Samsung just recently unveiled their new Ultrabooks powered by Windows 10 and the latest Intel Skylake processors.
Both the 13.3 inch Samsung 900X3L and the 15 inch Samsung 900X5L are very thin and light: While the smaller model weighs only 860 g (1.9 pounds) and is about 1.3 cm (0.5″) thin, the bigger version is just slightly heavier and thicker with 1.3 kg (2.9 pounds) and 1.5 cm (0.6″). According to South Korean documents, both models will be available in three different versions varying in terms of processor, RAM and storage. All of them will have a full HD display, which can be folded back 180 degrees.
Furthermore Liliputing mentions that there will be at least one model with a resolution of 3200 x 1800 pixels. Since this model has a larger battery than the other 13.3 inches versions it weighs about 1 kg (2.4 pounds).
Additionally, Samsung is also adding a Lite version of the 13.3 inch laptop to their 2016 lineup.