Chromebooks started out as affordable devices for home users and students, but there are now plenty of models available with business-grade specifications. Asus recently announced two such Chromebooks, the CX9 and CX5. The CX5, reviewed here, is in a 'Flip' device, which means it has a 360-degree rotating screen hinge to enable tablet-mode operation. With a 15.6-inch touch screen, 11th generation Core i3 or i5 processors and the latest Chrome OS features, can it really function as a fully-fledged business laptop for as little as