Jawbone UP 2, 3, 4

The latest suite of activity trackers gets more comfortable, more robust and a bit surprising

Jawbone, an early mover in the wearable fitness tracker category, today announced two new products and shared updates on a third. The UP2 replaces the UP24, the UP3 adds cardiovascular and temperature tracking and the UP4 layers in contactless payments through an unexpected American Express partnership. Though many anticipate the first deliveries of Apple Watch later this month, the UP (and similar devices) remains relevant …

Hands On: The New Jawbone UP

The reborn wearable tracker is a significant improvement over the original

Initially released this time last year, the Jawbone UP, designed by Yves Behar, made its debut as a holistic life tracker worn on the wrist 24/7. As you may remember, the bendable band syncs with an iPhone app to record bodily information such as daily activity, sleep and diet. You might also remember the original device was plagued with issues ranging from general usability to …