The 9500i and IX both have GPS. The IX comes preloaded with red light cameras, speed cameras, and speed traps preloaded. The I does not. The I and IX will learn automatic doors after 3 passes, or you can just silence them the first time by pushing the silent button 3x.
Your mileage may vary but in terms of them both giving me warning they were both hung from Blend Mounts in my Caddilac and both gave me the same amont of distance to slow down. Sometime too much as they get a signal from so far away it takes a mile to even see the cop.