Will a iphone and an ipad brought from america work in the uk?

Will a iphone and an ipad brought from america work in the uk?

Added (1). For my phone I have a sim only one month rolling contract if that matters?

Yes. Why would it

Yes, you'll just need to get UK adaptors to charge them up

Of course its made in China they do not make them specifically for any country if they did their sales would be very low

I've heard they don't always

If you don't have an international rate plan for your phone expect to pay for some serious roaming rates. Your iPad will connect any public Wi-Fi.