Do all iPhone 5's have 4G? (read details)?

I'm thinking about going on contract with O2 and getting an iPhone 5. However, will it have 4G? I'm confused because the 4G phones on EE are much more expensive, so if I go with an iPhone 5 on O2 at a cheaper price, will it have 4G or just 3G?

All Iphone 5's have 4g (LTE) capability but only the EE network currently provide 4g signal in the UK.

  • On my iphone my some apps crash! Read Details? When i open Cydia or Safari it closes! It does that to my sis to and her phone isn't jailbroke! I already tried to reset. I go on a game and the game freezes! What do i do?! We have an iphone 4 If its because its jailboke my sis iphone isn't jailbroke and it does that Oh and i already tried double clicking the home button and deleting the background apps and still does the same thing.
  • My iPhone 7 is stuck on the restart screen, anyone have tips? (Read for details)? I got the screen replaced yesterday as it was badly smashed, and today when the phone went flat, it then went to the restart screen. The phone keeps blinking off and on every 30 seconds or so, but every time it's on, it's the white apple logo on a Blank black screen
  • My cousin gave me her iphone 4, Can i use it? (read details)? Ok, so my cousin recently gave me her iphone 4 that she doesn't use anymore because she switched phones. The phone still has her sim card though and i have t mobile prepaid and want to switch my service to the iphone can i do that? Do i have to unlock it?
  • Is there any app for tracking my iphone if it gets stolen? Read Details? Like if someone steals my iphone at school i can go on the website and track it, find EXACTLY where it is so i can go to the place and get it back? Oh i do have Find My iPhone on, but one time when my dad took it to the store and didn't come back i got on the icloud web and to see where my iphone was to see where my dad was and it was worthless!