ReSound Smart 3D app "Optimize MFi"

On the latest version of this app on the iPhone there is a setting under More to “Optimize MFi Connection”. Has anyone else tried this? My experience is awful, it just disconnects and reconnects each time you go to the app, its fairly quick. But its much quicker to just NOT disconnect and reconnect. I see nothing but negative attributes for this feature. Anyone else?

I imagine it is for those who always have the app up. Priority is assigned to apps and long inactivity would lower that.

Here is the info my audiologist sent me:

ReSound is pleased to introduce an update to the ReSound Smart 3D app.
ReSound Smart 3D app version 1.2.2. includes a new feature, Optimize MFi connection, miscellaneous bug fixes and performance improvements. Optimize MFi connection is an optional setting that is intended to improve connection and stability of audio streaming, and optimize performance for users switching between iOS devices. Visit the ‘More’ menu within the app to find the Optimize MFi connection function.

When Optimize MFi connection is enabled, the Find my hearing aid function will reflect the location when the app was last open and active. Even if the app continues to run in the background, it will no longer track the location status in real-time.

When Optimize MFi connection is disabled, the Find my hearing aid function will work as it does today - the last location when connected to the app will be reflected as the app is running in the background.
Optimize MFi connection is defaulted ‘Off’ in the app. If a patient reports connection or streaming issues, they may choose to turn this feature on. If the patient does not report any connection issues and desires the full benefit of Find my hearing aid, the Optimize MFi connection should remain off.

ReSound Smart 3D version 1.2.2. is available today for both iOS and Android.

Thanks for this info. From personal experience, its awful. No improvements, just constantly waiting for it to connect, each and every time.

Thanks for posting. I was wondering why all of a sudden my phone app wasn’t staying connected! I updated the app, turned on the “Optimize” (who wouldn’t want everything to be “optimized”?) and had an adjustment to the HAs the same day. I was thinking she had screwed something up and was waiting to get another adjustment to undo whatever changed. Glad to know it was a quick fix.

MFi on the Smart 3Ds work very good for me. Only issue I had is occasional clicking and sometimes the hearing aids disconnect from the iPhone. Often just one ear. Seems to have improved after the last few updates.

My audiologist did say that older iPhones (5SE, 6) don’t work well and Resound is recommends upgrading these phone. This may explain why some people have no issues and others do.


Glad I was able to help. Yes, that was exactly my experience, the ReSound app was flaunting the new optimize feature, and its just awful. There was nothing really broken, if I leave that disabled, the app/aids/phone are all fine.

I have a 6S, not sure that upgrading the phone makes any difference. I am tempted by a new one, mostly for a larger screen so I can see the GPS display better.