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Mobile Minutes: Facebook mimics Craigslist; IWatch tracks glucose; Science refutes FitBit; Sidecar’s package delivery

facebook shoesNo one can stop Craigslist, but Facebook is trying again
Facebook is adding a new way for people to sell things to friends and neighbors on the social network. The company said on Tuesday that it will start rolling out new features to Facebook Groups, allowing users to list and find products for sale and to set pickup or delivery locations.
Read more on Bloomberg

Apple Watch app made by Dexcom will display blood glucose levels
When the Apple Watch launches in April, one of the first apps that will be available for the device benefits diabetics because it reports glucose levels on a graph. This app — which was designed by medical technology company Dexcom — has already been approved by the U.S. Food and Drug Administration (FDA).
Read more on Forbes

Science says FitBit is a joke
Recently, bands in assorted colors began appearing on the wrists of everyone from young athletes to old lawyers. FitBits, FueldBands, and other wearable fitness trackers promised to enhance the health of the wearer by accurately monitoring every step, calorie, and sleep pattern. But, according to a new study published Tuesday in the Journal of the American Medical Association (JAMA), the apps on your smartphone do the job just as well, or even better—at least in terms of measuring your steps and your calories.
Read more on Mother Jones

Sidecar, a ride-hailing start-up, pushes into package delivery
The company announced on Monday it plans to use its fleet of cars to introduce a package delivery service, delivering items like food and groceries for partner companies. That service will be powered by Sidecar drivers who are also picking up and dropping off passengers, a move the company says cuts pricing and delivery times dramatically.
Read more on New York Times