Apart from Apple Inc.'s iPhone 5, the most awaited Android Smartphones are the Samsung Galaxy S2 and the Motorola Droid Bionic. The much-awaited Samsung’s flagship Galaxy S2 smartphone has made it to the United States, quelling anticipation, and is set to compete with Motorola Droid Bionic for the market share.

Galaxy S2 comes to the U.S. after selling a record 5 million units in 85 days in Europe and Asia and is the best-selling Samsung phone ever. In the U.S., Galaxy S2 would be carried by AT&T, T-Mobile and Sprint, whose version would be called Samsung Epic 4G Touch.

Galaxy S2 is expected to come to Sprint's network on Sept. 16 and would be launched on AT&T from Sept. 18.

In what seems to be a twist in the tale, Verizon is not offering Samsung Galaxy S2, effectively making Motorola Droid Bionic the ultimate phone to receive all the attention in the days to come.

The launch of the Motorola Droid Bionic is finally drawing near after several postponements and numerous leaks about the device. Verizon Wireless confirmed on its Twitter page that the new beast of the Motorola Android phone will be unleashed on Sept. 8, as previously rumored by numerous sources. However, it was denied by Motorola later.

As I have said,The Motorola Droid Bionic is confirmed to release on September 8th, tweeted @DroidBionic on Friday.

No official specs have been confirmed yet for the Motorola Droid Bionic but after constant leaks there’s a widespread belief about what’s coming.

The Motorola Droid Bionic is powered by Android 2.3 and it looks similar to Droid X2, which is another dual core smartphone without 4G support. Droid Bionic has a huge battery power, 4G LTE and aqHD display of 4.3 inch 540x960 pixels TFT capacitive touch screen.

Galaxy S2, which runs on Android 2.3 Gingerbread OS and sports Samsung's TouchWiz UI, comes with an 8-megapixel camera with flash and can record HD video in 1080p offering the richest video content on a smartphone. The phone also has the front-facing 2-megapixel camera for video chat.

Both Android devices from Samsung and Motorola are offering quite a blazing performance at the hand of dual-core processing power. But, there still could be a thing or two that would make you choose one over the other.

Here is a comparison between Motorola Droid Bionic and Samsung Galaxy S2:

Operating system: The latest Android OS version 2.3 Gingerbread will be available in both the smartphones.

Processor: Samsung Galaxy S2 comes with dual-core 1.2GHz ARM Cortex-A9 Mali-400MP GPU Exynos processor with 1GB RAM. Droid Bionic will come with 1 GHz dual-core TI OMAP4430 processor.

Display: T-Mobile and Epic Touch 4G version of Sprint has 4.52-inch display screen whereas AT&T version retains 4.3-inch screen of original Galaxy S2 version sold worldwide. Motorola Droid Bionic will come with 4.3-inch 540 x 960 pixels TFT capacitive touch screen.

Size: Samsung Epic 4G Touch on Sprint comes with a 129.5 x 68.6 x 9.6 mm dimension and weighs 129 g, while the T-Mobile version, fondly known as Hercules, has 131 x 70 x 9 mm dimension. As the AT&T version retains 4.3-inch display, it is expected to feature 125.3 x 66.1 x 8.5 mm and weighs 116 g. With the Motorola Droid Bionic looking very similar to the Motorola Droid X2, it is expected to come with 127.5 x 65.5 x 9.9 mm, weighing close to 155 g.

Camera: Samsung's Galaxy S2 has an 8-megapixel 3264 x 2448 pixels camera with auto-focus, LED flash, geo-tagging, touch focus, face and smile detection and image stabilization. Droid Bionic has similar megapixel camera with auto-focus, dual-LED flash, geo-tagging, face detection and image stabilization. But, Droid Bionic Camera supports dual LED flash not a tactile dot.

Both Galaxy S2 and Droid Bionic smartphones can capture video at 1080p and there is a secondary camera. Motorola Droid Bionic has improved low-light performance and shutter lag that rivals that of a digital camera.

Storage: Galaxy S2 boasts 16GB internal storage and can be expandable up to 32GB via a microSD card. Droid Bionic comes with 1 GB LP DDR2 RAM and 16 GB storage.

Input features: The input features found in Galaxy S2 are Gorilla Glass display, TouchWiz UI v4.0, multi-touch input method, accelerometer sensor for UI auto-rotate, touch-sensitive controls, proximity sensor for auto turn-off and a Gyroscope sensor.

The Droid Bionic has features like touch-sensitive controls, multi-touch input method, accelerometer sensor for UI auto-rotate and proximity sensor for auto-turn-off.

Battery: The Galaxy S2 versions of T-Mobile and Sprint feature a Li-Ion 1800 mAh battery whereas AT&T versions retain Li-Ion 1650 mAh battery found in original Galaxy S2. The Motorola Droid Bionic is expected to come with a Li-Po 1930 mAh battery.

3G: The T-Mobile Galaxy S2 version has HSDPA 42 Mbps support while the AT&T version has HSDPA 21 Mbps support. And Epic 4G Touch has Rev. A up to 3.1 Mbps similar to Motorola Droid Bionic.

WLAN/Bluetooth: Galaxy S2 has Wi-Fi 802.11 b/g/n DLNA support and an added Wi-Fi Direct feature. Samsung's phone uses advanced 3.0+HS version Bluetooth with A2DP and EDR along with MHL microUSB version 2.0 for HDMI support.
Droid Bionic has Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot (connects up to 8 devices and when on 3G connects up to 5 devices), Bluetooth version 2.1 with A2DP and EDR technology and microUSB version 2.0.