Though making a meaningful smartphone comparison used to involve pitting Apple (AAPL -0.69%) against Google (GOOGL -0.77%) in a duopoly, the other players in the market have become increasingly important to understanding the landscape. Microsoft's (MSFT 0.59%) Windows Phones have gained traction, BlackBerry (BB -3.01%) 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 0.16%) 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.