The Whistle GPS tracker weighs 1.2 ounces and is designed to be used on animals that weigh at least 10 pounds or more.

The tracker can be used on dogs, cats, horses and other animals, but Whistle does not support using its device on anything other than pets.


To find out if you can use a Tagg GPS Plus on cats or other small pets, click here. To find out if you can use a Whistle Activity Monitor on similar pets, click here.