Refurb4Less via eBay offers the refurbished 5-lb. Asus Intel Skylake Core i7 2.6GHz 15.6" 4K Touchscreen Laptop in Silver for $929.99 with free shipping. That's $600 under the lowest price we could find for a new unit. It features an Intel Core i7-6700HQ 2.6GHz Skylake quad-core processor, 15.6" 3840x2160 (4K, 2160p) touchscreen LCD, 16GB RAM, 512GB SSD, Nvidia GeForce GTX 960M 4GB video card, and Windows 10. (It doesn't have an optical drive.)
Note: A 90-day warranty applies, but it's unclear who covers it.