With the iPhone release date approaching Apple is doing it’s best to down play the shear size of the phone. They have now resorted to using larger than normal hand models.
The actual dimensions of the phone will be 4.5 x 2.4 x 0.46 inches / 115 x 61 x 11.6mm. The Weight 4.8 ounces / 135 grams.
Not huge but by no means the mini size of todays new phones.