It's nice to see you around @Cheycarrier! Thanks for taking the time to troubleshooting this inconvenience with your heart rate readings, nice way to go!
As you may know, your heart rate may be affected by any a number of factors at any given moment. Movement, temperature, humidity, stress level, physical body position, caffeine intake, and medication use are just a few things that can affect your heart rate. Different medical conditions and medications can impact your heart rate as well.
Your resting heart rate is usually higher than your heart rate while you are asleep, so don’t be surprised if your resting heart rate is higher than the lowest number that you see in your heart rate graphs.
Your tracker can have difficulty finding a signal, typically due to the tracker's fit. For example, wearing your band tightly may constrict blood flow in your wrist and affect the signal. We recommend experimenting with how high you place the tracker on your wrist. When you're not exercising, wearing the tracker just above the wrist bone--as you would a watch--typically works fine. However, moving the tracker up a couple inches can be helpful during high-intensity exercises or exercises that cause you to bend your wrist frequently. Please double check our recommendations for wear and other tips shared by @SantiFitbit.
Note that on Fitbit Ionic, the heart-rate value appears gray if your watch is searching for a stronger reading.
Occasionally your device may have difficulty getting a strong signal. If you don't see your heart rate on your device, first make sure you are wearing it correctly. After a short wait, you should see your correct heart rate again. On Ionic, make sure the Heart Rate setting is On. For additional troubleshooting, see Why don't I see my heart rate on my Fitbit device?
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