Pet Pace is a new smart collar that closely monitors your dog's health every moment of his day and night. It costs $150 initially and the Pet Pace website states there is $180 yearly service fee. What it does is it constantly reads your dog's vital signs, body positioning and activities while being worn, and compares the results to your breed's standard. If something is not right, it sends the pet owner an alert, which then can be reviewed with your personal vet.. It is linked up to a base that stays near your home computer. It claims it is great for early illness detection and possible life saving treatment....and most of all peace of mind. I'm VERY interested, but am waiting to hear just how accurate and reliable it really is.