Samsung Galaxy S3
The Pop up play feature allows user to play a video anywhere on screen while simultaneously running other tasks, eliminating the need to close and restart videos when checking new emails or surfing the Web.

Taiwanese manufacturer HTC's Amaze 4G was announced in September and had an October market release. The smartphone, with an eight megapixel camera (dual LED flash and Zero Shutter Lag allowing for the photographing of moving objects), also has features like SmartShot and PerfectPics, as well as boasting Near Field Communication (NFC) technology. Key rivals Samsung and its flagship Galaxy S3 smartphone will release to UK markets on 30 May.

Check out how the two behemoths stack up against each other

Display: The Galaxy S3 features a bigger screen compared to the HTC Amaze 4G, which at 4.3in is a good.5in smaller. The Galaxy has a Super AMOLED capacitive touchscreen with a resolution of 720x1280 pixels and with a pixel density of 306 pixels per inch (ppi). The display has an upgraded evrsino of the Corning Gorilla Glass for protection against scratches and features the TouchWiz User Interface (UI) v4.0. The HTC Amaze 4G has a Super LCD capacitive touchscreen with a resolution of 540x960 pixels, a pixel density of 256 ppi and HTC Sense 3.0 UI.

Dimensions: The Galaxy S3 is a reasonably thin and lightweight smartphone, with dimensions of 136.6x70.6x8.6mm and weighing 133g. The HTC Amaze measures 130x65.6x11.8mm and is heavier than the Galaxy S3 at 172.9g.

Operating System: The Galaxy S3 will run on Android 4.0 (Ice Cream Sandwich (ICS)). The HTC Amaze runs on Android 2.3.4 (Gingerbread) and is expected to get the Android 4.0 ICS update.

Processor: The Galaxy S3 is powered by 1.4 GHz Exynos 4 quad-core processor which is Samsung's first quad-core application processor. The HTC Amaze is powered by a Qualcomm Snapdragon S3 dual-core processor clocked at 1.5 GHz. Both smartphones pack 1GB RAM.

Camera: The Galaxy S3 packs an eight megapixel main camera which features technologies like auto-focus, LED flash, geo-tagging, touch-focus, face and smile detection and image stabilisation. The phone's primary camera can record video in 1080p at 30 frames per second (fps) and the device also has a secondary camera of 1.9 megapixels which can capture video in 720p at 30 fps. The front-facing camera features a new technology called SmartStay, which allows the phone to sense when the user is looking at the display and lock the device when his/her attention is elsewhere.

The HTC Amaze sports an eight megapixel camera with auto-focus, dual-LED flash, geo-tagging, touch-focus, face detection, SmartShot, BurstShot, SweepShot and ClearShot technologies. The camera can record video in 1080p. The handset is also equipped with a two megapixel front-facing camera.

Connectivity: The Galaxy S3 offers Wi-Fi /b/g/n, Wi-Fi HT40, Near Field Communication (NFC), Bluetooth version 4.0 and 4G connectivity. It supports data speed up to HSDPA 21Mbps and HSUPA 5.76 Mbps.

The HTC Amaze offers Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi hotspot and Bluetooth version 3.0 with A2DP and EDR. Like the Galaxy S3, the HTC Amaze supports NFC.

Storage: The Galaxy S3 will come with storage capacities of 16GB and 32GB; the 64GB model is expected soon. The smartphone offers microSD card compatibility. The HTC Amaze offers 16GB of internal storage space, which can be doubled with the right microSD card.

Battery: The Galaxy S3 will be powered by a Li-ion 2100mAh battery. The HTC Amaze is powered by a Li-ion battery with a capacity of 1730mAh.