iphone 6s plus 64gb price in ksa extra iphone 6s 128gb price in ksa extra iphone 6s plus 64gb price in ksa jarir iphone xs 128gb price in ksa extra iphone 6s plus price in uae 128gb iphone 6s plus original battery price in ksa iphone 6s plus 128gb price in saudi arabia iphone xs 64gb price in ksa extra