But one gadget that truly sets the bar high is a drone with a camera, and Walmart just marked this one down by nearly half. The Keyahappy E88 Evo Camera Drone is on sale for just $30 at Walmart ...

Walmart told CNBC in an email that the retailer has completed more than 120,000 drone deliveries to homes ... Both the P2 Zip and the delivery zip use cameras, other sensors and Nvidia chips ...

It just set up a new deal with a drone operator startup, and is also moving to take better advantage of the cloud. All of this together got Walmart investors interested, and shares gained ...