With more Android smartphones coming to the market with advanced specifications, it is quite difficult to come to a decision on which one to buy. Two popular choices are Samsung Galaxy S2 and Motorola Photon 4G.

Samsung Galaxy S2, which runs on Android 2.3 Gingerbread OS, comes in three variants - on AT&T, T-Mobile and Sprint. Motorola's Photon 4G was launched on July 31, 2011, on Sprint.

Following is a comparison of Samsung Galaxy S2 with Motorola Photon 4G:

DisplaySamsung Galaxy S2 comes with a 4.3-inch WVGA SUPER AMOLED Plus display with resolution of 800 x 480 pixels at 217 ppi. Motorola Photon 4G has 4.3-inch qHD display with 960 x 540 pixels resolution with 256 ppi pixel density.

Size

Galaxy S2 weighs 116 grams and has a dimension of 125.3 x 66.1 x 8.5 mm. Photon 4G has a dimension of 126.9 x 66.9 x 12.2 mm and weighs 158 grams.

Operating system

The Android OS version 2.3 Gingerbread will be available in both the smartphones.

 Processor

The Sprint and AT&T variant of the Galaxy S2 is powered by a dual-core 1.2 GHz ARM Cortex-A9 Mali-400MP GPU Orion chipset while the T-Mobile variant is powered by a 1.5 GHz dual-core Qualcomm APQ8060 processor. Photon 4G comes with 1 GHz NVIDIA Tegra 2 AP20H dual Core processor with 1GB RAM and 2GB ROM.

Camera

Galaxy S2 has an 8-megapixel camera and a front facing 2 megapixel camera for video calling. Photon 4G has an 8-megapixel camera with autofocus, dual-LED flash and a secondary VGA camera.

Battery

Galaxy S2 has Li-Ion 1850 mAh battery support of more than 8 hours and standby time of 270 hours in 3G. The Photon 4G will have Li-Po 1700 mAh battery giving up to 9 hours of talk time and over 300 hours of standy time in 3G.