You don't really need a new smartphone. From a column on the Washington Post (may be paywalled): Sure, some of them squeeze more screen into a smaller form. The cameras keep getting better, if you look very close. And you had to live under a rock to miss the hoopla for Apple's 10th-anniversary iPhone X or the Samsung Galaxy S8. Many in the smartphone business were sure this latest crop would bring a "super cycle" of upgrades. But here's the reality: More and more of Americans have decided we don't need to upgrade every year. Or every other year. We're no longer locked into two-year contracts and phones are way sturdier than they used to be. And the new stuff just isn't that tantalizing even to me, a professional gadget guy. Holding onto our phones is better for our budgets, not to mention the environment. This just means we -- and phone makers -- need to start thinking of them more like cars. We may have reached peak smartphone. Global shipments slipped 0.1 percent in 2017 -- the first ever decline, according to research firm IDC. In the United States, smartphone shipments grew just 1.6 percent, the smallest increase ever. Back in 2015, Americans replaced their phones after 23.6 months, on average, according to research firm Kantar Worldpanel. By the end of 2017, we were holding onto them for 25.3 months.