Replying to Video Camera Advice

I'm thinking about make season edits (Summer and Winter) on my inactive YouTube channel. Not for publicity, I'm not good, but more for myself to look back on. I have some cash to spend and was wondering what type of camera I should get. I am collecting footage for my trampoline/summer edit on my iPhone but the quality is shit when put on a computer. My price range stops at 500, but it all depends on the camera itself. I don't want a huge camera to lug around on the slopes. For the winter the camera needs to be able to resist some snow. Please help a skier out and give some suggestions. Other advice for the edits like editing software or anything else is much appreciated.