The Smart has 3 qualities:
-It Gives the exact speed via GPS, and (but) provides unreliable reference to 100% of the speed limit. Incidentally it indicates the loss of points incurred license.
-It Serves as my reminder for fixed radars
-Button Call-out
As against the other indications are random, they depend on your area because the number of adherent outstanding differs from one city to another. I do not see any difference on the dangers indicated the same button for a radar or accident. Too large areas, but the fault is for the legislature.
Smart as CI enable emergency alert. The battery life is approaching 8 hours. I do not like grip on the remote control, you often have to press to act more with a multifunction steering wheel it is not his place.
The difference between CI and SMART corresponds to geographical areas (indicating pathways); cartography France, Luxembourg for the first and for the second Europe. As against the speed cameras are always indicated.
Personally I do not watch my speedometer, but only the indication of the Inforad GPS. This must be seen as a driving aid, true airspeed, reminder of the limitations with reserves above. It is not the secret weapon to override peacefully speed limits. Worse sound reminders after the cameras are annoying, thankfully just 2 pressure on the rabbit symbol to stop this mess. If you slow down before leaving the zone you have to start.
Untested telephony functions.
Note C .... in the emergence of a new model that adds camera function with automatic memory of the last 10 minutes. This means becomes very interesting in case of accident to determine liability. It adds a vehicle alert against the direction and length of corks. Hopefully INFORAD quickly inspires these major improvements.