Here is another smart collar that lets you keep an eye on your pet. KYON is thin but comes with GPS built-in. It also has a LED display that lets you show messages and communicate with your pet. The KYON Collar lets you set up safe zones for your pets. Its 3D GPS tracking lets you locate your pet in 3-axis.
This smart collar also has a temperature sensor to monitor surrounding temperature in real-time. There is also a water sensor. The KYON Collar can stop your dog from barking. The product is getting funded on Kickstarter.