Samsung, HTC and Motorola are pushing software limits and trying to conquer the smartphone world by boosting their devices with enviable speeds.

Traditional devices like PCs, laptops and notebooks are slowly but steadily losing ground as many consumers are opting for portable devices.

High resolution touch screen display, interactive web browsers and powerful cameras are making smartphones a replacement for not just PCs but also cameras.

As AT&T, Verizon, Sprint and T-Mobile are building their network in the U.S. with 4G network, LTE is becoming the norm and consumers are expecting their devices to provide them with the speed to catch up with their fast lifestyle. Hence Samsung, Motorola and HTC are bringing out their best feature phones to provide the data hungry consumers with LTE support for high quality browsing and video streaming.

Motorola Droid Bionic has gone a long way as to become the first dual core smartphone to feature the LTE technology. Unlike HTC Thunderbolt, Droid Bionic has impressed the users with long battery life. The 4G-enabled Verizon smartphone could last 8 hours while Droid Bionic gave 10 hours and 21 minutes talk time with 1735 mAh battery.

Meanwhile, HTC’s Holiday is expected to be AT&T’s first LTE phone. HTC Holiday looks different from other HTC phones as HTC is making a change to the rear of the phone. BGR reportedly sighted the phone running on the AT&T's upcoming LTE network with an impressive 29.71Mbps downstream and 6.43Mbps up speed. This speed is greater than anything Verizon network could offer, but the high speed is likely due to the lack of users on the network at the moment.

And finally we have Samsung Galaxy S2 LTE phone which is the most powerful Samsung Galaxy phone yet, overpowering the versions going to AT&T (commonly known as Attain), Sprint (Epic Touch 4G) and T-Mobile (widely touted in tech world as Hercules).

However, Verizon Wireless is the only carrier in the U.S. that will not offer the Samsung Galaxy S2. But with Samsung Galaxy S2 LTE version not yet announced for any carriers, the missing link in the puzzle must be here. The Long Term Evolution-equipped version may join the likes of Verizon network. The Galaxy S2 LTE version is not just fast but bigger too, and features faster UI, powerful superfast processor and a huge display. It also features 3D graphic performance for better gaming and other applications execution.

These three phones can maintain bitter rivalry against each other. Here is a comparison between, HTC Holiday, Motorola Droid Bionic and Galaxy S2 LTE.

The HTC Holiday has made tricky appearances in Craigslist and eBay. HTC Holiday featured prototype in eBay had 127x63.5x12.7 mm dimension, while Droid Bionic comes with 127.5 x 66.9 x 11 mm dimension and weighs 158.8 g. The Galaxy S2 LTE comes with 129.8 x 68.8 x 9.5 mm dimension and weighs lighter at 130.5 g.

Droid Bionic has 4.3-inch 540 x 960 pixels TFT capacitive touchscreen compared to HTC Holiday which comes with 4.5-inch 540 x 960 pixels capacitive touchscreen display. The Samsung Galaxy S2 LTE has a 4.5-inch 480 x 800 pixels Super AMOLED Plus capacitive touchscreen.

Input features:
All these three smartphones include accelerometer sensor for UI auto-rotate, multi-touch input method and proximity sensor for auto turn-off. The HTC phone comes with HTC Sense 3.0 UI while Droid Bionic features touch-sensitive controls. Samsung Galaxy S2 LTE has other features like Gorilla Glass display, TouchWiz UI v4.0, touch-sensitive controls and gyroscope sensor.

HTC Holiday has 1 GB RAM but the internal storage is yet to be uncovered. However, like most of the high-end HTC phones, HTC Holiday may feature a 1 GB storage with 32 GB microSD support along with 8 GB added memory. The Droid Bionic comes with 16 GB storage, 1 GB RAM, 2 GB ROM and 32 GB microSD support along with 16 GB included. Samsung Galaxy S2 LTE has 16 GB storage, 1 GB RAM and 32 GB microSD support along with 8 GB support.

The HTC smarpthone, as well as the Samsung Galaxy LTE version, will have HSDPA 21 Mbps and HSUPA 5.76 Mbps support. Motorola’s smartphone will have Rev. A up to 3.1 Mbps support.

The Holiday smartphone has Wi-Fi 802.11 b/g/n, DLNA and Wi-Fi hotspot similar to Droid Bionic. But Holiday will come with Bluetooth version 3.0 with A2DP, EDR and has microUSB version 2.0 whereas Droid Bionic has Bluetooth version 2.1 with A2DP and EDR. Meanwhile, Samsun Galaxy S2 LTE comes with Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot, Bluetooth version 3.0+HS and MHL USB support.

HTC Holiday has an 8-megapixel 3264x2448 pixels camera along autofocus, dual-LED flash, geo-tagging, touch-focus, image stabilization, face detection and instant capture support. The Motorola phone has an 8-megapixel 3264x2448 pixels camera with autofocus, dual-LED flash, geo-tagging, face detection and image stabilization. The Galaxy S2 LTE has similar megapixel camera but it comes with autofocus, LED flash, geo-tagging, touch focus, face and smile detection.

The Bionic can capture video at 1080p while Galaxy S2 LTE has a similar option. However, Galaxy S2 has 2-megapxiel camera compared to Droid Bionic’s VGA camera. HTC Holiday will be able to capture video at 1080p and supports VGA camera.

Operating system:
HTC Holiday is expected to arrive during the holiday season, and may sport Android OS version Ice Cream Sandwich whereas Motorola Droid Bionic has Android OS v2.3.4 (Gingerbread) support while Galaxy S2 LTE will feature the Android OS version 2.3 (Gingerbread). All these phones are expected to upgraded to the next version of Android OS.

The processor found in HTC Holiday is 1.2 GHz dual-core processor Broadcom BCM4330 chipset while Samsung Galaxy S2 LTE comes with 1.5GHz dual-core Qualcomm APQ8060 processor. The processor found in Droid Bionic is TI OMAP4 dual core 1.2 GHz processor.

The battery details of HTC Holiday are yet to be revealed but one can expect a huge battery for the huge smartphone. In fact HTC Sensation XE, the latest version of HTC Senstion which was launched lately, features Li-Ion 1730 mAh to power the beast, hence the probability of HTC Holiday having similar-sized battery.

Galaxy S2 LTE features a Li-Ion 1850 mAh battery but Motorola Droid Bionic betters it with a Li-Ion 1735 mAh.

Other common features:
The other common features in these smartphones include 3.5 mm jack, loudspeaker, SMS threaded view, MMS, Email, Push Mail, IM, HTML browser, games, Java via third party application, digital compass, A-GPS support , SNS integration, Google Search, Maps, Gmail, YouTube, Google Talk, voice-memo-dial-commands and predictive text input.

Other features found in Bionic are HDMI port and active noise cancellation with dedicated mic. Galaxy S2 LTE's extra features include stereo FM radio with RDS, optional NFC support and TV-out via MHL A/V link. The additional features of HTC Holiday have not yet been revealed.

The HTC Holiday prototype, which showed up on eBay, had a price tag of $800 without contract. The Taiwan-based smartphone manufacturer HTC is reportedly inviting a handful of mediapersons for a mysterious event in New York City on September 20. During this event HTC is expected to fully reveal the details regarding HTC Holiday, HTC Ruby or Amaze 4G. HTC has already announced two Windows Phone devices, the HTC Titan and HTC Radar, which are scheduled to hit stores next month.

Motorola Droid Bionic is getting mixed reviews and the smartphone is priced at $299 on contract whereas is offering it for $180 on contract. However, there is no word on when Galaxy S2 LTE will make it to the U.S. shores.