Display
The Oppo A31 sported a 4.5-inch IPS LCD display, with a resolution of 480 x 854 pixels. This resulted in a pixel density of approximately 218 ppi, which was modest but acceptable given its market positioning at the time. The display's 16:9 aspect ratio provided a standard viewing experience, although the screen-to-body ratio was about 64.6%, indicating visible bezels. The overall display quality was satisfactory for basic tasks like browsing and media consumption, though not ideal for those seeking high-resolution clarity.