Nexus 6 vs Nexus 5 - the battle between the forthcoming smartphone and the 2013 flagship device from Google will definitely heat up this year.

With 2014 already here, tech enthusiasts are even more excited to see new and next-generation of devices. This year, Google is expected to launch the next-generation version of its 2013 flagship smartphone, the Nexus 5. So below are more information and specs comparison of last year's Google Nexus smartphone and the upcoming Nexus 6.

Nexus 6 vs. Nexus 5: Release Date

Nexus 5, co-developed by Google and LG Electronics, was unveiled on the last day of October 2013. Also, during the same day, the 2013 Google smartphone was made available online via Google Play in selected countries.

For Nexus 6 release date, it is most likely that Google will release the smartphone towards the end of 2014, as posted on International Digital Time.

Nexus 6 vs. Nexus 5: Firmware

Nexus 5 is running Android 4.4 KitKat operating system and currently it can be upgraded to version 4.4.2 of the latest mobile operating system from Google. Meanwhile, Nexus 6 is expected to get the upcoming iteration of the Android operating system, which is currently dubbed as Android 5.0.

Nexus 6 vs. Nexus 5: Processor and More

A concept video was posted on Youtube suggesting the possible specs of Nexus 6. Accordingly, the 2014 flagship smartphone may get a quad-core Snapdraon 805 processor, 3 GB RAM and a 5.2-inch display screen with 2K resolution and Gorilla Glass 4.

The 2013 flagship smartphone is equipped with Snapdragon 800 chipset, Quad-core 2.3 GHz Krait 400 as well as the graphics engine, Adreno 330 GPU. For the display, it uses Corning Gorilla Glass 3.

Nexus 6 vs. Nexus 5: Camera

Nexus 5 has an 8 MP primary camera with features such as autofocus, LED flash, and optical image stabilization. On the other hand, reports are suggesting that the Nexus 6 might be equipped with 13-megapixel camera.

To learn more about the possible Nexus 6 specs, you can watch the concept video below: