Samsung Galaxy S4 smartphones are available only in two colors across the world. However, the smartphone has been spotted in a third color variant in Japan.

The color apart from the 'Black Mist' and 'White Frost' is called 'Blue Arctic' and has been spotted in a brochure released by Japanese cellular carrier DoCoMo.

According to a SamMobile report, the blue color variant of the Galaxy S4 will be released in the Japanese market first and later it might reach other markets too. The blue color Galaxy S4 is expected to come out in the market sometime next month.

A Japanese technology blog, RBMen, has given the model number of the device as S4 SC-04E that will be available on Docomo's network.

The website has also posted the specifications of the device (given below):

* Snapdrgaon 600 1.9Ghz Quad-Core

* 5.0 inches FHD AMOLED (1920x1080)

* 2GB of RAM

* Storage capacity of 32GB (microSDXC 64GB)

* WI-Fi a / b / g / n, Bluetooth 4.0 + LE

* 13.2 million pixel camera, 2.1 million pixel camera

* 136.6 x 69.8 x 7.9mm 132g

* Android 4.2 Jelly Bean

The website reports that the device will be available at a docomo event to be held on May 15.

If the blue Galaxy S4 makes way to the U.S. market, it can also be anticipated that some carrier might get the exclusive rights for the device.

In October last year, Samsung released Amber Brown and Sapphire Black versions of the Galaxy S3 smartphone exclusively for Verizon.

Samsung had launched the Galaxy S3 devices in two colors: Marble White and Pebble Blue. After some days of releasing the smartphone in the U.S. market, Samsung launched a new color, Garnet Red exclusively for AT&T's 16GB models.

It's not only Samsung that offers exclusive devices to some of the major carriers. HTC also gave exclusive rights of the 64GB version of its recently launched HTC One smartphone to  AT&T.

There are also rumors that Google-Motorola's rumored X phone will be exclusive to AT&T for the first three months from its launch.