Image credit: Suzanne Kantra/Techlicious
Google started rolling out three new health-tracking tools to Pixel Watch 3, 4, and 5 through the Google Health app this week: blood pressure trend tracking, insulin resistance trend tracking, and a sleep breathing quality score. All will be included free of charge for Watch owners. Fitbit Air owners will get access to the blood pressure and insulin tools too, but only later this year with a Google Health Premium subscription.
These features are part of Health Guardian, which Google is clear to note is built for “general wellness and informational purposes only" and explicitly "not intended to diagnose, treat, cure, or prevent any medical condition." If you want numbers you can act on medically, you still need an over-the-counter blood pressure cuff, continuous glucose monitor, or pulse oximeter and a doctor.
What the watch can do is spot a pattern over time. Insulin resistance trends need a minimum of seven days of data in a month, with a report generated on the first of the following month. Blood pressure trends need at least fiIve consecutive days of wear in a week, on the same monthly schedule. Unlike Samsung's Galaxy Watch, which asks you to periodically calibrate its hypertension feature against a real blood pressure cuff, Google's version skips that calibration step and estimates hypertension risk purely from patterns in your heart and blood vessel data, which makes setup simpler but leaves the estimate unchecked against an actual cuff reading.
Sleep breathing quality works differently: instead of a monthly report, it shows up each morning alongside your regular sleep summary, using data collected overnight to flag signs that may be consistent with sleep apnea.
The most safety-critical piece is Breathing Emergency Detection, which is meant to automatically alert emergency services if your Pixel Watch detects a severe drop in blood oxygen while you sleep. This is not an FDA evaluated feature, so don’t rely on it in place of an FDA-cleared home pulse oximeter.
The practical case for turning Health Guardian features on is the monitoring between annual checkups. Someone with a family history of high blood pressure, or who's been told they're prediabetic, can wear the watch as usual and get a monthly nudge if their numbers are trending the wrong way, months before their next doctor's visit would have caught it. A trend like that can prompt someone to book an appointment sooner than waiting for symptoms would.
The Google Pixel Watch 5 is available in 41mm and 45mm sizes starting at $399.99, and the Fitbit Air costs $99.00. Google Health Premium costs $9.99 per month or $99 per year, and is included in Google AI Pro and Ultra plans.
