Both sentences should have the word 'enough' after 'smart'. Then they will mean 'some robots are so smart, they can do the same things as people'. The 'do' at the end is optional; if it's not there, it is implied or understood.

It's different.第一句侧重机器人和人做的事相同，第二句侧重机器人做事和人一样敏捷。