When you visit your doctor’s office, a blood pressure test is often the first thing you'll face. High blood pressure means an increased risk of heart failure, heart attack, or stroke, which are among the leading causes of death in the US, and nearly half of the adults in the country have high blood pressure. Samsung has rudimentary support for blood pressure monitoring on its Galaxy Watch, but the feature isn't available in the US and has caveats. Enter: Withings’ BPM Vision, the update to the no-frills BPM Connect ($100). This is important for a blood pressure monitor because everything affects your blood pressure, including whether your legs are crossed and if you’re sitting up or leaning back.