The NexRing will measure your heart rate while you sleep and compare it to your non-active heart rate during the day. Studies show that a 10% dip in your sleeping heart rate shows signs of a good, restful sleep. 

The indepth sleep metric takes into account how restless you have been during your rest. The less restless you are, the better quality of sleep you receive and the better you will feel the next day.

The NexRing will measure your heart rate while you sleep and compare it to your non-active heart rate during the day. Studies show that a 10% dip in your sleeping heart rate shows signs of a good, restful sleep. 

Tracking variations in your nightly temperature can show if you are becoming ill before you start to feel the symptoms. A sudden rise in temperature picked up by the NexRing suggests you should take your temperature with a standard thermometer to confirm. Menstrual cycles will also increase and decrease your body temperature; this metric can help show how far along your cycle you are.

Your respiratory rate is how many breaths you take per minute. While sleeping, a typically healthy person will breathe between 12 and 20 times per minute. Of course, these numbers vary, and it’s more helpful to make sure that your respiratory rate remains stable over the long term, so tracking this metric can be quite useful. 

HRV reveals how your body responds to training and stress. Factors like age, health and fitness can affect your HRV. Generally speaking, a higher HRV depicts generally good health, around 120ms. A lower HRV can show high levels of stress from overtraining.