Looks like Nokia is planing another variant of Lumia 820 smartphone specifically for Chinese market. A Chinese site WinP.cn has published few pictures showing an unannounced Nokia WP smartphone, the Lumia 825.

The Lumia 825 is slightly improved version of Lumia 820, sports upgraded 16 GB of internal storage, and now features the same PureMotion HD+ Display with supersensitive touch as the Nokia Lumia 920. The remaining core specs are the same as L820 - a dual-core 1.5 Ghz processor, 1GB RAM, 4.3 inch screen, and 8 megapixel Carl Zeiss camera with dual-flash, and will run the latest version of Windows Phone 8. The device is expected to hit shelves in February 2013.

[Source, Via]