Speed Camera Detector + Sat Nav, Best Device?

Hi Peeps,
Looking for a Speed Camera Detector and a Sat Nav device all in one.

Any ideas which one to go for?

Needs to be reliable and have all the camera's available etc.

Needs to be preety compact.
Will be used everytime I am in the car.

Tried Tom Tom, no good, need to have one that has all camera's and one that I can update on a regular basis.

All help appriciated.

Thanks.

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