Though making a meaningful smartphone comparison used to involve pitting Apple (AAPL -0.18%) against Google (GOOGL 9.71%) in a duopoly, the other players in the market have become increasingly important to understanding the landscape. Microsoft's (MSFT 2.47%) Windows Phones have gained traction, BlackBerry (BB 2.34%) refuses to go away, and Samsung has carved out its own niche unlike any other. Any meaningful smartphone comparison now includes multiple devices across multiple operating systems, not to mention a look at the markets in which they compete.

Confusing the matter further is the recent release of Facebook (META -0.29%) Home, which brings a brand-new market segment to the forefront. Where this development will lead remains to be seen. In the video below, Fool.com contributor Doug Ehrman discusses the most important elements of a smartphone comparison and which names to watch heading into the summer.