https://wccftech.com/airtags-teardown-shows-impressively-compact-design-with-no-wasted-space-compared-to-tile-mate/

Apple announced its latest accessory a while back at its Spring Loaded event. The AirTag is an item-tracking accessory that you can attach to any of your belonging and track its precise location with your iPhone. Now, iFixit has shared the teardown of the AirTags which shows how the compact accessory has wasted no space internally. In addition to this, the speaker layout has been well thought as well in order to allocate internals.

iFixit teardown of the AirTags has been compared to Samsung's Galaxy SmartTags and Tile Mate. Compared to the competition, Apple's AirTags are the smallest in terms of design. The reason for this is Apple's efficient use of internal space. The most spaced used is for the battery itself. One aspect where the AirTag lacks behind is the keyring hole.