Maria Diaz/ZDNET Follow ZDNET:  Add us as a preferred source  on Google. Deal details: Apple's AirTag (Gen 1) 4-Pack is on sale for $60 (save $39) at Best Buy.  A few weeks back, Apple launched a refresh to its tiniest gadget -- the AirTag. The flagship tracker hadn't been updated since its release, so the launch of the Gen 2 was a needed facelift.  Since its 2021 debut, Apple's original Bluetooth tracker has been used to monitor the location of all kinds of devices. People use the device to  track their luggage  through an airport, as well as their keys, bags, wallets, and other valuable items that are commonly misplaced.  The Gen 2 AirTags notably received a louder speaker and an expanded location range. These AirTags also use the same Ultra Wideband chip as the iPhone 17 lineup, the iPhone Air, and the Watch Ultra 3 and Watch Series 11.  Also:   Apple's new AirTag 2 is better in almost every way - for the same price And all those upgrades are great.…