Looks like Airtag [1] is 31.9⌀x8 (6,393.8 mm3). the Tile Mate with removable battery is 35x35x6.2 (7,595 mm3) and Tile Sticker is 27⌀x7.3 (4,179.6 mm3). do you stick it to your keyring or use the larger Mate with hole on the keyring?
[1] https://support.apple.com/kb/SP840?viewlocale=en_US&locale=e...