Lenovo offers its 5.1-lb. Lenovo Ideapad 310 Intel Core i7 2.5GHz 15.6" Laptop in Red, model no. 80SM0047US, for $549.99. Coupon code "USP3107US921" cuts it to $527.49. With free shipping, that's $43 under our mention from a month ago, $223 off, and the lowest total price we've seen. It features an Intel Core i7-6500U 2.5GHz Skylake dual-core processor, 15.6" 1366x768 LED-backlit LCD, 8GB RAM, 1TB hard drive, 802.11ac wireless, Bluetooth 4.0, DVD burner, USB 3.0, 2-cell battery, and Windows 10 Home 64-bit. Deal ends October 7.