The ultra-large tablet market is heating up. While Microsoft and Apple have both revealed new 13-inch devices, Acer has taken things a step further and shown off a 17.3-inch monster tablet with two built-in kickstands.

The Aspire Z3-700 runs Windows 10 and can also be hooked up to a full keyboard and mouse for desktop productivity. Its 1080-pixel touch screen supports stylus input for drawing or pinpointing.

It's unlikely to replace your Surface Pro 4 or iPad, however: weighing 4.4 lbs. and with a five-hour battery, this is more designed for moving around the house than taking on big journeys. The Z3-700 supports up to 8GB of RAM, solid state and hard drive configurations, and a choice between Intel Pentium and Celeron processors.

Acer also unveiled a new convertible Windows 10 laptop. The 14-inch Aspire R 14 will fold into a tablet mode at a moment's notice, taking full advantage of the Continuum adaptive interface. The laptop comes with an Intel Skylake processor, up to 8GB of RAM, solid state storage and ultra-fast MU-MIMO wireless.

"We worked closely with the Acer team throughout the development of these new devices, which ensures our customers can make the most of Windows 10," said Terry Myerson, vice president of the Windows and devices group at Microsoft.

The Z3-700 will be available by the end of the year in Europe, the Middle East and Africa from €599 ($681.36). Acer has yet to announce North American availability or pricing. The Aspire R 14 will be available in North America in late October starting at $699, with a wider release in Europe, the Middle East and Africa from €799 ($908.86).