The Whistle Activity Monitor is an on-collar device that keeps track of what your dog has been up to all day long while you’re busy. It measures everything from walk and play time to rest periods. Not only will it collect all this data 24/7, but also allows you to check in remotely on your phone using an app. You can get up update anytime, from anywhere and know exactly what Fido has been doing. If your dog has been sleeping too much, you’ll know something needs to be done. If you’re jealous of who Fido is seeing while you’re gone, the Whistle will keep a close eye and inform you about the secret rendezvous. In short, Fido’s life is now an open book and nothing is hidden from you.