If you still don’t know which laptop size you want ? Here is short guide for helping you choose a laptop which match and fit to your needs. Good luck.
10 to 12 inches: The thinnest and lightest notebooks around have 10 to 12-inch screens. However, you may sacrifice keyboard size for portability. Many laptops in this class double as tablets.
13 to 14 inches: Provides the best balance of portability and usability. Laptops with 13- or 14-inch screens usually weigh between 3 and 4.5 pounds.
15 inches: The most popular size, 15-inch laptops are the least expensive and provide plenty of desktop real estate. While most 15-inchers are easy to take from room to room, some are on the bulky side.
17 to 18 inches: If your laptop stays on your desk all day, a 17- or 18-inch system will likely provide everything you need for work and play. Many gaming notebooks are in this size category.