Microsoft Band update improves battery life with GPS power saving mode

Microsoft has been steadily improving its Band software in recent weeks. An update in December added music controls and a movement reminder, and the software maker is rolling out a new update today that improves battery life. Microsoft claims battery life can improve by up to four hours if you track bike use or runs. The battery life improvements come from a new power saving mode for GPS, allowing the Band to track location in intervals rather than continuously. Microsoft's new power saving mode...