Need a new phone embarrassing mine is 6 years old. Was looking at the iPhone 15 or the iPhone 14, Tesco seems to have good deals on the 14 with unlimited data for £40 a month and as it's club card price it won't increase during the length of the contract or am I better off getting the 15? I don't usually get contracts so any advice will help. Would it be a bad idea to get the older one?.