Hearing-aid connectivity has become complicated enough that “Does it have Bluetooth?” is no longer a useful yes-or-no question. Modern hearing aids may use Bluetooth Classic, LE Audio, MFi, ASHA or a combination of these depending on the exact model.
For Signia users this matters because the current Pure family includes different connectivity routes. A patient can therefore choose the correct hearing-aid platform but still choose the wrong connectivity version for the phone, computer or streaming habits they actually use.
The short answer
Bluetooth Classic Audio runs on the traditional Bluetooth Classic radio and has extremely broad support across phones, tablets and computers. LE Audio runs on Bluetooth Low Energy, is the newer audio standard, adds standardised support for hearing aids and introduces features such as Auracast broadcast audio. Neither label guarantees that every device combination will work exactly the way you expect.
What is Bluetooth Classic Audio?
Bluetooth Classic is the older and very widely adopted Bluetooth radio used for conventional wireless audio products. Traditional headphones, speakers, phones and computers have relied on Classic Audio profiles for music streaming and calls for many years.
The practical advantage is ecosystem maturity. Many laptops, phones and other devices already know how to work with conventional Bluetooth audio. That does not mean every hearing aid using Bluetooth Classic will behave exactly like a pair of consumer headphones, but broad device compatibility is one of the reasons manufacturers have added Classic connectivity to selected hearing-aid models.
What is Bluetooth LE Audio?
LE Audio is the newer generation of Bluetooth audio and operates on the Bluetooth Low Energy radio. The Bluetooth Special Interest Group designed LE Audio to improve audio performance, standardise support for hearing devices and create new use cases that were not part of traditional Classic Audio.
One of the most important additions is Auracast broadcast audio. Auracast allows a compatible transmitter to broadcast audio to multiple nearby receivers. In the future, this can be particularly useful in public spaces, meeting venues, theatres, transport hubs and assistive-listening environments.
Does LE Audio mean lower power use?
The “LE” stands for Low Energy, but battery life in a real hearing aid depends on much more than the Bluetooth radio. Streaming duration, processing, battery size, microphone use and the manufacturer’s implementation all affect runtime. It is therefore better to compare the actual battery specification of the devices being considered rather than assuming one Bluetooth label guarantees longer use.
Where do MFi and ASHA fit in?
MFi and ASHA are hearing-aid connectivity routes associated with Apple and Android ecosystems respectively. They helped make direct streaming to hearing aids possible before LE Audio became a broader standardised hearing-device route.
This is why a hearing aid can be described as “Bluetooth” while the user experience still differs between iPhone, Android, Windows and other devices. The exact model and operating system matter.
How does this apply to Signia Pure Charge&Go IX?
Signia South Africa currently describes the Pure Charge&Go IX family as offering multiple connectivity routes across the family, including MFi, ASHA, LE Audio and Bluetooth Classic. The Pure Charge&Go BCT IX model is specifically built around Bluetooth Classic connectivity.
That means “Pure IX” is not enough information when connectivity is important. We need to know which Pure IX version is being discussed.
Why might Bluetooth Classic be attractive?
A patient who moves frequently between a smartphone and a conventional Bluetooth-enabled computer may value the broad familiarity of Bluetooth Classic. Signia specifically markets BCT IX around phone and PC pairing and hands-free streaming use cases.
Even then, we still check the specific device and operating system. “Bluetooth Classic” describes the connectivity technology, not a guarantee that every feature is implemented identically on every phone or computer.
Why might LE Audio be attractive?
LE Audio is the forward-looking standard for hearing-device interoperability and broadcast audio. For someone buying hearing aids to keep for several years, support for newer Bluetooth audio standards may be strategically useful, particularly as compatible phones and Auracast installations become more common.
The important word is compatible. A phone can support Bluetooth but not necessarily the exact LE Audio or hearing-aid features a patient expects. We therefore check the actual phone model rather than simply its age.
What about Signia Pure C&G MaX?
Signia’s current international MaX material describes a newer connectivity ecosystem alongside the new platform. Exact connectivity, firmware features and South African model availability should still be confirmed at the time of fitting. If you are comparing the Pure families, see Pure C&G MaX vs Pure Charge&Go IX.
The questions we ask before choosing connectivity
We want to know what phone you use, whether you replace phones frequently, whether calls need to be hands-free, whether you stream music or video, whether you work from a Windows or Mac computer, whether television streaming matters and whether you expect to use public assistive-listening systems as Auracast becomes more available.
Those answers are more useful than choosing between Bluetooth Classic and LE Audio in the abstract.
Frequently asked questions
Is Bluetooth Classic better than LE Audio?
Not universally. Bluetooth Classic has very broad existing support. LE Audio is the newer standard and adds hearing-aid interoperability and Auracast. The better route depends on the devices you use and the hearing aid being fitted.
Will LE Audio work with every Android phone?
No. Compatibility depends on the phone hardware, Bluetooth implementation, operating-system version and the hearing aid. The exact combination should be checked.
What is Auracast?
Auracast is a Bluetooth broadcast-audio capability built on LE Audio. A compatible source can broadcast audio to multiple compatible receivers, including hearing devices, without the traditional one-to-one pairing model.
Choose connectivity around your real devices
Bring your phone model and tell us how you use your computer, calls and streaming. We can then match the hearing-aid configuration to the ecosystem you actually live with.
References
Connectivity information checked against Signia South Africa Pure Charge&Go IX, Signia Pro South Africa Pure IX and the Bluetooth SIG LE Audio overview.
