The new smartphone in town HTC Sensation 4G may have entered the battle a little late as there are two Motorola smartphone beasts in Motorola Atrix and Droid Bionic to face. Many of the features in these smartphones outshine the upcoming Sensation 4G.

Here is a look at the comparisons of HTC Sensation 4G, Motorola Atrix 4G and Motorola Droid Bionic.

HTC Sensation 4G has dimensions of 126.1 x 65.4 x 11.3 mm and weighs 148 g. While Droid Bionic comes with a dimension of 125.9 x 66.9 x 13.3 mm weighing in at 158 g while Atrix 4G has dimensions of 117.8 x 63.5 x 11 mm and weighs 135 g.

Both Motorola Droid Bionic and HTC Sensation 4G has a display of 4.3 inches with a 540 x 960 pixel resolution but Sensation has a S-LCD capacitive touchscreen while Droid Bionic features TFT capacitive touchscreen. The Atrix 4G has 4-inch 540 x 960 pixels resolution TFT capacitive touchscreen display.

Input features:
All the three smartphones have common input features like multi-touch input, proximity sensor for auto turn-off and accelerometer sensors for UI auto-rotate. Droid Bionic has Swype input and like the Atrix it has touch sensitive controls. Sensation 4G has other features like Gorilla Glass display, gyro sensor and HTC Sense version 3.0 UI. And Atrix 4G has biometric fingerprint reader, Gorilla Glass display and MOTOBLUR UI with Live Widgets.

Motorola Atrix features 1 GB RAM with 16 GB internal storage while Droid Bionic comes with 16 GB internal storage, 512 MB RAM and 2 GB ROM. The Sensation 4G has 1 GB storage and 768 MB RAM. All the smartphones have microSD support up to 32 GB but Sensation 4G has 8 GB included.

The Sensation 4G and Atrix 4G has support of HSDPA 14.4 Mbps and HSUPA 5.76 Mbps whereas Droid Bionic comes with Rev. A up to 3.1 Mbps LTE.

WLAN/ Bluetooth/ USB:
Again all the three smartphones have Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot support and features microUSB version 2.0. When it comes to Bluetooth both the Motorola phones have version 2.1 with A2DP EDR while HTC’s smartphone has Bluetooth version 3.0 with A2DP.

The Droid Bionic and HTC Sensation features 8-megapixel 3264x2448 pixels camera with autofocus, dual-LED flash, geo-tagging, face detection, image stabilization but Sensation has extra features like touch-focus and instant capture. On the other hand Atrix 4G has 5-megapixel 2592?1944 pixels camera with autofocus, LED flash, geo-tagging and image stabilization. Motorola’s smartphones can capture video 720p but is expected to receive 1080p via a future update. HTC Sensation can capture video at 1080p. And all the three smartphones have a secondary VGA camera.

Operating System:
HTC Sensation 4G has the latest Android OS version 2.3 (Gingerbread) compared to Motorola’s phones which have Android OS version 2.2 (Froyo) but is expected to be updated in future to Gingerbread version.

Motorola’s smartphones have the powerful dual-core 1GHz ARM Cortex-A9 ULP GeForce GPU Tegra 2 chipset processor while HTC Sensation 4G features a faster 1.2 GHz dual-core Adreno 220 GPU Qualcomm MSM 8260 Snapdragon processor.

Once again Motorola smartphones have standard Li-Po 1930 mAh battery as against HTC smartphones Li-Ion 1520 mAh battery. The standby time and talk time of Droid Bionic is yet to be tested but Atrix 4G has a standby time up to 350 h (3G) and talk time up to 9 h (3G) while HTC Sensation has a standby time of 350 h (3G) and talk time up to 8 h 20 min (3G).

Other features:
The common features of three smartphones are SMS threaded view, MMS, Email, Push Email, IM, HTML browser, A-GPS support, Java MIDP emulator, SNS integration, digital compass, Google Search, Maps, Gmail, YouTube, Google Talk, organizer, voice memo-dial-commands and predictive text input.

And the common features found in both Motorola smartphones include HDMI port, active noise cancellation with dedicated mic, MP3/WAV/WMA/eAAC+ player and photo viewer and editor. But Droid Bionic has MP4/WMV/H.263/H.264 player while Atrix comes with 1080p MP4/H.263/H.264.WMV/Xvid/DivX playback. HTC Sensation has extra features like TV-out via MHL A/V link, Picasa integration, MP3/AAC+/WAV/WMA player and XviD/MP4/H.263/H.264/WMV player.

Motorola Atrix 4G is featured in AT&T whereas Motorola Droid Bionic will go to Verizon and HTC Sensation will head to T-Mobile.

The Atrix smartphone is already available in the market and is taken over the market with its laptop docking capability and Motorola HD Multimedia Dock which has three USB ports and an HDMI port enabling connections to a keyboard, mouse, speakers and HDMI-compatible monitor or television. The smartphone has become cheaper with a price tag of $99 at Amazon, which is $100 less than purchasing the phone at AT&T directly. The $99 price does require a 2 year AT&T service agreement at time of purchase.

Motorola Droid Bionic was announced during the CES and has been delayed for a long time. It was actually slated for a release in the second quarter, but the lack of leaks suggest Verizon hasn’t gotten the device into the hands of testers for the final push. The smartphone may not be available for purchase until the third quarter as Motorola said it pushed back the timing of the launch to incorporate new features into the phone.

A Motorola spokeswoman said, “Based on compelling feedback since [Consumer Electronics Show in January], we are incorporating several enhancements to make this an even better consumer experience.” But other reports show that Droid Bionic will be available in Costco on May 12. The most important factor that may put the smartphone in the limelight is its LTE technology. Motorola Droid Bionic is priced at $149.99 with a new two-year Verizon contract.

The HTC Sensation's price is yet to be announced but the smartphone has video-on-demand service and the HTC Watch app along with the Video Trimmer tool.