Meet the Withings BPM Connect: a WiFi smart pressure monitor that provides you with systolic and diastolic plus heart rate. It has a LED screen and gives you immediate color-coded feedback. The data can be synced via Bluetooth to your phone. The BPM Connect has unlimited data storage and 6 months battery life.
You will be able to view your full history on your phone. BPM Connect is a FDA-cleared medical device. Costs under $90 at this time.