Adorama via eBay offers the 2.9-lb. Toshiba Satellite Radius Intel Skylake Core i7 2.5GHz 12.5" 4K Ultra HD 2-in-1 Touchscreen Laptop in Carbon Gray, model no. P25W-C2300-4K, for $659.99 with free shipping. That's tied with yesterday's mention, since expired, and the lowest total price we could find by $340. It functions as a laptop or tablet and features an Intel Core i7-6500U 2.5GHz Skylake dual-core processor, 12.5" 3840x2160 (4K UHD 2160p) IPS LED-backlit touchscreen, 8GB RAM, 256GB SSD, DVD burner, 802.11ac wireless, Bluetooth 4.0, backlit keyboard, HDMI, USB 3.0, USB Type-C, 3-cell battery, and Windows 10 Home 64-bit.