Not to be mean but the quality of the tablet/phone/whatever you're using is pretty bad. You don't need a "good" video camera to get good quality. When I make videos that need a camera I just use a cheap 120$ Canon digital camera. My family likes to take pictures so we have it anyways, and if you have good lighting it takes great quality videos. For only 120$ (which is cheap as some cameras can be 500$+) it's definitely a good thing to invest in if you plan on running a YouTube channel.
What model is that $120 Canon digital camera.