Or any other phone lacking a microSD slot. I'd assume it works that way on an iPhone, but I can at least plug a flash drive (or card reader) into my Pixel 7a's

Or any other phone lacking a microSD slot. I'd assume it works that way on an iPhone, but I can at least plug a flash drive (or card reader) into my Pixel 7a's USB-C port. Not quite as nice as having always-ready extra storage, but handier for quick swaps.