What does you cellphone do?
According to Ericcson's annual mobility report, there are at least 3 billion smartphone users in the world, a number projected to swell to nearly 6 billion within the next five years. As the devices have grown more sophisticated—the better to appeal to fickle and tech-savvy consumers—so have many of their functions.
Some of these tricks show how smartphone makers are building a better mousetrap (with the hope of locking in new clients). Others are tricks that users came up with themselves, or have yet to discover.
Although consumers rich and small have them, smartphones convey a sense of luxury and professionalism, and they've evolved into an essential part of daily life. While most users may feel they know their phones inside and out—from the location of each app to how long the battery takes to charge—some offer little used or even unknown features that might surprise even the most jaded techie.
Recently, CNBC surveyed the sprawling universe of smartphones, and picked out a few gems worthy of mention.