If released to the public, Blue Steel could raise privacy concerns. A key element of current smart speakers and displays is that they only pay attention to what you’re saying after they hear the wake word. Relying upon proximity detection alone increases the risk of the devices hearing something they’re not supposed to, at the expense of your privacy. That said, “Blue Steel” could make for a useful optional feature for some. Having to repeatedly say “Hey Google” or “Ok Google” before every voice command can be a pain, and this potentially makes accessing information you need far quicker.