Fitbit Support on Twitter: "@funtoretire Was it on the clock face when you saw the 3 dots on the side of the heart rate symbol, or was it on the Today app?
Fitbit Symbols Meaning: What do the Fitbit icons mean? – Smart Body Touch
Solved: What does this symbol mean in Charge 4? - Fitbit Community
Fitbit Icons and Meanings
Fitbit Charge 4 (and Charge 3) tips and features: How to use your new tracker
What is this symbol on Versa 2? It looks like the "distance" icon but it isn't. : r/fitbit
What is this symbol on charge 3? : r/fitbit
Solved: What do the symbols on the Charge HR mean? - Page 2 - Fitbit Community