If you’re trying to keep an eye on your blood pressure, Amazon has two different Omron models to choose from, each within a few bucks of the best price we’ve seen.

The Omron 10 Series monitor has a 4.3 star review average on over 5,000 reviews, and includes both a wireless monitor that can store your last 100 readings, and Bluetooth connectivity so you can store unlimited readings on your smartphone (including Apple HealthKit).

The Omron 7 Series has everything the 10 Series has (with an added 20 readings), but it’s also made to fit the wrist instead of the upper arm.