"The best thing to happen to iPhone since iPhone." This phone released and introduced some revolutionary changes: 1 GB memory, LTE Connectivity, and lightning connectors. Even more successful than its predecessor, it sold 5 million units sold in its first week. Newer versions of this model–the 5C and 5S–were released roughly a year later, on September 30, 2013.
"You're more powerful than you think." was the iPhone 5S's marketing mantra. With slow-motion video capture, dual flash, touch ID, 4" display, and 8.0 MP camera. While the iPhone 5C, released in several different colors, had features similar to the iPhone 5S's, it still sold over 9 million units, collectively.