Can a drug-detection dog beat Apple's U1 chip? Attach a $29 Apple AirTag to your stuff and you can use your iPhone to locate it when it goes missing. WSJ’s Joanna Stern put the new gadget up against a drug-detection dog and other lost-item trackers, like the Tile Pro, in a series of indoor and outdoor challenges. Photo illustration: Laura Porat for The Wall Street Journal Personal Technology With Joanna Stern Technology is overwhelming and making decisions about what gadget to buy is harder than ever. WSJ personal tech columnist Joanna Stern makes it all a bit easier in her lively and informative videos. More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com/ Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.facebook.com/pg/wsj/videos/ On Twitter: https://twitter.com/WSJ On Snapchat: https://on.wsj.com/2ratjSM 0:00 - 1:18 Introduction 1:19 - 3:36 Challenge 1 3:37 - 5:05 Challenge 2 5:06 - 6:53 Challenge 3 #WSJ #Apple #AirTags