It looks like Jarir is anticipating a large demand of iPhone 4S that’s why they are now taking pre-order/reservation for iPhone 4S. You can go to Jarir’s Facebook page to place your pre-order and here’s the complete price list for the iPhone 4S.
16 GB – SAR 3,799
32 GB – SAR 4,799
64 GB – SAR 5,799
No bad but still high considering iPhone 4 was sold at SAR 2,500 but lower than the other Apple reseller.