Which is a genuine product of iphone 5?

I visited few shops yesterday and few apple cover (the back side) had eng and chinese, while shops had box label had in english and was the UK version, while the remaining had eng and arabic which is the middle east version, Kindly recomment which one should i opt for.since the price varies, from dhs 2500 to Dhs 2879 so should i go for the end high price?

Where do you live? United Arab Emirates?
International version is better, You can get It from Malls or Hypermarket to feel comfortable