The Galaxy S6 and Galaxy S6 Edge have launched in the UK, marking the beginning of Samsung's yearly grudge match with Apple for control of the top end smartphone market.
The handsets are available now directly from Samsung and select retailers including Vodafone, Carphone Warehouse, Three, EE and O2 networks on a variety of call and data plans.
Both smartphones were made available for pre-order on the Samsung Store on 20 March where the 32GB Galaxy S6 costs £600 sim-free and the 64GB Galaxy S6 Edge retails for a staggering £760.
The two handsets are key releases for Samsung and are designed to rectify issues with the firm's previous Galaxy S5 flagship.
Despite reviewing well, the Galaxy S5 failed to meet Samsung's, and many analysts', sales projections.
The lower than expected sales led to speculation Samsung's reign as the world's top selling smartphone maker was coming to an end.
Samsung claims it has addressed these issues and worked to ensure the deviceswere "designed based on feedback from past Galaxy users".
The Galaxy S6 and Galaxy S6 Edge feature a wealth of top-end hardware and software components.
These include a "one of a kind" 14nm, 64-bit octa-core processor that combines quad-core 2.1GHz and 1.5GHz parts and a 5.1in Quad HD 2560x1440 577ppi screen that Samsung claims displays 70 percent more pixels than the Galaxy S5.
They also both include wireless charging support and "radically upgraded" 16MP, F-1.9 with Real Time HDR and Optical Image Stabilisation rear cameras.
Samsung claims that the F-1.9 lens lets in 60 percent more light than the Galaxy S5's lens and will radically improve low light performance.
Both the Galaxy S6 and Galaxy S6 Edge come loaded with Android 5.0 Lollipop overlaid with Samsung's Touchwiz skin. The Touchwiz skin is designed to be cleaner than past versions and comes loaded with a bare minimum of custom applications and widgets.
Key additions include Samsung's Pay and Knox services.
Samsung Pay is a contactless payment service that is also set to appear on both devices. Samsung Pay is similar to other payment services, but is based on NFC and MST.
Knox is a security feature designed for IT managers that makes it easier to manage Galaxy S6 and Galaxy S6 Edge handsets handling company data.
The only major difference between the two phones is that the Galaxy S6 Edge features Super Amoled 'Edge Screens', like those seen on the Galaxy Note Edge. The curved screens wrap around the left and right sides of the device.
Samsung vice president Conor Pierce listed the wealth of technologies as proof of the firm's continued commitment to innovate in the mobile phone space.
"The response to the Samsung Galaxy S6 and Galaxy S6 Edge devices has been overwhelming, the entirely redefined smartphones offer consumers what's next in mobility," he said.
"At Samsung, we don't talk about what might be possible tomorrow, we make it happen today and that's why we're bringing people new technology faster than anybody else."
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