The Microsoft Lumia 550 runs Windows 10 OS out of the box. It is a device built with a 4.7-inch display, a 720x1280 resolution and a 314ppi index. Powering it from within is 1.1GHz Quad-Core Qualcomm Snapdragon 210 processor with 1GB of RAM and the Adreno 304 GPU. Its internal storage capacity is 8GB with an option to expand this by up to 200GB through the use of a microSD card. Photos may be captured from the 5MP rear-facing sensor or the 2MP sensor in front. The camera on the back can also record videos with 720p HD quality. Thanks to a Li-Ion 2100mAh battery included in the back of the phone, it is able to last up to 16 hours of talk time and 28 days in standby mode. Users may buy the phone in either black or white color.
See Available Plansor get it unlocked here