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Motion Detection is to detect movement outside the vehicle, say a shopping cart or car hits the vehicle while its parked. The G-Sensor is for the about of G force or impact of the collision and where the camera will automatically tag and save the video clip. The higher the G the higher the impact will have to be to initiate the tag or save point. I keep it all at 2G, so it tags anything even light bumps. Keep in mind bumps and pot holes in the road will initiate tags. even if the sensor is off you still can hit the save button on the back of the device after an accident happens ( to you or someone else). Hope this helps.
Sorry, there was a problem. Please try again later.The motion detection only works if the camera is on. Basically it pauses recording if it detects no motion and starts recording once motion is detected again. Mines normally shuts off when I'm at a stop light. I keep this off so it continuously records. The G-Sensor also only works if the camera is on. If triggered by a g-force exceeding the configured value then it will make the file currently being recorded read only. So if you have your video on loop, it's won't overwrite that recording. Hope this helps, good luck!
Sorry, there was a problem. Please try again later.I leave it turned off, because I found that motion detection means that it only records if motion is detected, and for some reason, moving traffic in front of my car isn't enough "motion" to trigger it. So I leave it set to record all the time and just save a file if I need to. The G-sensor, to the best of my understanding, triggers an automatic save of a recording if it detects a G-force event, like a collision, or slamming on the brakes, because the assumption is that it's an unplanned stop that might have resulted in an accident that you'll want video evidence of. The Difference between the options is the sensitivity in G-forces, so higher the number, the more abrupt the stop needs to be to trigger a save.
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