Dad is your rock. He's the family IT guy, the authority on all things sci-fi, and the ultimate adventurer. So this holiday season, get him gadgets and gizmos that'll up his tech game. POPSUGAR Tech wrangled some trinkets for outdoorsmen, photographers, Einstein enthusiasts, and more. See all the fitness trackers, panoramic photo accessories, wireless speakers, and other doodads we handpicked for geek fathers in the gallery!