As the sequel to Withings' 2010 vintage Connected Scale, the new Smart Body Analyzer WS-50 ($150) looks extremely similar on the outside but features some substantial under-the-hood revisions. Still built with a handsome dark glass and metal top, the Smart Body Analyzer adds heart rate, air quality, and ambient temperature monitors to the prior weight and body fat calculations, using a Health Mate app to track stats over time. In addition to 802.11b/g/n…
