Please excuse my ignorance. Does the Arlo system require one to have something like a SimpliSafe system too?Arlo Ultra 4k is a good system but it is more expensive. The main thing I like about the 4k is that it actually provides useful info. The 4k allows you to read a license plate or identify a person's face. The other systems are good if you just want to know "someone" was there or there was "a vehicle" on the property.