Are you in a place where you can buy a hybrid Yaris? What is the difference between that and a Prius C? I used to think it was regrettable that Toyota wouldn't

Are you in a place where you can buy a hybrid Yaris? What is the difference between that and a Prius C? I used to think it was regrettable that Toyota wouldn't hybridize their cheapest most practical car in the US, but then I learned that the Prius C was the best selling car in Japan for a while, so I'm not sure whether we're missing out or not.