How Do You Measure Up? New Health Gadgets Can Tell You

An array of new personal health devices aims to help you beat depression, lose weight, reduce stress or improve your fitness level.

If it's January, it must be resolution time: that once-a-year phenomenon where Americans vow to do good things for themselves, like lose weight, get in shape and lower stress in their lives.

If it's January, it also must be time for CES — the once-a-year Consumer Electronics Show extravaganza in Las Vegas this week, where in 2014, 3,200 exhibitors will showcase innovative, new products for an expected crowd of 150,000 people.

One of the fastest-growing areas for new products: digital health and fitness devices, geared toward helping people tackle those New Year's resolutions head-on. "We've seen dramatic growth in this category," says Karen Chupka, senior vice-president of international CES and corporate business strategy. "In 2013, we had 169 companies showing in the digital health and fitness category. This year, we have 215."