Key difference: One of the first smartphones under the brand is the Nokia Lumia 820. The Nokia Lumia 820 was first of the first phones to be developed running on Windows Phone 8. It was launched in November 2012, as a slightly cheaper alternative to the Nokia 920. The HTC One X is a popular product of the HTC Corporation. It comes with Android v4.0 Ice Cream Sandwich and is upgradable to v4.1.1 Jelly Bean.

Nokia is a multinational communications and information technology corporation based in Helsinki, Finland. Nokia’s phones have been famously known as being simple and durable. In 2012, it was the world’s second largest mobile phone maker by unit sales, following Samsung. However, the sales of Nokia have been decreasing as more and more of the market shifts towards smartphones such as iPhones and Androids. In an attempt to offset their decreasing sales, Nokia tied up with Microsoft to release its own line of smartphones, the Nokia Lumia running on Windows Phone Operating Software.

One of the first smartphones under the brand is the Nokia Lumia 820. The Nokia Lumia 820 was first of the first phones to be developed running on Windows Phone 8. It was launched in November 2012, as a slightly cheaper alternative to the Nokia Lumia 920. It has a 4.3 inch display with a resolution of 480 x 800 pixels. It is powered by a Qualcomm MSM8960 Snapdragon Dual-core 1.5 GHz Krait processor and a 1 GB RAM. The phone has 8 GB internal memory and an external memory expandable up to 64 GB.

Nokia Lumia 820 features an 8 MP primary camera with autofocus and dual-LED flash, as well as Carl Zeiss optics. It also has a VGA secondary front-facing camera for self photo shots and video calling. The phone is available in a variety of bright colors, such as black, gray, red, yellow, white, blue, and violet. In fact, the phone comes with back panels in these colors allowing the user to change the phone’s color every few days.

The newest and most distinguishing feature of the Lumia 820 is that the phone is capable of wireless charging. However, the wireless charging mat is not included with the phone and has to be purchased separately.

However, the phone has been criticized as being chunky and heavy. Another issue with the phone, in fact all the Windows phones, is that it comes with the Internet Explorer browser built-in, which can be quite lagging at times, and the phones do not support any other browsers. Furthermore, the collection of apps available on Windows is quite limited, especially as compared to the apps available for Android and Apple.

An OEM which has Android based devices in the market is the HTC Corporation. The Taiwan-based company is considered one of the key players in the market of smartphones and tablets. One of its range of popular products are the HTC One Series. These included HTC One X, HTC One X+, HTC One V, etc. One of the most popular ones of these is the HTC One X.

HTC One X was initially announced as the flagship product of the HTC One series. It comes with a 4.7-inch super LCD 2 with 1280 x 720 (HD, 720p) and Corning Gorilla Glass. The HTC comes with Android v4.0 Ice Cream Sandwich and is upgradable to v4.1.1 Jelly Bean. When the HTC One X was launched it was the first phone to be offered with a quad-core processor among the HTC smart phones, making it the fastest HTC phone to date. It includes a 1.5 GHz, quad-core (global version) and 1.5 GHz, dual-core LTE version (USA and selected countries) along with ULP GeForce GPU and 1GB RAM. The phone is offered with non-expandable, 16 or 32 GB internal storage capacity.

The phone is a predecessor to the HTC One X+, which is an upgrade on this phone. The phone offers a better battery at 1800 mAh compared to the older devices, which would die pretty fast. The device offers Beats by Dr. Dre, making it a pretty awesome music player. It offers an 8 megapixel camera with auto focus, smart LED flash, and BSI sensor, along with a 1.3 megapixel, 720p secondary camera. However, the device does offer a physical camera button and only has an onscreen click button. The device’s image processor, HTC's ImageChip, removes noise, balance color and extends depth of field.

The information for the detailed table about the two phones has been taken from the Nokia website, the HTC website, cnet.co.uk, and GSMArena.com.

Image Courtesy: nokia.com, gsmarena.com