Weighing about 4.02 ounces or approximately about 120 grams with 114.4 mm x 59.9 mm x 11.7 mm for the dimension size (4.51"x2.37"x0.47" in inches), the Samsung Illusion equipped with TFT Capacitive touchscreen at 3.5 inches diagonal diameter. It has 320 x 480 pixels resolution or usually known as having HVGA resolution. Auto orientation rotation in this touch bar form factor design is a must, that why it has accelerometer sensor, and for battery saving, the auto turn off the screen while in calling using proximity sensor also available. It support multi touch input method and has touch sensitive control.