Electrochromic device and electronic equipment

The invention discloses an electrochromic device and electronic equipment. The electrochromic device comprises a first color changing area and at least one second color changing area, wherein the first color changing area and each second color changing area can change color independently and are used for changing color according to the same target transmittance at the same time, and the area of the first color changing area is larger than that of each second color changing area. According to the electrochromic device, the smaller color change area in the electrochromic device is taken as the preview area, and when the electrochromic device needs to change color, the preview area can reach the target transmittance more quickly, so a user can know that the electrochromic device starts to respond to color change more timely, and a final state of the electrochromic device after color change can be more quickly previewed so that use experience of a user is greatly improved. 本发明公开了一种电致变色器件及电子设备。该电致变色器件包括第一变色区域和至少一个