It should. The interior dimensions are 3.625"wide, 6.75" long and 0.50"deep. The iphone 11 pro max is listed as 6.22 x3.06x0.32 inches. Those measurements i took are actually a little short of the true dimensions, but you'll will need a little maneuvering area to place and pickup the phone from the plastic film surface inside that must remain in place for the phonesoap to work. It is a nice little device. I leave it unplugged until I need it, usually after I come home after being out all day. Takes only 10 minutes. You place the phone inside, in standby mode, close the lid, plug it in, and a soft green lightening bolt glows from the top lid for 10 minutes and you're done. I have no proof that it works, but it gives a piece of mind, hoping that it does.