Tư vấn mua laptop nhẹ, đẹp, màn hình đẹp?

Ban mua tam do de hoc tap hay de lam viec??ban hok noi ro muc dich lam sao biet ma tu van cho ban dc.minh chi tu van theo gia tien cho ban chu ko biet nhu cau su dung cua ban the nao, minh cho ban xem vai cau hinh cua may dong nay ban xem thu nhe!!!!Dell Audi A4 ( Inspiron 14R 5420 ) Core i5 3210M - 4G - 500G - Geforce GT630M 1G - 14 inchCPU: Core i5 3210M ( Ivy Bridge ) 4x 2.5(Ghz) - Boost 3.1(Ghz)RAM: 04 GB DDR3 bus 1600 MhzHDD: 500 GB SATA II 5400 rpmVGA: Nvidia Geforce GT 630M 1G rời + Intel HD GraphicLCD: 14" LED HD 720p (1368x768)DVD: DVDRW - OS: FreeDosWC / Bluetooth / USB 3.0Bảo Hành Chính Hãng Dell VNManufacturer: LAPTOP DELL13.799.000,00 ₫ (VNĐ)----------------------------------------------------------------Asus K43E Core i5 2450M - 4G - 500G - Intel HD Graphic - 14 inchCPU: Core i5 2450M ( Sandy Bridge ) 4x 2.5(Ghz) - Boost 3.1(Ghz)RAM: 04 GB DDR3 bus 1333 MhzHDD: 500 GB SATA II 5400 rpmVGA: Intel HD Graphic ( Onboard )LCD: 14" LED HD 720p (1368x768)DVD: DVDRW - OS: FreeDosWC / Bluetooth / USB 3.0Bảo Hành Chính Hãng Asus VNVX649: Nâu / VX650: Đen/ VX651: Đỏ/ VX652: TrắngManufacturer: LAPTOP ASUS12.599.000,00 ₫ (VNĐ)--------------------------------------------------------------------HP Probook 4440s Core i3 3110M - 2G - 500G -Intel - 15.6 inch - DosCPU: Core i3 3110M ( Ivy Bridge ) 4x 2.4(Ghz)RAM: 02 GB DDR3 bus 1600 MhzHDD: 500 GB SATA II 5400 rpmVGA : Intel HD GraphicLCD: 14.0" LED HD 720p (1368x768)DVD: DVDRW - OS: Free DosWC / USB 3.0Bảo Hành Chính Hãng HP VNManufacturer: LAPTOP HP12.899.000,00 ₫ (VNĐ)