That's why people have gravitated toward products like Apple AirTags and Life360's Tile trackers to keep tabs on their personal items. A single AirTag costs $29, and your basic Tile Mate is just $24.99. For an Apple AirTag, you can expect the battery to last more than a year. Apple only produces one kind of AirTag, which recently received a serious upgrade, making it easy to remember the estimated life of its battery. The Tile Pro's battery lasts for around one year, but the basic Tile Mate, Tile Slim, and Tile Sticker all have batteries that can last up to three years.