<p>A better, more convenient way to track your valuables without the bulk.</p> <p>The post <a href="https://www.popsci.com/sponsored-content/trackable-keysmart-smartcard-works-with-apple-find-my-sponsored-card/">AirTags are out, these trackable SmartCards are in—and $40 off</a> appeared first on <a href="https://www.popsci.com">Popular Science</a>.</p>