Recently I noticed my iPhone 4s is running low on memory. I did take more photos and videos. But I noticed something strange. My sister has a 16GB iPhone 4 and I have a 16GB iPhone 4s. She has 568 songs (3.5GB) and I have 366 songs (4.1GB). No songs of mine and hers are over 256 in bit rate. She has 366 photos (0.94GB) and I have 205 photos (4.2GB). Why is this?
How to free up more GB on iPhone 4s?
Her pictures have lower resolution than yours.
The higher the resolution, the bigger the file size.