You charge the tracker, put the collar on, and by dinner it's on the kitchen floor. If this is a weekly ritual in your house, the collar isn't broken - it's doing exactly what it was designed to do, just more often than you'd like.
It's supposed to come off sometimes
Almost every cat collar sold today, including GPS collars, uses a breakaway buckle. Under enough pressure - a paw caught while scratching, a branch, a game with another cat - the buckle releases so the cat can't be strangled. That safety feature is non-negotiable and not something to defeat with a stronger clip. The goal isn't to stop the collar from ever releasing; it's to stop it releasing during normal, everyday movement.
Five things that actually fix it
1. Get the sizing right, not just "loose enough"
The standard fit test is two fingers between collar and neck, flat, not squeezed in sideways. Looser than that and the collar has room to rotate and work itself over the head, especially on cats with a small head-to-neck ratio where there's barely any resistance to pull it past the ears.
2. Check it weekly, not once
Cats change - kittens grow, cats gain or lose weight, thick winter coats compress once shed. A collar that fit perfectly in spring can be loose by fall. A quick two-finger check every week catches this before the collar starts slipping.
3. Position it correctly
The collar should sit snug just behind the ears and jaw, not loose around the middle of the neck. A collar riding low has more neck circumference to work with and rotates more freely, which is often the real reason it keeps ending up by an ear or slipping off entirely.
4. Match the collar material to your cat's habits
A cat that grooms obsessively or rubs its face and neck on furniture will work a stiff or slick collar loose faster than one with a bit of texture and grip. Our cat GPS tracker collar uses a soft, lightweight nylon with a textured striped pattern rather than a smooth strap, specifically so it sits comfortably without your cat needing to fuss with it constantly.
5. Keep the tracker itself light
Every extra gram on a breakaway collar adds leverage that helps pull it loose during normal jumping and climbing. A bulky tracker case turns ordinary cat activity into repeated tug-tests on the buckle. The lighter and lower-profile the unit, the less it works against the collar.
When falling off is actually the collar's job
If your cat squeezes through a narrow gap - under a fence, behind an appliance - and the collar releases, that's the safety mechanism working as intended, not a design flaw to fight. This is also why a GPS collar is a locator tool, not a substitute for a microchip: a chip stays on your cat no matter what happens to the collar.
If you're testing fit and placement, our cat GPS collar works with both Apple Find My and Android tracking apps, so you can check location the moment you suspect it's come loose. See the rest of our GPS trackers and smart collars for other cat-sized options.