I was horrified when I found out the Dexcom G6 system and Follow app won't work when I upgraded to my new Samsung Galaxy S21 FE 5G. It worked for a week then quit. My wife, an RN had been monitoring me with Follow. Now it's a bad situation. When I called Dexcom this morning the person on the phone said it could be months before Dexcom6 is compatible with this phone. That's totally unacceptable.