Multiple choice general knowledge What brand of Laptops do Leonard and Sheldon use? HP Lenovo Toshiba DELL XPS Reveal answer Fill a bubble to check yourself D Correct answer Explanation In The Big Bang Theory, Leonard and Sheldon are primarily shown with Lenovo laptops (specifically ThinkPad models). However, the show features various brands across episodes. The DELL XPS answer is debatable as the show isn't consistent.