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Out this summer, the UP4 will combine the heart-tracking features of the UP3 with NFC payments by American Express. A lightweight UP2 tracker rounds out the offering.
Balance and flex sensors collect data about each ride, and the app can even overlay that data on a video of your run.
Amazon's superfans will love it already, but in a few more iterations, it could make Amazon superfans of us all.
Order old-school paper prints directly from the most advanced camera you've ever owned—your smartphone.
No need to haul your laptop to class! These killer apps let you take better notes, keep all your important files handy, and even save money by renting textbooks instead of buying.
No more arguing over whose credit card has to take the hit.