Laptops with 15-inch screens are the most popular size, but most are way too heavy to carry on a regular basis. Most truly portable 15-inchers on the market, such as the MacBook Pro and the Dell XPS 15, tend to cost well over $1,000.
Enter the Asus VivoBook S510, a 15-inch laptop that weighs just 3.57 pounds, starts at a reasonable $699 ($799 as tested) and packs compelling features like a colorful, 1080p display, narrow screen bezels, an attractive aluminum lid and optional dual-storage drives.
