A newly leaked video of Windows Phone 8.1 shows several exciting new features in action, including separate volumes for the ringer and media, as well as triple-column support on the home screen. The video also supposedly confirms that the Windows Phone 8.1 update, which is highly anticipated for this summer, will most likely be coming to all Windows Phone 8 phones, since it can run on the Lumia 520, the lowest end of devices on the platform.

But some controversy has begun over the authenticity of the video. Some people claim that a GSM network seen in the video (at 0:42) is fake. Another area that enforces doubt is the fact that the user has the option to use Near Field Communication on the Lumia 520 in the video, a feature that the 520 is supposed to lack.

Many people’s theory is that what’s seen on the screen in the video is a playback of Windows Phone 8.1 recorded using an emulator on a PC. If you look closely, the scaling is a bit off, and it’s especially noticeable if you have a Lumia 520 personally available and compare the two. It’s also very possible that the user didn’t touch the screen, if you look at the angle at which the video was recorded. To top it all off, if it’s insanely laggy.

There is the possibility, however, that the scaling on Windows Phone 8.1 was actually changed, and that the NFC option was present because a beta of Windows Phone 8.1 hadn’t been made specifically for the Lumia 520 yet, and Microsoft was just making the same beta build available to all of the phones. The GSM network might be very real, and just lesser known (the video does seem to have been filmed in a foreign country, it must be noted), and the user may very well have touched the screen. Lastly, the lagginess may have been caused purely by the fact that the OS is still in beta.

What do you think? Is the video real or fake? Have a go at the video below, and let us know what you think in the comments.

Justin Howell
Justin loves all tech. Currently he uses a Nokia Lumia 520 and a Nexus 7. You can follow him on Google+ and Twitter for more.