GPS collars are devices worn around the necks of animals, typically pets like dogs and cats, to track their location using Global Positioning System technology. These collars allow pet owners to monitor their animals' movements in real-time, ensuring their safety and helping to locate them if they wander off. In addition to tracking, some GPS collars come with features like activity monitoring, which helps owners understand their pets' exercise levels. This information can be useful for maintaining a healthy lifestyle for pets and can alert owners to any unusual behavior or inactivity that may indicate health issues.