The Real Reason Why Micro SD Card Slots Are Disappearing from Smartphones. This article makes clear that manufacturers are ditching Micro SD card slots for profit. They can sell phones with more internal memory;but, they can't get extra money for providing a micros SD slot. How can consumers fight back? How about we don't buy phones that don't provide this convenience? I might be using my Note 3 and Note 4 phones for a long time, until I find another phone that meets my needs. I suspect that there are a lot of consumers out there who agree with me. Vote with your wallet.