No one wants it, yet it's the body's way of getting your attention when something is wrong. You're probably sufficiently in tune with your body to know when the pain is just a bother, perhaps the result of moving furniture a day or two before or eating that third enchilada.
Wrist Blood Pressure Monitors use the radial artery to measure blood pressure instead of the more commonly used brachial artery. The key is to place the monitor on your wrist properly, just above the wrist bone and then to hold your wrist up level with or above your heart.
Some people may have problems taking a blood pressure measurement from their upper arm. For instance, they may have a very large arm or find the BP measurements painful. We noticed a jump in blood pressure readings when comparing the measurements of the iHealth wrist monitor to the upper arm monitor. Helpfully, though, the device has an inbuilt sensor that allows the app to guide the user into angling their arm into the correct position.