How to compare between WAN and LAN?

There r two main differences between LAN & WAN: 1) network having fast speed at least 10 mbps is called lan while wan has slow speed as 64 kbps. 2) wan connects two lan far apart to each other using wan technologies such as leased lines, internet, frame relay, etc. while lan connects two systems/lans near to each other through ethernet/fast ethernet/gigabit ethernet.