Hey guys, I'm a medical student and my hospital has started using a pager service that runs through smartphones. This is great, except they require wifi to be on at all times! There is no way my current phone (Sprint EVO 4G) will be able to last even a few hours with wifi running. I've been looking to upgrade my phone anyways, but I need one that has good battery life. If anyone could point me in the right direction I would be grateful! I'm on Sprint by the way.