Simple answer, Sawstop is the only one with that technology and is a great saw it has all the other benifets as well now even including a overhead guard with close to 100% dust collection when used. Don't forget about our lungs.
I got it because I have been using a table saw 20 years with no problems but you never know I am not 100% all the time and my fathor uses it and in his old age has gotten quite jerky in his movements and likes to take short cuts, I can see him doing some thign stupid.
If you don't wat a saw stop and have the room the slider are really nice also and alot safer than us table saws.