The Microsoft Lumia 640 LTE was announced in 2015, March. Released 2015, April With 5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio) IPS LCD, Powered by Qualcomm MSM8926 Snapdragon 400 (28 nm) and running Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10, the device delivered smooth performance and multitasking capabilities. Its 8 MP, f/2.2, 28mm (wide), 1/4.0", AF rear camera captured crisp photos and 1080p@30fps video, while the Li-Ion 2500 mAh, removable ensured long-lasting usage.