Lenovo yoga 500 series with 4gb RAM, 1 TB internal mem, 2gb Graphics and the most amazing 360 degree flip rotation and touch screen which is the cherry on cake makes it the most amazing laptop ever.Being touch screen and 360 flip rotation, its highly user friendly like you can fold it and use it as a tablet.Windows 10 provides hightech features for good interface.Being a big brand like lenovo, its trusted, reliable and satisfied one.It provide one year hardware and software warrranty with all of technical support.