Samsung Galaxy S3 with Jelly Bean update is set to roll out this week. You may want to wait a little bit longer, however, as Google is rumored to unroll a new version of its Android operating system paired with its own smartphone.

Just like in the introduction of Jelly Bean, it's unveiling a new device, this time around a new smartphone. The LG Nexus 4 is rumored to be replacing last year's Nexus smartphone, the Samsung Galaxy Nexus, and it will mark the first time a company not called HTC or Samsung will have made a Nexus.

Very little specs are known about the rumored LG Nexus 4. It is expected to battle head on with the smartphones that are currently in the market such as the Samsung Galaxy S3.

Samsung stunned everyone when it released its flagship phone last May. Samsung Galaxy S3 quickly rose to the top and pushed over other smartphones at the second quarter of this year. Some of the selling points of the Galaxy S3 are its massive screen, 4G/LTE support, and NFC capability via S-Beam.

As October 29 nears, we will be able to know the confirmed specs for the Nexus 4 as well as further features, release, carriers and pricing.

Below is the comparison of the two devices. Note that the specs and features of the LG Nexus 4 are still unofficial.

Screen Display - Samsung Galaxy S3 sports a 4.8 inch super AMOLED screen with 1280 x 720 pixel resolution while LG Nexus 4 is rumored to have a 4.7-inch True IPS display with 1280 x 768 pixel resolution.

Processor - The Galaxy S3 is powered by 1.4GHz Exynos 4412 quad-core processor with 1GB of RAM. The LG Nexus 4 is rumored to have 1.5GHz Snapdragon S4 Pro quad-core processor with 2GB of RAM.

Operating System - Samsung Galaxy S3 was released with Ice Cream Sandwich version of Google's Android. However, Jelly Bean update is expected to be rolled out this week. LG Nexus 4 is expected to be introduced with Android's new Key Lime Pie version, which is rumored to be unveiled on the same date.

Storage - Samsung Galaxy S3 is available in 16GB, 32GB and 64GB variants with expandable memory via microSD slot up to 32GB. Some tech websites claimed that the LG Nexus 4 will be released with 8GB storage option while others claimed that it will be equipped with 16GB of storage.

Camera - Samsung's flagship phone sports an 8-megapixel rear camera and a 1.9-megapixel front-facing camera. LG Nexus 4, on the other hand, is thought to have an 8-megapixel rear camera and 1.3-megapixel front shooter.

Battery - The Galaxy S3 is equipped with 2100 mAh battery. The upcoming LG Nexus 4 is also speculated to come with the same battery.

Samsung Galaxy S3 is available in Samsung Stores and through various carriers. However, more details are expected to be known about the LG Nexus 4 in the coming days.