difference between surface book and surface pro
In terms of battery life, the Surface Pro 4 is claimed to offer 9 hours. The 2015 Surface Book bumps this up to 12 hours and the Surface Book with Performance Base offers 16 hours. Microsoft Surface Book 2016 goes super-powerful, increases battery life, amps graphics.
The 2015 model of the Surface Book as a laptop measures 312.3 x 232.1mm with a thickness of 13mm to 22.8mm and it weighs either 1516g or 1576g, depending on the configuration, making it over double the weight of the Surface Pro 4.