I thought the GE and Zooz may be made by same company as they look very similar. But the action of the switch is a little different. The GE has a better feel to it. It kinda clicks when you push it up or down, giving a tactile feel that the button was pressed. Also the GE contains a white jumper cable required to install. The GE also contains short screws to screw the plate to. If you re-use long screws, they actually go into the body of the switch and prevent it from working. But at a 50% increase in price for the GE ($38) over the Zooz ($25), I can live with the Zooz and get a bunch more. 
Also the Zooz is Z-Wave Plus which is nice.