Called dexcom spend $800 on sensor and transmitter checked before i bought it that it would work with my phone so i dont need a receiver. Get it all home and setup and i guess no its not compatible with android 12 and no its not compatible with samsung fold. Come on dexcom 1) train your staff this is not cheap and 2) this phone has been out over 6months and is the number 1 selling samsung handset when will it be usable