Monitors your dog’s activity & sleep to give owner insights.FitBark’s a new way to motivate your dog to be healthy, explain changes in behavior, catch early signs of illness & make better decisions with your vet. At 8 grams it won’t bother 3 lbs Chihuahuas & 200 lbs Leonbergers. Works with collars not wider than 30 mm. The foundation for accurate minute-by-minute tracking that delights vet schools & research institutions worldwide. Syncs with the smartphone of any of your dog’s owners, followers & veterinarians. Sync requires an Internet connection.