Ever since I got the Oura Ring, I’m able to track my deep sleep, heart rate variability and my resting heart rate in a more accurate fashion. Heart rate variability is the time interval between heartbeats. Typically, the higher the HRV, the better. The Oura ring is able to measure this by measuring your HRV while you are sleeping at the same time of the day, which makes the readings more accurate than other devices like the Apple watch or FitBit.
A lower resting heart rate during sleep is also associated with good recovery and health.
On normal days, my deep sleep, HRV and resting heart rate is relatively good and consistent and my Oura Ring’s readiness score is not too bad. It’s not optimal because my weeks vary in terms of training and other activities.