The countdown to March 14, when the highly-anticipated Samsung Galaxy S4 is expected to make its appearance, has already started. Recently, a few leaked images showed what the Galaxy S4 may look like, now a hands-on video of the Galaxy S4 has leaked and shows the smartphone in use.

The video named "Samsung Galaxy S4 World First Hands-on i9502 China Unicom Ver," is three minutes and 15 seconds long and shows the upcoming Galaxy S4 in action.

If the video is to be believed, then the Galaxy S4 looks very similar to the Galaxy S3 and has round corners as well. The handset seems to have sides made of aluminum and a plastic back, similar to the Galaxy S3. The model used in the video seems to have the front color of Titanium Gray and the back Marble White. The size of the Galazy S4 is definitely around 5-inches as speculated.

"The video reveal that the device features a 5″ Full HD AMOLED display, an Exynos Octa 5410 CPU, PowerVR SGX 544MP GPU and 2GB of RAM. The device is also running Android 4.2.1 Jelly Bean," reports SamMobile.

The video, however, does not reveal any more details of the Galaxy S4.

The Galaxy S4 is undoubtedly one of the most-anticipated Android smartphones of 2013. The expectations of smartphone enthusiasts have increased a lot with the success of the Galaxy S3, released in May 2012. Similarly, Samsung will want to keep up with consumer expectations and deploy the best in the upcoming Galaxy S4.

Check out the video below to see the Galaxy S4 in action.