I wanted to upgrade my iPhone 4 to a 5s, but could not find one anywhere. So I kept my iPhone 4 and upgraded my LG phone to a Samsung Galaxie Note 3 on the 1st day it was available.
The iPhone 4 has a data plan of 200 MB, the Note 3 has a data plan of 3 GB. I love the large 5.7 inch screen that makes the Internet so much more useful for me. Overall, the Note 3 is quite good, but just not as polished as the iPhone.