Or carry an IPad with you. An IPad does all I need when I need it but I don't have to carry it around with me all the timeI've traveled in Asia pre & post smart phones.
I like to unplug, but the internet is an amazing tool. If you have plenty of time to chat with locals for a restaurant recommendation, bus schedule, pricing estimates for travel/accomodation/events, then great, but if not, wifi and your phone are a beautiful thing.