There's one in every family: The uber geek who pretty much has it all when it comes to tech basics. They don't need a laptop or a fancy TV. But don't worry, there's always some gap in their collection of gadgets that you can easily fill. And remember, the more niche the product, the better gift it is for these folks.

You could get them started on building out their smart home with a lock like August or Kevo. Or maybe they need a central hub to control their sprawling network of connected goods from, like an Amazon Echo Dot. If the nerd in your life is too young for a smart home, you can always pick them up a high-tech take on the paper airplane or a box of tinker toys like LittleBits, to get them start on their journey to become the next great inventor.

For our full list of recommendations in all categories, don't forget to stop by our main Holiday Gift Guide hub.