ears, the person is able to accurately locate a sound source. Simply put, if you have better hearing on one side than the other, you can't accurately tell what direction sounds are coming from.

Less amplification required. A phenomena known as “binaural summation” means that the hearing aids can be set at a lower and more natural volume setting than than if you wore only one hearing aid.

Head shadow effect. High frequencies, the part of your hearing that gives clarity and meaning to speech sounds, cannot bend around your head. Only low frequencies can. Therefore if someone is talking on your unaided side you are likely to hear that they are speaking, but be unable to tell what they have said.

Noise reduction. The brain has it’s own built in noise reduction which is only really effective when it is receiving information from both ears. If only one ear is aided, even with the best hearing aid in the world, it will be difficult for you to hear in background noise as your brain is trying to retain all of the sounds (including background noise) rather than filtering it out.

Sound quality. We are designed to hear in stereo. Only hearing from one side sounds a lot less natural to us.

What are the benefits of rechargeable hearing aids?

For most people, the main benefit of a rechargeable hearing aid is simple convenience. We are used to plugging in our phones and other devices overnight for them to charge up. 

For anybody with poor dexterity or issues with their fingers, having a rechargeable aid makes a huge difference as normal hearing aid batteries are quite small and some people find them fiddly to change.

One downside is that if you forget to charge your hearing aid, then it is a problem that can't be instantly fixed. For most a 30 minute charge will get you at least two or three hours of hearing, but if you are the type of person who is likely to forget to plug them in regularly then you're probably better off with standard batteries.

Rechargeable aids are also a little bit bigger and are only available in behind the ear models.

Finally, just like with a mobile phone, the amount of charge you get on day one is not going to be the same as you get a few years down the line. Be sure to ask what the policy is with the manufacturer warranty when it comes to replacing the battery.


Are behind the ear aids better than in the ear aids?

For most people, the answer is yes. But it's never that simple.

The majority of hearing problems affect the high frequencies a lot more than the low ones. Therefore open fitting hearing aids sound a lot more natural and ones that block your ears up can make your own voice sound like you are talking with your head in a bucket. Therefore in-ear aids tend to be less natural.

However the true answer is we can't tell until we have had a look in your ears to assess the size of your ear canal, and until we have tested your hearing to see which frequencies are being affected.

People with wider ear canals tend to have more flexibility, also there are open fitting modular CIC hearing aids now that do not block your ears.

There is also the age old rule to consider, that a hearing aid will not help you if it's sat in the drawer gathering dust. If the only hearing aid you would be happy wearing is one that people can't see, then that's what you should get.

Most people can adapt to any type of hearing aid, as long as they know what to expect. Have an honest conversation with your audiologist as to what your needs are.

What are channels, and how many do I need?

Generally speaking, six or more. Unless it's none at all.

The number of channels a hearing aid has is often a simplistic way an audiologist will use to explain why one hearing aid is better than another, but channels are complex and it is really not that straightforward.

Hearing aids amplify sounds of different frequencies by different amounts. Most people have lost more high frequencies than low and therefore need more amplification in the high frequencies. The range of sounds you hear are split into frequency bands or channels and the hearing aids are set to provide the right amount of hearing at each frequency level.

Less than six channels and this cannot be done with much accuracy, so six is the magic number. However, a six channel aid is typically very basic with few other features and is suitable only for hearing a single speaker in a quiet room. The number of channels is not what you should be looking at, it's more the rest of the technology that comes with them.

As a final note, different manufacturers have different approaches. One method is not necessarily better than any other. For example some manufacturers have as many as 64 channels in their top aids. Most tend to have between 17 and 20. One manufacturer has no channels at all.

Where can I get the hearing aids covered?

Hearing aids are easily lost, misplaced or damaged and typically are one of the most expensive personal possessions an individual can own. We offer hearing aid warranty cover for £80 per year per aid.  Find out more here

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