To answer your question I think we have to determine why it is that we have rights in the first place. Is it because we are sentient beings or is it simply because we are human. Well human rights are defined as rights which everyone is entitled to BY VIRTUE OF BEING HUMAN. So if it isn't human, then it shouldn't have any rights if if you ask me, I mean would you give bigsby or Google assistant or your cellphone camera which has AI features rights?? No you wouldn't.
There's a reason why in just about every movie about AI, the robots rise up and slaughter the humans, and that's because human beings become sentimental and start attaching longing qualities to inanimate objects. Just because it can talk back to you doesn't make it real, just because it may seem sentient doesn't mean it's truly alive, so no, I don't support giving it any legal rights, I don't even support making any sentient robots in the first place. I think you should check out the movie "Extinction", you'll get what I'm trying to say.
I think it was Fay Lapka, one of my favourite writers as a child who said that "Fiction is not just a product of our imagination, it's a prediction of what could happen". Anybody working on creating sentient robots like Sophia should probably thread carefully and be smart about whatever you're building, humanity is at the point where science and science-fiction are becoming dangerously close.