Looks like a Bantam Cochin. I'd guess female at this point. If it's a male it will get a pink than red comb between 5-7 weeks of age. A female will have a yellow orange comb for a while longer.
This one I don't know the breed if it's a Bantam. Perhaps a game bird. It resembles a cuckoo Marans but I don't believe those come in bantam. It looks to be well feathered. This one has what's called hard feathering and the Cochin has what's called soft feathering. So they won't look the same. This one looks more feathered than the Cochin does to me at this point.