Toshiba Radius 12

Gorgeous 4K, Technicolor-certified screen option ; Lightweight design ; Keyboard is more comfortable than it looks ; Fast performance ; Robust audio ; More ports than some of its competitors ; Generous entry-level specs

Worst-in-class battery life ; Less premium design than rival machines ; Frustrating touchpad

Toshiba's Radius 12 convertible has the ingredients of a great ultraportable laptop, but unfortunately, it would seem that its greatest asset is also its greatest weakness: That gorgeous 4K, Technicolor-certified screen option results in worst-in-class...