LG’s answer to the Samsung Galaxy S III is here with the LG Optimus 4X HD arriving throughout Europe.

Unveiled at Mobile World Congress in February, the phone - which sports a 4.7-inch high-definition display - is already on sale in Germany and will be rolled out across the UK, Netherlands, Sweden and Italy in the coming days, before reaching the rest of Europe over the next few months.

With its NVIDIA 4-Plus-1 Quad-Core Tegra 3 processor, the Optimus 4X HD is LG’s first quad-core-packing smartphone. 

Whether it proves as popular as the Galaxy S III depends on the Optimus 4X becoming LG’s most-bought smartphone ever, with Samsung having received 9 million pre-orders and Phones 4u claiming it's already it's biggest selling handset of 2012.

No official word on pricing from LG yet, but you can whet the appetite by reading our hands-on here.

Are you thinking of buying the LG Optimus 4X HD? Let us know.