We were Owlet Smart Sock users, but our daughter was getting to the age wear she would pull the sock off if she didn't have footed pajamas on. This would cause false alarms. With Smart Beat, we don't have to attach anything to our daughter or insert anything to the mattress. Everything is monitored through the camera. It's been so great to use Smart Beat and have that extra peace of mind that our daughter is okay. Definitely worth the investment as it will never outgrow your child like the sock does.