Anyone who has the privilege of dealing with cold and bitter winters knows how much of a pain it is to use a smartphone with gloves on. Normally you would have to take your gloves off in order to take an important call or send a text back to Mom. Not with the Galaxy S4 though.
The Galaxy S4, like the Nokia Lumia 820 and 920 from last year, features Synaptics tech that increases the responsiveness of the capacitive surface. This will allow the touchscreen to detect input through gloves and even long fingernails instead of just the naked hand.
We're not sure what sensor the Galaxy S4 is using to do this. However, the Lumia 820 and 920 uses a Synaptics ClearPad Series 3 sensor; it wouldn't be surprising if the Galaxy S4 was using the same thing.