Non-replaceable battery If you’ve ever found yourself searching for your remote or your child's favorite toy, the Tile Sticker ($39.99 for a two-pack) is for you. This tiny and low-cost tracker affixes to just about any non-porous surface and has a battery that will last for years. However, its limited range and spotty connectivity mean it's best suited for inexpensive items that you're most likely to misplace in your car or home. For just a few more dollars per tracker, go with the capable Tile Mate, or upgrade to the Tile Pro, our Editors' Choice for Android-compatible trackers; both can be stuck onto objects with adhesive pads that Tile sells separately. If you have an iPhone, the Apple AirTag is your best bet.