Samsung is preparing a full-HD smartphone for AT&T according to Samsung’s leaked User Agent Profile. The device will feature a full 1080 x 1920 display resolution.

The device model ID is Samsung SGH-I337 and it may very well be the Samsung Galaxy S IV.

Samsung is getting ready to announce the Samsung Galaxy S IV in March, with the release date most likely being around April.

Here is the information from the USProf file:

<!– Vendor/model –>

<prf:Vendor>SAMSUNG

<prf:Model>SGH-I337

<prf:CPU>ARM11

<!– Display –>

<prf:ScreenSize>1080×1920

<prf:ColorCapable>Yes

<prf:BitsPerPixel>16

<prf:PixelAspectRatio>1×1

<prf:ImageCapable>Yes

<prf:ScreenSizeChar>25×21

<prf:StandardFontProportional>Yes