Both Samsung and Nokia are popular smartphone brands, offering an array of handsets to the smartphone enthusiasts. With stiff competition in the smartphone market, both Samsung and Nokia have launched their flagship models which are intended to appeal to smartphone fans and tech-gurus alike.

In May this year, the South Korean smartphone maker Samsung launched the Galaxy S3 which surpassed sales of 20 million units in the first 100 days of hitting the shelves. Nokia, on the other hand, launched the Lumia 920 on Sept. 5. The Nokia offering packs in high-end features like PureView technology to attract the consumers.

Here's a round up of the S3 and Lumia 920'S features.

Display
The Lumia 920 sports a 4.5-inch curved glass WXGA LCD display with 1280x768 pixels resolution. The device touts PureMotion HD+, which has a superfast refresh rate and according to Nokia, "is better than HD resolution." Nokia claims that users can access the touchscreen even while wearing gloves.

The Galaxy S3 boasts a bigger 4.8-inch Super AMOLED screen with 1280x720 pixel resolution. The AMOLED technology gives users a more realistic output.

Operating System
Nokia's Lumia 920 runs on the latest Windows Phone 8 OS complete with its interactive "Live Tiles" interface. On the other hand, the Galaxy S3 comes pre-loaded with Google's Andoid Ice Cream Sandwich (ICS) along with Samsung's own Touchwiz user interface. However, Samsung recently announced that users can expect an upgrade to the latest Jelly Bean soon.

Processor
A 1.4 GHz Exynos 4412 Quad Cortex-A9 CPU with 2GB of RAM powers the Galaxy S3. The Lumia 920 features a 1.5 GHz dual-core Snapdragon S4 Processor with 1GB of RAM.

Camera
The Lumia 920 includes an 8.7-megapixel rear-facing camera with the much-touted PureView technology along with autofocus, dual LED flash, and a 1.2-megapixel front-facing camera. By contrast, the Galaxy S3 offers an 8-megapixel rear-facing camera with 3264x2448 pixels, autofocus, and LED flash, and a 1.9-inch front-facing camera.

Storage
The Galaxy S3 features 16/32/64 GB of on-board storage along with the option to expand the memory to a further 32 GB using a microSD card. However, the Lumia 920 is available only with 32GB of internal storage and does not a microSD card option in tow.

Battery
With both smartphones packing in high-end features, the need for a powerful battery becomes pivotal to their effective operation. Both Samsung and Nokia have included top-end batteries in the devices giving users higher productivity.

Lumia 920 comprises a 2000mAh battery, with Qi wireless support, which Nokia claims is the biggest battery it has ever installed in a smartphone. Additionally, tech experts opine that Nokia's much-touted Qi wireless charging technology is likely to attract more consumers.

On the other hand, a 2100mAh battery boosts the Galaxy S3. The Lumia 920 and Galaxy S3 support 10 hours and 11.6 hours of 3G talktime, respectively.

Weight and Measurements
At 185gms, the Lumia 920 is heavier than the Galaxy S3, which weighs 133gms. The Galaxy S3 is 8.6mm thick when compared to the Lumia 920's 10.7mm body thickness. However, the Nokia handset is slightly smaller and measures 130.3mm x 70.8mm, compared to the Galaxy S3's 136.6mm x 70.6mm dimensions.

Connectivity
Both the devices come fully loaded with every type of connectivity: 3G/HSDPA, Wi-Fi, Bluetooth, GPS, and NFC.

To surmise, both the Samsung Galaxy S3 and Nokia Lumia 920 have everything that is required in a high-end smartphone. With Samsung already leading the smartphone market, it remains to be seen if Nokia pull the rug from under Samsung's feet.