The ICONIA W511 tablet is the world's first Intel processor-based tablet with Acer Always On technologies. Just press the power button and the device is up to three weeks in standby power turned on as a smartphone and updated. If the Iconia W511 is docked to the keyboard (purchase separately), it shall remain charged for 18 hours. Long time on the way to work, in meetings, at one stop, international flights during the coffee break, dinner and even on vacation to work in distant lands without mains.