All the cool new gadgets at CES 2016 - Onagofly Nano Drone

Onagofly Nano Drone

Last year's Zano nano drone never made it off the ground, so here's hoping Onagofly's 5-inch/125mm-square follow-me drone has better luck with liftoff. It's already had an Indiegogo campaign funded seven times over, and boasts really useful features like obstacle avoidance and live streaming, for $300 (£200 or AU$415).