I use an Android phone with Phonak aids, using a Phonak Compilot 2 device. The iPhone and Android direct connects are, to me, just getting started and they have limitations. In terms of function, neither can compare to the Compilot 2 or the Resound Phone Clip+.
With the Compilot 2 I connect to two phones and an additional tablet or laptop, at the same time. I answer whichever phone rings (office phone or cell), and the streaming from the third device pauses until the call is finished.
I can also connect to generic Bluetooth transmitters and I have a Phonak TV transmitter.
I have an external lapel microphone attached to the Compilot 2 and I wear the Compilot 2 under my shirt and I never take it out. Yes, I get some looks sometimes when my phone rings and I tap my chest and start talking.
The Compilot 2 is very solid, with no connection issues.
None of the last few paragraphs would be true for the direct connects. The MFi thing doesn’t connect to anything else and the Phonak Marvel connects to only one device at a time.