guys,wana ask if there any difference with MY set n import apart from warranty? i nvr use iphone,wana try buy 5s to try use,but since 5s is oredi discontinued so izzit advised to buy 5s? dont bother recommend me 6 or 6s new as i dont have that much budget,my concern is import set can use normally as MY set? got offer 5s 64gb 1.4k,from the pics conditions very good...please advice.