Hi all, got my iPhone XS the other day and I am loving it, but I was cleaning my phone last night and noticed this. What exactly is it? I've never seen it before on any iPhone in the past, I thought the proximity sensor was the whole bar above the speaker, but this seems separate? Not saying there's anything wrong with my phone, just curious. Coming from an iPhone 8, its just a little black dot, but I do understand there are more sensors in the X. Cheers.