However, the tracker has a few notable limitations, most notably the total lack of Android compatibility and the absence of Ultra-Wideband technology. Because it does not contain an Apple U-series chip, it cannot provide precision finding, meaning you will not get on-screen directional arrows guiding you to the exact inch where an item is hidden. The tracker is available in two distinct form factors to fit different everyday carry needs. The standard puck-shaped tag includes a built-in keychain hole so you do not need to buy an extra case, while the ultra-thin Slim Card variation measures just under two millimeters thick to slip easily into credit card slots and utilizes a rechargeable magnetic battery. Setup is straightforward, requiring you to hold the physical power button for two seconds and then pair it through the items tab in your native Apple Find My application.