tlkiwi is right. Your gearing is a function of the size of the wheels, the chainrings, and the rear cluster. It is possible to have the same gearing on a bike with 650c wheels as with 700c wheels.

As an example, I have 3 bikes - a diamond-framed touring bike with 700c wheels, a Bike Friday Air Glide set up as a touring bike with 406 (20") wheels, and a Bike Friday Pocket Rocket set up as a road bike with 451 (20") wheels. The two touring bikes have identical gearing, despite the different wheel sizes. The other difference between the two bikes is the size of the chain rings. I have much larger rings on the little-wheeled bike. And my little-wheeled road bike (deliberately) has higher gearing than both of the touring bikes.

That said, I still can't answer your question about 650 vs. 700 because I have no idea how the manufacturer configured the gearing. It is very possible that the gearing is the same - but that would depend on either the chainrings or the cluster being a different size since the wheels are already different.