Health March 6, 2015 12:10 pm Why Aren't More People Buying Smartwatches? Smartwatches offer e-mail and other alerts, all on your wrist — but many people aren’t convinced to buy one. US & World Videos 1:21 Watch the trailer for NBC's My New Favorite Olympian 2:03 Girl, 14, arrested in murder of 79-year-old grandmother in Lauderdale Lakes 0:45 Girl, 14, arrested in murder of 79-year-old grandmother in Lauderdale Lakes 0:59 Aerial view of Lauderdale Lakes apartment where 14-year-old allegedly murdered grandmother 1:46 Heat waves getting hotter, longer, and more frequent because of climate change