Flight Attendant reported flight crew transmitted on the PA System instead of the radio discussing a diversion due to loss of PFD/ND and Auto Pilot. The Flight Attendant reported Passengers were apprehensive and required reassurance. A diversion and precautionary landing were made.

Narrative

We were scheduled to fly from ZZZ to ZZZ1. With approximately 20 minutes left in the flight the Pilots lost function of some of their indicators as well as the Autopilot. In trying to communicate with ATC they accidentally spoke over the PA which raised concern with all of the passengers. Once the Captain had further information he announced that we would be diverting to ZZZ2 and would be landing in approximately 45 minutes. At this time I started a second beverage service and answered questions / eased concerns as best as possible.Approximately 20 minutes after this the Captain made another announcement stating we would now be diverting to ZZZ3 in order to have an easier time trying to get them to ZZZ1; but that we would most likely be deplaning. Once we got to ZZZ3 and a Supervisor came on board; we deplaned the passengers and asked them to remain in the boarding area until further information was available. Both the Captain and the First Officer were taken off the flight and I operated the flight from ZZZ3 to ZZZ1 with two new Pilots on a new aircraft.