Adorama via eBay offers the refurbished 4.2-lb. Lenovo Flex 5 Intel Kaby Lake Core i7 2.7GHz 15.6" 1080p 2-in-1 Touchscreen Laptop in Black for $669.99 with free shipping. That's tied with our mention from last November, a low today by $130, and tied with the best price we've seen for a 15.6" laptop with an i7 CPU, 512GB SSD, and 16GB RAM.