• Really depends on the person. I have never managed to fill up a 128 gigabyte phone, but that is because I am blind, so I am not taking pictures in 4K videos. The biggest thing on my phone is my music collection, which only takes about 5 gigs or so. This phone that I have now is a 64 gigabyte phone and while it’s mostly full, it’s still not there yet. According to the Android settings, I still have about 23 gigabytes left on this 64 gig phone. It says I have used about 64% and if this were a 128 gig phone, that would be about 32% or so.