Woot offers the Lenovo ThinkPad X1 12" 128GB Windows Tablet for $549.99. Plus, Prime members receive free shipping. That's a $50 drop from January and the lowest price we've seen. (It's the best deal now by $110.) It functions as a laptop via a detachable keyboard and features an Intel Core M5-6Y57 Skylake 1.1GHz dual-core processor, 12" 2160x1440 IPS LED-backlit touchscreen LCD, 4GB RAM, 128GB SSD, USB Type-C, microSD card slot, 2-cell battery, active pen, and Windows 10 Pro 64-bit. Deal ends March 30.