The Microsoft Lumia 540 Dual SIM was announced in 2015, April. Released 2015, May With 5.0 inches, 68.9 cm2 (~64.9% screen-to-body ratio) IPS LCD, Powered by Qualcomm Snapdragon 200 (28 nm) and running Microsoft Windows Phone 8.1 with Lumia Denim, 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 480p@30fps video, while the Li-Ion 2200 mAh, removable ensured long-lasting usage.