Screen size, resolution and quality are some of the most important features to consider when choosing a smartphone.
Microsoft Lumia 640 XL sports a 5.7" sized 24bit IPS main screen with a resolution of 720 x 1280 pixels.
The width of the Microsoft Lumia 640 XL screen is 2.79" and its height is 4.97", giving an Aspect ratio of 1.78.
Lumia 640 XL LCD Size Comparison
The screen-to-body surface ratio of Lumia 640 XL is 70%.
Lumia 640 XL Screen to Surface Area Ratio
Pixel density (PPI:Pixels per inch) of a display is an indicator of its clarity and level of details.
Microsoft Lumia 640 XL has a pixel density of 258ppi. On the other hand, with a DPI of only 258mm, it has low resolution per inch compared to the average DPI of 317 of its class.