In Pictures: Apple’s most important iPhone upgrade...
With the iPhone 5s, Apple introduced Touch ID and brought futuristic technology into the mainstream. Though the rollout of Touch ID elicited some controversy from privacy proponents, the feature has been an all-out success for Apple and a key selling point for the company's flagship iPhone. What's more, the introduction of Touch ID has led to a decrease in iPhone thefts. Looking ahead, Touch ID will likely be essential should Apple ever decide to embrace mobile payments as a native feature.
In Pictures: Apple’s most important iPhone upgrades over the years