Meaning
A solid circle, usually on a square button, the record control on cameras and recorders. It means recording has started or is about to.
Creators use it to announce filming, voice notes and behind-the-scenes clips, and friends use it to say “I’m keeping this as evidence”: “⏺️ Recording the rehearsal so nobody can deny it” For a live broadcast many people prefer 🔴, and 🎥 adds a camera touch.