The Samsung Galaxy S2 was, hands down, one of the more popular smartphones in 2011. The device boasted the 3D TouchWiz User Interface 4.0.

Meanwhile, Taiwanese mobile major unveiled its One series of Android smartphones, which includes the HTC One X, recently. The phone boasts the Beats audio performance, which promises realistic sound experience and the best camera features. It further includes the Dropbox cloud storage feature, which will provide 25GB of free space, for two years.

The question now - is it better to buy a Galaxy S2 or wait for the HTC One X?

Display: The HTC One X includes a Super IPS LCD2 capacitive touch-screen. The 4.7-inch smartphone has a resolution of 1280x720 pixels at 312 pixels per inch (ppi) and offers the HTC Sense User Interface.

By comparison, Samsung's Galaxy S2 comes with a Super AMOLED Plus display which provides improved readability. The 4.3-inch device has a resolution of 800x480 pixels at 217 ppi and has the TouchWiz User Interface 4.0.

Processor: The HTC One X packs the powerful NVIDIA Tegra 3 with 4-Plus-1 processors. It is powered by a 1.5 GHz quad-core CPU with 1GB of RAM. On the other hand, the Galaxy S2 has a 1.2 GHz dual-core CPU and an Exynos chipset also with 1GB of RAM. The high-speed processor ensures fast browsing, quick multi-tasking and a powerful gaming experience.

Operating System: The HTC One X will run on Android 4.0 (Ice Cream Sandwich). Samsung's Galaxy S2 runs on the Android 2.3.4 Gingerbread software.

Camera: The HTC One X has an 8 megapixel camera, with a resolution of 3264x2448 pixels. It sports features like autofocus, LED flash, geo-tagging and face and smile detection. It supports full HD video and image recording at 1080p. The 1.3-megapixel secondary camera is suitable for video chats. The Galaxy S2 has a similar unit - an 8 megapixel rear-facing camera with LED flash. It comes, however, with a 2 megapixel secondary unit.

Storage: The One X has internal storage of 32GB. By comparison, the Galaxy S2 comes in 16GB/32GB variants. In addition, it has a microSD card slot which allows for expansion up to 32 GB.

Connectivity: The HTC's One X incorporates Near Field Communication (NFC) connectivity. Its WLAN feature includes Wi-Fi 802.11 a/b/g/n with a Wi-Fi hotspot and Bluetooth 4.0 technology. Similarly, the Galaxy S2 includes Wi-Fi 802.11 a/b/g/n with W-F- hotspot. It supports Bluetooth 3.0 technology.