Use our Ratings. Pick a top-scoring model that has features that will make testing easier, such as the ability for more than one user to store readings.

Consider cost. You can sometimes get blood-pressure and blood-glucose monitors at a discount. Glucose test strips can cost as much as $1,400 a year if you test three times a day, so consider their cost when you buy a meter. Insurance does not usually cover blood-pressure monitors, but it might cover the cost of blood-glucose meters and supplies.

Check the fit. Make sure the blood-pressure monitor you choose has a cuff that fits your upper arm.