Buying gifts for tech geeks is fun: There are always so many new things to choose from! But if you’re not a technophile, choosing a useful tech gift for your tech-savvy loved ones can be a challenge. Separating the truly cool tech products from the ones that are just going to wind up gathering dust can get confusing. So we did the legwork for you, trying out the latest and getting past all the literal bells and whistles to see which gifts techies will love.