Change the HR display to fewer decimal places

I like the idea of being able to have my heart rate displayed at all times. That's cool. What I don't need is my heart rate written out 4 decimal places. I'm fine with just knowing it's 89 beats/min. I don't need to know it's 89.4777 beats/min. We round Pi to less than that.

Plus, it takes up too much space on the screen, and if I make the size less than 20, it's to hard to read to be useful at a glance.