Yesterday I upgraded mine and my wife's phones from previous versions of iPhone to iPhone X. Her old phone was 128 gb, the phones I upgraded to are 64. Turns out her current phone is using 70, 50 of which are pictures. I upgraded the icloud storage so all her photos are in icloud, I thought that would free up space on the phone to get it under 64 so that I could take the back up and set up her new phone using around 20 of the 64 gigs. I was wrong, it's still showing as using all 70. Is there a way to keep the photos visible on her phone but not taking up space on her phone?