Hi I am new to this.. but I have been looking for a wrist monitor for when I excercise to monitor blood pressure.. I think that is key ... I have been learning that blood pressure and heart rate are two different things.. i am still learning ... if anyone has more info please share... I know there are different sizes and different activities we can do; Example can I use my snow blower? My constipation puts lots of pressure and holding breath i feel it on my chest and admomen.. yet was told constipation won't affect it... I do my best not to strain but it is difficult... mixed info out there... Lets do our best... get monitored... live the best life we can now!!! Keep that stress down. I don't have high blood pressure nor clogged arteries... and am apprehensive on taking Metropol beta blocker... I need to research more on this drug. Good day!!