A fitness bike is more tuned to exercising your muscles by positioning your body in a certain way to maximize calorie burning. An urban bike has more comfort features for heavy use (especially if you live in the city, and use your bike frequently)......
I think those are cruisers or comfort bikes.. Like these: Comfort: Cruiser: Hope this helps.
They are usually have, multi-speed, soft seats, wider road tires, upright riding position raised handle bars no suspension. They would be great for shorter rides and an occassional long one too, going around the neighborhood, to the store. They are p...