A6400 vs A6100

I was wondering if it'd be ok to cheap out here, I wanna get the A6100 because its like 630$ used, so I can get some good lenses- but I don't know if I'd be missing out on a lot if I decide to get a6100, I just want to do photography. I'm also switching from a bridge camera, the Canon Powershot 20xs is, which I used to learn the basics and make the most out off; I'm not looking turn my hobby into something pro, I just wanna take pics and edit them.