Chareidim are people who dress the most modestly in eretz yisroel. Example if you see a girl wearing a tzinus plain white shirt and blue Jean skirt that barely covers her knees on shabbos she is not chareidi, proboblg modern.
Also chareidim do not believe in Internet, if chas vashalom you have Internet you are kicked out of the chareidi world.
same with Tv,smart phones, and non- kosher anything and eating rabbinut