3 HeartWatch
Using just your Apple Watch, you can track your heart rate over time. HeartWatch can access and interpret that data. It can tell you your regular, waking, sedentary, and sleeping heart rate and provides explanations for each.
The in-app dashboard lets you monitor and compare your current heart rate to your average, minimum, and maximum rates. There’s also an activity tab to show how active you’ve been and how that activity affected your heart rate.
If you like to monitor your heart rate while running, you will love the included Apple Watch app. HeartWatch lets you start a Workout on your Apple Watch and displays a real-time, color-coded gauge of your heart rate as you run. The Apple Watch app also includes a complication that displays the latest reading on your watch face.