Coke vs. Pepsi, UPS vs. FedEx, and Netflix vs. Amazon are all some of the greatest rivalries of all time. But no list of competitors would be complete without the head-to-head battle of the smartphones: Android vs. iPhone. Some differences between the two are obvious (cough cough, green text bubbles). But the real differences go far beyond the cosmetic. From facial recognition and customer service to malware vulnerability and system accessibility, these are the seven biggest things that set Androids and iPhones apart.