Fitbit CEO and Founders James Park and Eric Friedman, please add the ability to hold down the side button for a few seconds to alert 911 emergency respondents.

I was recently woken up by men standing next to my bed in the early morning hours. They had a gun(s) telling us to put our hands behind our backs, they zip tied our hands together. They took my phone before I knew what was going on. I wouldn't have had time to grab it even if they hadn't took it. No one took my fitbit charge 2 off of me. If it had the capability to signal 911 with a silent alarm the cops could have been here sooner and caught them. Thankfully my wife was able to break the ties and call 911. They saw her phone ringing, hit her in the head and took off. We are very lucky they ran away and didn't hurt us more then a bump on her head. Most likely they will never be caught.

I think it would also be great for people walking to and from work, at work, on college campuses, out running, with health issues, or the elderly. I know I personally wouldn't mind paying a small fee monthly to have that feature.