I broke my phone in China a few years ago and went for the cheap 2nd phone option too. Decided that since I may well end up carrying two phones whilst away I wanted something small. Wound up using the Panasonic G51 for a good while. It's not actually that simple - has several annoying UI issues - and it's now ancient (you can still get them on ebay though) so the battery life isn't great. But it's TINY. So stupidly small I can pop it into the change pouch of my jeans. Why can't someone come out with a modern equivalent. Even so, I have a couple as spares now.