For the tech-obsessed, the holidays are a magical time. Highly anticipated gadgets are released just in time to make it under the Christmas tree, while popular electronics are given the joy of a significant holiday-themed discount. For those who are wondering what to get the person who always seems to have the latest version of every device, there are still plenty of under-the-radar options for those unapologetic techies, like a smart bottle that automatically filters tap water, a self-heating mug, and a hand-held mini humidifier that is sure to be a hit with co-workers.