For people looking for a small high-end phone, there's the Xperia Z5 Compact and that's it. Sony's latest version comes with a 4.6-inch screen, a Snapdragon 820, a 23MP camera, and plenty of reason for people who like hand-sized phones to fall in love.As usual, small size does not mean small price. The Z5 Compact typically costs half a grand. But right this moment, Amazon is offering the handset for $100 off. That brings the price down to $399.99.The Z5 Compact is available from Amazon in black or white. This is the US model sold with a warranty. It only works with GSM carriers, so don't try picking one up if you're on Sprint or Verizon.The device is Prime eligible, so shipping should be fast. Hop on the deal while you can.