Microsoft Lumia 640 xl have 5.7 inch clear black display. Which best for strumming videos. This phone battery backup is so good. This phone have 13mp rear and 5mp back camera. Those camera capture picture is so good. This phone front and back design is very good and attractive. This phone have 1gb ram and 8gb rom which is not so good but useful. This phone running on windows 8.1 and upgrade to Windows 10. This things the phone is good and useful.