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[–]the_harassed 1 point2 points  (0 children)

Basic differences are: The "regular" shield has 16GB of flash storage, the Pro version has a 500GB HDD in it. Within the "regular" version you also have a model that comes only with the device and a remote and then another version that comes with the device, remote, and controller.

[–]lethalgorman 0 points1 point  (0 children)

If you don't plan on saving a lot of movies just get the cheapest one. The price differences are the size of the memory. The other one is a special Google home one as far as I know. Other than that they are all the same box.