Moto Z with Hasselblad True Zoom Camera for $600 (no contract; unlocked)

As previously mentioned, the Moto Z cameraphone goes for $500 on its own, but if you want to buy it along with the Hasselblad 10X optical zoom camera-module, theya are bundled together for $600 at B&H Photo. This is an unlocked no-contract no-installments phone with a USA warranty.