Celkon today launched the cheapest Windows-based smartphone in India called Win400 at a price of Rs 4,979. The smartphone runs on a 1.2 GHz quad-core Qualcomm Snapdragon 200 CPU and Windows Phone 8.1 operating system. The dual-SIM Win400 comes with a 5MP AF rear camera with Flash, 1.3MP front camera and a 4-inch WVGA display. It features 4GB of internal storage which can be expanded up to 32 GB and has 512MB of RAM. The device offers 15 GB of free One Drive storage and is available in White and Black colour options. The WIN 400 comes with 3G support GPS, Bluetooth 4.0 and Wi-Fi 802.11 on the connectivity front and is powered by a 1,500 mAh battery. Specs: 4-inch WVGA display Windows Phone 8.1 operating system 1.2 GHz quad-core Qualcomm Snapdragon 200 CPU 512MB RAM 4GB of internal storage which can be expanded up to 32 GB 5MP AF rear camera with Flash and 1.3MP front camera