YHE's BP Doctor Smart Watch measures your blood pressure with an inflatable wrist band [Review]
Although my Apple Watch is capable of doing a lot of things, such as delivering messages and letting me reply to them, reporting on the weather, and controlling my music, it’s the many health functions I get the most from.
BP Doctor Smart Watch is much more affordable alternative to the Apple Watch that offers a wealth of similar health monitoring tricks, including recording your heart rate and blood oxygen levels, sleep time and HRV (Sleeping Heart Rate Variability), activity (outdoor walking, and indoor or outdoor running) and calories burned. It also has another impressive ability, and one that gives the device its name -- it can record your blood pressure.