More new personal safety wearable devices are coming to market , with five companies in the last six years announcing products with the intent to send emergency alerts to friends , relatives , ​and the police . However , as multi - function wearables , like Pebble , Android Wear , Fitbit and Apple , begin to include emergency alerts , single - use devices have a limited lifespan .
More emergency personal safety wearable devices are coming to market, with five companies in the last six months announcing wearables with the capability to send emergency alerts to friends, family, ​and the police. However, as multi-function wearables, like Pebble, Android Wear, Fitbit and Apple, begin to include emergency alerts, single-use devices have a limited lifespan.