How is bike sharing different from bike rental?

Bike rental is generally intended for longer term use – several hours or days at a time – like traditional car rental. Bike sharing, on the other hand, is more similar to a cab ride – short, point-to-point trips across town. Bikes in a bike-share system are available when you need them and safe and secure when you don’t! You can pick one up and return it at any bike share station, anytime.