TL;DR Google’s new Health Guardian turns Pixel Watch health data into more useful insights, analyzing signals in the background. That’s the thinking behind Health Guardian, a collection of new health features arriving this fall. Take Blood Pressure Trends, which is coming to the Pixel Watch 3, Watch 4, and Watch 5, as well as compatible Fitbit devices, this fall. It’s intended for general wellness, and it will arrive on the Pixel Watch 3, Watch 4, Watch 5, and compatible Fitbit devices this fall. That combination of long-term insights and more proactive monitoring is what could make Health Guardian one of the Pixel Watch’s more meaningful health upgrades yet.