The next flagship device from Google Motorola is yet to be announced by the company, but the images of the upcoming Moto X smartphone have already started making rounds on the Internet.

A latest picture of a Motorola smartphone has been spotted by Phone Arena and it claims that the image is of Motorola's most rumored smartphone Moto X with codename XT1056. The device in the photo is shown running on Sprint's 4G LTE network.

There are two instructions printed on the device that indicate that the device is a prototype of the Moto X and being tested on Sprint's 4G LTE network.

The instruction just below the earpiece says 'not for sale' and another instruction at the bottom says 'Motorola confidential property'.

Design-wise, the device looks completely like the devices seen in earlier leaked images. The smartphone is shown packed in a case that looks to be protecting the prototype.  The bezel around the display is very thin and the display quality looks average that we assume is of 720 pixels.

In initial rumors, the Moto X was believed to be coming with Android's next version Android 5.0 Key Lime Pie, but later it was reported that the device will come running Android 4.3 Jelly Bean onboard.

However, the smartphone is now being rumored to be coming with Android 4.2.2 Jelly Bean.

The existence of the Moto X has already been confirmed by Motorola Mobility's CEO Dennis Woodside during All Things D's D11 conference where he said that Motorola has a 'hero device' called Moto X.

Renowned leakster @evleaks had published the specifications of the Moto X at the middle of this month where the  Twitter account was updated with information that the Moto X will come with a middle level dual-core Snapdragon S4 Pro processor clocked at 1.7 GHz. The device will be supported by a 2 GB of RAM and have 16 GB of internal memory. The smartphone will sport a 10 megapixel rear-facing camera and a 2 megapixel front-facing camera for video chat.