Lumia 625 was unveiled last month. It packs a 4.7-inch (800 x 480 pixels) LCD display, which is the largest screen on a Lumia phone till date. It is powered by a 1.2 GHz dual-core Qualcomm Snapdragon S4 Plus MSM8930 processor and runs on the latest Windows Phone 8 OS with the latest Amber update.

It has a 5 mp auto focus camera with LED flash and a 0.3 mp front facing camera.

As far as Lumia 925 is concerned, this smartphone is an upgrade to the Lumia 920 device. The biggest change is in terms of design with the phone being only 8.5mm thick and weighing 139 grams. The Lumia 920 was much heavier and thicker at 185 grams and 10.7mm.

The Nokia Lumia 925 was introduced in May at an event in London and was seen as a new interpretation of company's flagship phone, the Nokia Lumia 920.