Samsung Galaxy S4 or S4 Mini

Samsung Galaxy S4 or S4 Mini?
I planning to buy Samsung Galaxy latest mobile, hard to make a judgement in between this two models. Here is comparison of the size.

Samsung Galaxy S4
Body Dimensions: 136.6 x 69.8 x 7.9 mm (5.38 x 2.75 x 0.31 in)
Weight: 130 g (4.59 oz)
Samsung Galaxy S4 Specs

Samsung Galaxy S4 Mini
Body Dimensions: 124.6 x 61.3 x 8.94mm
Weight: 107 g (3.8 oz)
Samsung Galaxy S4 Mini Specs