Nokia going for launch of first Windows Phone 8 smartphones. It is not a priority for Nokia Lumia 820 or Nokia Lumia 920 to become Big Hit, but it’s absolutely vital that they convince users of Microsoft’s mobile platform’s potential. 
Android and iOS showed off only a part of work of Windows Phone 7 and relegated it to an also-ran statue. Nokia now cannot afford let history repeat itself. However Nokia Lumia 820 is in one or the other way a bit lucky of two global Nokia Products.It will compete in cheaper cost Segment than Lumia 920 and is safely out of range of Super Hit devices like Galaxy’s and iPhone’s.
Key features:
· Quad-band GSM/GPRS/EDGE support · Quad-band 3G with 42 Mbps HSDPA and 5.7 Mbps HSUPA support · 4.3″ 16M-Color ClearBlack AMOLED display of WVGA resolution · 8 megapixel autofocus camera with LED flash, 1080p@30fps video recording · VGA front-facing camera · Windows Phone 8 · 1.5GHz dual-core Krait CPU, Adreno 225 GPU, Qualcomm MSM8960 chipset, 1GB of RAM · Wi-Fi 802.11 a/b/g/n, dual-band · GPS receiver with A-GPS and GLONASS support · Free lifetime voice-guided navigation · 8GB of inbuilt storage, expandable through the microSD card slot · Active noise cancellation with dedicated mic · Built-in accelerometer, gyroscope and proximity sensor · Standard 3.5 mm audio jack · microUSB port · Bluetooth v3.0 with A2DP and EDR, file transfers · SNS integration · Xbox Live integration and Xbox management · NFC support · Digital compass · Nokia Music
Main disadvantages:
· App catalogue falls short of Android and iOS · No FM radio · No system-wide file manager · No lock screen shortcuts · Pretty large and heavy for the screen size Unlike its sibling, Nokia Lumia 820 offers microSD card slot for cheaper memory expansion, user-replaceable battery & exchangeable covers. How you experienced the Windows Phone 8, do share your care and concerns in comments box below.Tele-Columnist!