MeatStick 4 and MeatStick Chef

The MeatStick 4 / Chef First Time Set Up TutorialHow to set up my Stick?Why is my Stick not connecting or not found in the App?How accurate are the sensors of the MeatStick 4 and MeatStick Chef?How do I turn off my Stick?How do I charge my Stick?How long does the Stick need to be charged?