What are the differences between the original Apple AirTag and the second-generation AirTag? Tharon Green/CNET/Apple Apple is on a tear releasing new products this year, from the iPhone 17E to the MacBook Neo , but the AirTag could make the biggest impact — if only in the number of lost keys, bags and other items it helps recover. The diminutive tracker got a  second-generation  refresh, but is it worth buying the new model when the first-generation tags work just fine?  Despite the physical resemblance, this new AirTag, unofficially dubbed “AirTag 2” by Apple, includes key improvements in range, sound and functionality you’ll want to understand before ordering another set. Learn All About Apple AirTags How much do AirTags cost? The retail price of a second-generation AirTag is $29 or $99 for a pack of four.…