While there's no such thing as a sure bet in consumer electronics, all of the suggestions in this gift guide meet the same essential criterion: If someone gave it to us, we would be filled with holiday cheer. Every device listed is something we've personally played with, and whose joyful functionality we can vouch for. More importantly, though, these products are designed with longevity in mind. Both the expensive picks and the affordable options should bring tidings of joy for years to come. That's the best anyone can hope for in a gadget, whether you're giving it to someone else, or jealously hoarding it for yourself.