Fitbit is like that loud guy at the party who yells, “Women should be able to feel safe at all times!” and then puts his arm around your shoulder and tries to whisper something in your ear about how safe he can make you feel. 

Take a look: 

Men: Chase after women! Strap on our device and run right behind her! Make her hear your footsteps dogging hers! Do the same thing the next day and the day after that, so that she knows she’s the one you’ve chosen, the one you’re targeting. She's special to you. Chase her till she admits you're pretty awesome, too. 
Women: We know you can kick his ass, because you’ve been running with our product longer. Flash him a darling smile and then pick up the pace, leaving him panting for more. 

 In reality, this goes like this: “Hello, 911? There’s a guy chasing me. I think he’s the one who’s been following me all week. No, he didn’t touch me. Did he have to? No, I already left him in the dust. No, I can’t really describe him because I WAS FLEEING HIM. Oh, fine. Okay. Yeah, I’ll just change my outfit and change my routine and go a different direction next time. Thanks, anyway.”