Nokia Lumia 630 running Windows Phone 8.1

Sofica Speedcam is an online service that measures how fast the camera is on a smartphone. And that is where an anonymous person decided to test the unannounced Nokia Lumia 630, aka the RM-974. The test confirmed that the device is powered by Windows Phone 8.1 (build 8.10.12324.0). And with previous rumors on Thursday speculating that both the Nokia Lumia 630 and Nokia Lumia 930 will both first see the light of day at the BUILD 2014 conference, we don't have terribly long to wait for not only the two handsets, but also for the introduction of Windows Phone 8.1.
According to one report published on Thursday, it looks like the Nokia Lumia 630 will feature a 4.5 inch screen with resolution of 480 x 854, have dimensions of 129.55 x 66.7 mm, be offered in various colors, and will have 3G connectivity. It will also have a 5MP camera without flash, which dovetails perfectly with evleaks leaked press image of the device. 

Visit to Sofica Speedcam reveals that Windows Phone 8.1 was spotted on the unannounced Nokia Lumia 630


source: NPU via WMPoweruser