The watch does all this by communicating with the owner's Android phone using Bluetooth, Sony said.
The watch features a 1.3-inch organic light-emitting diode display and can alert users to an event or an incoming call by vibrating, Cnet.com reported Thursday.
The watch could be useful for those who don't want to repeatedly pull their smartphone out of their pocket, it said.
The handset can run four days on a single charge, Sony said.
Announced at the Consumer Electronics Show in January, the $150 SmartWatch is available on Sony's online marketplace and in its stores and will soon be available at other retailers, the company said.
This is Sony's second try at a "smart" watch; in 2010 it launched LiveView, another watch capable of interacting with Android phones that sold poorly, Cnet.com said.