As to GPS collars, I have tried the TAGG collar when it came out...it's way too bulky for the average cat, even the average SV. Nina is a large F1, but she kept removing it going through the pet door to our enclosure.
One point to remember is that unlike dogs, cats NEED to have a breakaway collar to prevent them hanging themselves from a branch or something they are jumping or climbing over. Thus, the potential is for a cat to lose that tracking device fast once outside.
I used to have collars and tags on my cats (before they decided removing them from each other was a great game) but the couple i had that went AWOL came back without their collars. They'd lost them somewhere along the adventure..
One point to remember is that unlike dogs, cats NEED to have a breakaway collar to prevent them hanging themselves from a branch or something they are jumping or climbing over. Thus, the potential is for a cat to lose that tracking device fast once outside.
I used to have collars and tags on my cats (before they decided removing them from each other was a great game) but the couple i had that went AWOL came back without their collars. They'd lost them somewhere along the adventure..