I quit having a contact with phones almost 4yrs ago, I buy my phone directly from apple & unlocked, and have 1 month sim only contract with Three... £26 all I need 😀
Ditto - Monthly rolling Sim Only on O2 for the past 4.5 years, £21/m unlimited data (well 5gb as I've found) and never gone over the minutes/texts. Much prefer the option of buying whichever handset I wish, though TBH it's been an iPhone since the first one was released in the US 🙂
I'll be going for the 4.7" but unsure on colour yet, probably be silver as the grey should be proper black IMO.