All the Galaxy S20 phones share high-end hardware, 5G connectivity and screens with a higher, 120Hz refresh rate. But they also have key differences among each other, too.

Preorders for the Galaxy S20, S20 Plus, and S20 Ultra begin on Friday, Feb. 21, at 12:01am ET. Orders will arrive March 6, the same day as retail availability. You can reserve an S20 through ...