Nokia is pinning its hopes for a comeback on its latest smartphones.

The Finnish manufacturer has launched the Lumia 820 and 920 which use the Windows 8 operating system.

Once the biggest mobile phone maker in the world Nokia has fallen far behind the Apple iPhone and Samsung Galaxy in the lucrative smartphone market.

The 820 is already available online here while the 920 will be available from Friday.

The Windows operating system means integrated connectivity with your work or home computers while there are all sorts of features and apps to set the phones apart.

"Unique features"

It comes with what is being billed as "an impressive list of unique features".

These include Nokia Maps, along with other Nokia applications such as Transport, Music, Reading and 'City Lens'.

It also sees the world's first mass-market smartphones to come with Qi (pronounced 'Chee') wireless charging.

Juliette Gash reports.