Lively is a Personal emergency response system for seniors. Lively, a company founded in 2012 that uses a combination of sensors and a wearable smartwatch to monitor seniors in their home, is just one of several companies bringing design smarts to a demographic whose most famous wearable tech is built for people who want to call authorities when they’ve fallen and can’t get up. New entrants include health care monitoring companies such as Tapestry, A TABLET app that lets seniors connect with family far away; MedCoach, a medication reminder app; and HealthSpot, a primary care service that lets doctors virtually meet with patients.