Techradar has performed a comparative test between airtags and tile to show which of the two trackers allows to find more easily a bunch of keys. In the test, the keys and trackers were hidden behind a road signal in a medium-sized busy area about 1 mile away from the house. After activating the lost mode, it takes about 30 minutes to send a notification of finding to the owner.
After a day, a total of 13 notifications came to the owner and each of them reported the AirTag in a different location on the map. The not too precise position is due to the iPhone of the passing person. As for the tile, however, it was necessary to wait 12 hours before receiving a single notification of finding.
The position detected by the tile however was more precise. Airtag to date is probably the best tracker to buy in the relationship between quality and price.