Nokia Lumina 900

Nokia Lumia 900 is a Windows Phone-powered smartphone, first unveiled on January 9, 2012 by Nokia at Consumer Electronics Show 2012, where it won the Best Smartphone award in January 2012. The phone has 4G LTE support and was released in April, 2012. Nokia Lumia 900 has a 4.3″ (109 mm) display and a ClearBlack AMOLED 800×480 capacitive touchscreen. It also features a one-piece polycarbonate body and is available in magenta, black, cyan and white.


Key Features
Features differentiating Lumia 900 from Lumia 800 are the bigger 4.3" (109 mm) display, a substantially higher capacity battery, fourth generation network (4G LTE) support, a front-facing second camera for video calling.

Software
The Lumia 900 device comes with four Nokia-exclusive applications not included by the default Windows Phone OS: Nokia Drive, a free turn-by-turn navigation system; Nokia Maps; Nokia Music, a free streaming music service and music store; and App Highlights, a service suggesting software based on location and operator. As of April 2012 it contains the following additional applications: Nokia Transport, a location-aware public transport schedule and navigation application; Creative Studio, a photo editing application; TuneIn Radio, a local and global radio streaming application; CNN, a news reader and video viewer for Cable News Network content; WRC Live, an application to follow live timing and media from the FIA WRC series.

Diagnostic Tool

Just like the Lumia 800, the 900 has the diagnostic tool. It can be obtained by pressing ##634# on the dial keypad, which should initiate the download after the last # is pressed. The diagnostic tool should appear on the app list under Diagnostics.

On this diagnostic tool a user can run tests on the following: Accelerometer, ALS, audio loopback, camera, battery status, DTMF, gyroscope, hardware buttons, headset detection, LCD white, lights, life timer, magnetometer, power source, proximity, speaker, touch and vibration. It's also possible to perform all the tests in one run.

Launch
In the US, Nokia and phone carrier AT&T launched a big marketing splash for Lumia 900. According to AT&T's representative, the campaign would be even bigger than those done for iPhone.

Source : Wikipedia