Following the announcement of the Verizon-tied Lumia 928, Nokia unveiled their upgraded Lumia 920 for the global markets as well – the Lumia 925, known under the Catwalk codename. It is basically the 920 that got rid of the wireless charging weight and swapped polycarbonate frame for an aluminum one. However, there is more than meets the eye in details.

Lumia 925
Lumia 925 colour variants

Mass of the device dropped down to 139 grams (from 185 grams), and the new frame managed to shave down a nice layer of thickness as well ? to 8.5 mm (from 10.7 mm). In fact, this flagship unit is now the thinnest Windows Phone device available. This overall slimming of the device led to the appearance of a minor camera ?hump? on the 925 that used to be contained in a much thicker case of the previous model.

Lens assembly
OIS lens assembly of the Lumia 925 is similar to the one on the Lumia 920, with one additional piece of glass

An 8.7 megapixel OIS camera is the same unit found in the previous model(s), but with an extra lens layer on top, possibly to protect it from scratching since the hump is extending from the body of the device. The Nokia folks did mention on stage it should provide crisper and better images than the previous model, though. Screen technology changed as well. While it is the same 4.5-inches in physical size, it is no longer an IPS LCD but an AMOLED of the same 768×1280 resolution (332ppi) as before, though it is unknown whether it is of PenTile arrangement or not. Battery remains the same with 2000mAh capacity, however, Nokia claims it has almost 3 hours more of 3G (talk time) usage than the Lumia 920, possibly due to software optimizations and the use of the different screen tech. 1.5GHz Qualcomm Snapdragon S4 that powers the Lumia 920 is found in the Lumia 925 as well, leaving the platform completely devoid of the more current generation of Qualcomm SoCs.

Nokia focused a bit on the software side as well. The new Lumia comes with the Smart Camera mode that can be set as the default one whilst snapping photos, and it brings a few options such as Best Shot, Action Shot, and Motion Focus, fully employing the Scalado imaging software technologies. Additionally, they announced the Hipstamatic?s new application, Oggl, which will arrive on all Lumia smartphones soon. The app enables sharing on Instagram, Facebook, Twitter, Foursquare, Tumblr and Flickr, aside from their own Oggl network. Of course, services known form before, such as Nokia HERE suite of location and navigation services as well as the Music service are present on the new device.

While it is not the 41MP camera wonder device some have expected, it is already considered the best of what Windows Phone platform has to offer. Hardware is there, software-wise Microsoft really needs to push it this year.

Full Specifications:
 
Networks: GSM 850, 900, 1800, 1900, WCDMA, 2100, 1900, 850, 900, LTE 2100, 1800, 2600, 900, 800
Memory: 1GB RAM, 16 GB user memory Display: 4.5-inch AMOLED WXGA (1280×768)
Processor: 1.5 GHz dual-core Snapdragon
Camera: PureView 8.7-megapixel with OIS, Autofocus, dual LED flash.
2nd camera: HD 1.2MP wide angle
Size: 129 x 70.6 x 8.5* mm (*volumetric).
Weight: 139g
Connectivity: USB 2.0, BT 3.0, NFC, WLAN a/b/g/n, A-GPS and Glonass, 3.5mm audio connector
Battery: 2000 mAh
Audio: -IHF speaker, 2 microphones, HD voice compliant, 3.5mm AV connector