Unforget a bluetooth device

I had trouble finding out how to reconnect a device after I told my phone to "Forget this device". Information on the internet said to reset my phone, but that seemed a little extreme. I was trying to reconnect a Fitbit Charge 2. The Fitbit support chat told me to reset the Fitbit and that seemed to fix the problem. Just offering up the information because I couldn't find the answer when I looked for it. So try resetting the device and the phone may pick it up again.