The 5 incher HD display does not awe us with size but its anti-glare and ease of sunlight viewing features got us talking. Also, Microsoft chose to go ahead with a shiny and bold look physically.The Lumia 640 is not a sleek handset. As for the Lumia 640 XL, the screen may measure 5.7-inch. There are interesting power saving settings on the Lumia 640 that runs on a mediocre 2500 mAh battery. Here the XL could score a sixer with 3000 mAh under the lid. As for the lifeblood of the Lumia phones, both the 640 and 640 XL run on 1.2 GHz quad-core Qualcomm Snapdragon 400 processor. As expected multiple functions and gaming will be a ease. Lumia 640 sports a 8MP main snapper. Expect much better camera on Lumia 640 XL, It may come loaded with13 MP main cam with LED flash and 5MP front camera. Also read: Microsoft Set To Unveil Lumia 940 As Early As June