Cats could also use smart wearables. Take Pawtrack for instance: this is a cat tracking collar that lets you know where your cat is and has been, so you don’t have to worry. It weighs only 50g and lets you follow your pet live. The collar is GPRS and WiFi enabled.
Pawtrack takes a location fix every 10 minutes and stores them on the collar. It has an accelerometer that detects when your cat is resting and turns off to conserve energy.
You can easily track the location of your pet over the Internet. The collar is safe for your pet and comes off when your pet is in trouble. Pawtrack also has GPS/ GLONASS antenna and GPRS to enable you to track your pet at all times. The product is on Kickstarter right now. You will need to buy a subscription plan after the first year if you would like to continue tracking your pet after the first year.