jawbone up2 and up4

Jawbone unveils Up2 and Up4 activity trackers to join the Up3

The pioneering wearable tech brains at Jawbone have unveiled two new activity trackers, the Up2 and Up4, to join the long-awaited Up3. Jawbone Up2 According to Jawbone's US website, the Up2 is set to replace the brand's original tracker, the Up24. We're very happy to hear that the Up2 has a few added features, as well…