The size of the Switch has been a popular discussion, especially considering 99% of gamers have yet to get their hands on one. Below are several printable PDFs that will help you understand the size of the Switch console and its Joy-Con Controllers.
Switch (screen on) + Joy-Con Controllers: http://www.mediafire.com/file/47xjt7xx9cdf0zw/Real_size_Nintendo_Switch_%28screen_on%29.pdf
Switch (screen off) + Joy-Con Controllers: http://www.mediafire.com/file/ej3cya69tnkxrul/Real_size_Nintendo_Switch_%28screen_off%29.pdf
All Joy-Con styles : http://www.mediafire.com/file/hs8djhp458har5d/Real_size_Joy_Cons_%28Grip_%2B_strapped_%2B_bare%29.pdf
Grip + Strapped Joy-Con Controllers : http://www.mediafire.com/file/h9te6o2c357vjxu/Real_size_Joy_Cons_%28Grip_%2B_strapped%29.pdf
Joy-Con Controllers (all sides): http://www.mediafire.com/file/d0spalqradjk846/Real_size_Joy_Cons_detailed.pdf