WWII a bit more expensive than Lunch Box.
The whole design of WWII is more complicated then lunch box, like sterring and shocks. The overall performance WWII is much better.
The design of Lunch box is simple, therefore is a bit cheaper.
WWII is design for willy action, therefore, its easy to flip.
For fun running, both can run on the beach or into the water if you did the waterproof.
Both are nice!!