I got this because of the size and ability to work with Find My for Apple. Setting it up and adding it to Find My was super easy. The tracker is slightly bigger than a quarter, and about as thick as two quarters stacked. It is very lightweight, and has the feel of good quality. The holder fits on the collar nice and snug, and the collar even has a nice feel to it.
I had Tile trackers in the past, and got one for my cat. He did not like it, I assume due to the size and shape. He would take his collar off frequently and made it clear he did not like the Tile device on his collar.
This little tracker is smaller, and even seems lighter in weight. It is round, and does. not seem to bother my cat while he wears it. It has only been a couple days, but with the Tile he had the collar off within the first few hours.
Tracking seems accurate on the Find My app. I have an iPad running iPadOS 26.5. It took a long time before any locations showed up, and by long time I mean about 5hrs. Either my cat is not getting close enough to anything that can read the tracker, or not a lot of people have Apple products in my area.
I gave 3 stars mainly because i am not happy with how much time it took to update the location. Hopefully it will update faster the more it is used.