Without wearing my garmin heartbeat shows up

6931959 said:

its this possible?

Of course, if the sensors are somehow exposed to pulsating light - either from outside or reflected from the surface on which the watch is lying.

So the heartbeat after I take out its not old information? Its just maybe if they had something closed or lighting? 

As soon I take off not supposed to have data?

After you take off the watch, look at the sensor LEDs. If they don’t blink, it means I don’t feel a pulse. If they blink, it means they’re measuring something – that’s it.