HTC EVO™ 3D
The HTC EVO™ 3D comes with a 1.2 GHz dual core processor. This makes the Phone really fast in terms of processing data. It runs an Android 2.3™ (Gingerbread) Operating System.

The phone boast of 4.3-inch (109 mm) qHD display. Users can now capture images and videos in 3D without the need to use specialized glasses.
The dimensions of the phone are set at 4.96” (height) x 2.57” (width) x 0.44” (depth). Weight is approximately 6oz or 170grams (with battery).
Shooting an image or video may be done with two options: 2D or 3D. A 5 MP resolution is set for 2D while 2 MP for 3D. A front camera is supported at 1.3 MP.
Users can connect through Bluetooth™ for file exchange. It also supports Wi-fi® and USB tethering. The phone also boasts sensors namely: gyro sensor, G-Sensor, digital compass, proximity sensor and ambient light sensor.

In terms of storage, the phone has an internal memory of 1GB while it supports microSD™. Battery life is approximately 355 hours (stand-by) and 450 minutes (talk-time).

HTC EVO View 4G™
The phone’s dimensions are 7.69” (height) x 4.42” (width) x 0.52” (depth). It has a 1.5 GHz Qualcomm® Snapdragon® processor. It runs on an  Android 2.3 Gingerbread with HTC Sense™. Storage includes RAM of 1GB and a 32GB eMMC. The Screen size is at 7” with a 1024×600 screen resolution. The screen is touch screen. With the pen accessory, users may take down notes using HTC’s Scribe Technology.

In terms of multimedia, the phone has two cameras: 5 MP with auto focus on the rear and 1.3 MP in front. In terms of connectivity, the phone has a Bluetooth™ and micro-USB.

HTC EVO Shift™ 4G
The HTC Evo Shift™ 4G comes with a Qualcomm MSM7630. It runs on a current operating system (OS) Android™ 2.3 (Gingerbread) or on 2.2 (Froyo). . The phone’s dimensions are 4.61” (height) x 2.32 (width) x 0.59 (depth). It’s screen size is around 3.6” with 262K color TFT LCD. The display is touch screen. The phone has a 5 MP camera with auto focus.

Battery life is approximately 360 minutes (talk-time). Storage include 512 RAM and 2GB ROM. The weight of the phone is approximately 166 grams or 5.85 oz (with battery).

NEXUS S ™ 4G from Google
Nexus S™ 4G is installed with the latest Android™ operating system, Gingerbread (2.3). It runs a 1GHz Cortex A8 processor (Hummingbird). The dimensions of the phone are 63mm x 123.9mm x 10.88mm. Its weight is around 129 grams. Display of the phone is 4.0” WVGA. Storage includes a 16GB internal memory. The phone has 2 cameras: 5 megapixels in the rear with flash and auto-focus while a VGA camera in front especially designed for video call. Battery life is approximately 18 days (stand-by) and 7 hours (talk-time). Connectivity includes a Bluetooth™, Wi-fi®, and microUSB 2.0.

Samsung Epic™ 4G
The phone has a spacious screen of 4.0” Super AMOLED display. It has anti-smudge and anti-scratch screen which adds to clear resolution for a fine viewing. It comes with an Android™ 2.1 Eclair operating system. It is touch screen with a virtual QWERTY board. The dimensions include 4.18” (height) x 2.5” (width) x 0.39” (depth). It weighs around 5.47 oz. Battery life is around 6 hours (talk time) and 300 hours (standby time). Connectivity includes HTML browser, Bluetooth™, Wi-fi® and USB connectivity. Storage includes 16GB / 512 MB RAM as internal memory and is expandable to 32GB (through external memory card).

The phone has a Swype® technology which allows the user to compose messages with a speedy continuous touch of the screen (through QWERTY virtual keyboard).

Comparison of Specs