Hi, i hope this is a helpful titbit of info!!!! Was chatting with an apple expert" "You are chatting with Deborah L, an Apple Expert Hi, my name is Deborah L. Welcome to Apple! The new iPhone 4S. What is the RAM capacity? Hi, Welcome to Apple Chat! We offer the 16, 32 and 64GB They will be available for pre order on October 7th for delivery on October 14th in the UK. Yes I know that is the storage capacity, but the Random Access Memory, is it 512mb or 1gb? 1GB normally. And that is an upgrade form the iPhone 4's 512mb then. Yes, it is" Hope you find this as interesting as i did!