Seiko

By  Jonah Comstock 12:00 pm June 5, 2013
As wearable all-day activity trackers compete to be smaller, more convenient, and more comfortable, there's one problem many of the newer entrants are running into: battery life. If users are supposed to be wearing a tracker all the time, when do they plug it in? And the point when a user takes off a wearable device to plug it into the wall is the point when they're most likely to lose interest...