Fitbit Flex

Updated below with statement from Fitbit.

Fitbit Force This week there's a new report about leaked details of an upcoming Fitbit device -- this is the third device that has leaked from Fitbit in recent weeks -- The Verge reports that the Fitbit Surge will cost about $250 and will offer GPS-enabled distance tracking, heart rate sensing, and call and text message notifications.

In February Fitbit announced a voluntary recall of its newest activity tracking device, the Fitbit Force, after a number of users complained of skin irritation from the wristworn device.

The corporate wellness market is an increasingly big opportunity for activity trackers like Fitbit, but data is just now starting to come in about how much those programs really help corporations.

The updated Fitbit app tracks frequency of exercise on a calendar.

Pasadena, California-based Stir, maker of the Stir Kinetic Desk, has announced integration with Fitbit's devices that have display screens -- the Fitbit Flex, Fitbit One and Fitbit Zip.