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Don’t let your pet become one of the 10 million dogs and cats lost each year. A tracker lets you know exactly where your pet is, even if somehow it has crossed the country. GPS units that attach to your pet’s collar transmit coordinates to your phone, letting you know where your pet is in real time—and where it has been, which will help you figure out how it got there. Some units also function as fitness trackers, and many (but not all) require subscriptions, which means you’ll have to pay a small monthly fee. Here’s a guide to choosing the best pet tracker for your best friend.

Endurance Winner

Boasting best-in-class power life, it tells you where your dog or cat is, measures its activity levels, can call a vet, and it’s illuminated, too. Whistle

Keeping tabs on your pet is any tracker’s primary purpose, but some trackers can do so much more to help keep your dog healthy. Those more sophisticated trackers show you where your dog has traveled and, like a fitness tracker, it can tell you how far it has walked or run in a day, how many calories it has burned, and suggest how much food your pet needs. It can even alert you to nervous or destructive behaviors like licking and scratching.

Boundary Setter

This do-all device keeps track of your animal in over 150 countries. Tractive

Even the best-behaved pets can be tempted to leave their yards. Trackers have a feature that lets you draw a geofence in an area. When your pet crosses the virtual fence line, you receive a phone alert within a few minutes. Most are quite precise, allowing you to draw around property lines or the confines of your yard. Some let you set several “safe places’’ or will store virtual fences to use as you go from place to place.


This unit is all you need to keep tabs on your pup when he or she is running free. PetFon

The best way to keep your pet found is not to let it roam free. Walking off-leash (where legal) is still risky if a dog sees or smells something it can’t resist and takes off. Most lost dogs are found within 12 hours, but you should still be sure your tracker is fully charged before walks. Not only will the tracker show you where your dog has gone, but many will let you share the information to other phones as you search. If the battery does die, the pet’s last known location will be shown on the app.