Product Features Unlike most of the pet trackers in the market, Catlog is designed to look great on cats. The Catlog device weights only 9g (0.3oz) and uses only silent components as cats have sensitive hearing. Stress felt by cats is minimized. All Catlog Belts come with a breakaway buckle that comes apart when a certain force is applied to the Belt. You can be assured of your cat's safety even if their collar gets caught on anything. The Catlog Belt can be changed out easily. Choose a different color and material any time of the year and keep your cat looking stylish. *Please check the Catlog Amazon Store for Replacement Belt options. App Features and Experience Check in on Your Cat Anytime, Anywhere Catlog tracks 8 behaviors in real-time: Eating, Drinking, Walking, Running, Resting, Sleeping, Grooming and Vomit (coming soon). Your cat's latest status is at your fingertips, even when you're busy or away during the day. Easily Notice Changes in Your Cat With the accumulated behavioral data, changes in your beloved cat are visualized. For example, an increase in grooming time may mean he/she is under stress. Subtle changes that are difficult to spot with our eyes are now obvious with Catlog. Notice Signs of Illness in Your Cat Earlier Cats don't use words to communicate discomfort, but Catlog App monitors subtle signs like energy loss and alerts you to take prompt actions before they become real issues. With the data, communicating with vets also becomes easier.