So I don't really speak French, but did he said it did or didn't work with sunglasses? He does hold it in front of him instead of just glancing down. I don't really want to unlock my phone if I just happen to glance at it "accidentally".. but I under If the screen is off it's not looking (or even on the glance screen).
It might be slower than iPhone though in at, you can pick the iPhone up off the table and while you bring it to reading view, your finger is unlocking it. So when it gets to view it's open. Here you have to bring it to view, look at it, and then it unlocks. So even if the "unlock" is faster, the actually unlock it might take longer. I don't see why they couldn't have done both since W10 supports both... And then give the user the option of using Windows Hello Iris scanner or finger print, both, neither. password, no password. etc.
Also, does anyone know how well this works in the dark? So if I'm in bed at night and want to browse my phone a bit, do I need to turn a light on to unlock with hello (I understand I can just put the PIN in...) or because it's IR it works in the dark? I don't really know much about these things.