"If your AirTag is nearby, your iPhone can lead you straight to it with Precision Finding.1 You‘ll see the distance to your AirTag and the direction to head in — all thanks to Ultra Wideband technology.
Precision Finding compatible with:
iPhone 11 Pro and iPhone 11 Pro Max
iPhone 12 and iPhone 12 mini
iPhone 12 Pro and iPhone 12 Pro Max"
As air tags are paired with your phone, can you set them up to bleep when you get more than a certain distance away from them. I often forget to take my phone with me, and I could easily carry an Air Tag on my belt,so I’m never parted from it.