The Whistle Activity Monitor is an on-collar device that measures your pet's activities, including walks, play, and rest. This gives you a new perspective on day-to-day behavior and long-term health trends.

If you're wondering about our approach, Whistle is supported by veterinary research around activity and behavior as a measure of pet health from leading academic institutions such as the University of California at Davis, North Carolina State University, and the University of Pennsylvania. We work closely with the veterinary community to bring new data from this research to a much broader population of pets.

Compared to other pet activity monitoring systems, the Whistle system has a lot of benefits:

  • Lightweight, modern design—The device is designed specifically for a pet's active lifestyle, and is durable and water-resistant.
  • Long battery life—The battery is designed to have a long life and can be quickly recharged.
  • Mobile apps—You can use the Whistle app to check in from your mobile device, share memorable moments with family and friends, and make more informed decisions with your veterinarian.


We also offer other pet products, including Whistle GPS and Tagg GPS Plus.