Now you can track your pets (even the smaller ones) easily with the Whistle 3 Pet Tracker. This new version is smaller in size and better in functionality. It allows you to track your pets’ activity throughout the day from your smartphone. In addition, you will also be able to track your pets’ location in case they run away. The tracker serves as a simple pet collar so that your dog is able to wear it comfortably. You can track your pet anywhere in the US with this collar. The latest version also promises faster location tracking as well as improved geo-fencing. So, you will be able to create multiple safe areas for your pet. The pet collar is smaller in size so you can use it for smaller pets as well. Additionally, there is the mobile app with drastic improvements and better features.