This 1.9-pound smartphone's battery life is measured in months
Bottom line: Advances in battery technology combined with more efficient hardware and smarter software have allowed smartphones to reach impressive runtime milestones. To borrow a phrase from the automotive world, however, "there's no replacement for displacement" – meaning capacity is still king. The problem, of course, is that few want to lug around a handset with a giant battery just to get more uptime between charges… or at least, that's what most manufacturers believe. For those who priori