I don't have the 5 million but I do have the 7 million. I tried it for you, but I don't know how the front pockets compared between the two.
With the Apple case off it fits side to side but sticks out the top of the front pocket between 3/8 and 1/2". There is still mega engagement between the velcro on the flap and the bag so I see this as a reasonable fit.
With the Apple case on it fits like a champ. It goes all the way in with no protrusion out the top of the pocket and the velcro fully engages.
I would definitely go with this with the case on just for the extra piece of mind.
Steve