After a new round of testing, the Omron Platinum BP5450 is now our top pick. A dependable home blood-pressure monitor can be a vital health-management tool for people with hypertension.

but the Huawei D2 smartwatch with built-in blood pressure monitor changed all of that. It's not every day that I try out a smartwatch that wins me over within minutes of putting it on, but the D2 ...