An electrochromic mirror includes an integrated internal plate frame with an electrochromic mirror subassembly adhered to its flat front surface, electrical components supported on a rear with the frame acting as a heat sink and EMI/RFI shield, and a back cover supported on the plate frame. The subassembly is uniformly supported across the front surface of the plate frame for good mirror impact resistance. The mirror is supported by an angularly adjustable ball-and-socket connection. In one embodiment, the ball is formed integrally on the plate frame. The present mirror is surprisingly thin, with at least 50% of the depth dimensions being less than about 3.0 centimeters.