Samsung has been working hard to prove that it's still an innovator in the smartphone market ever since its 2014 effort failed to meet most analysts', and the firm's own, sales projections.
Samsung gained some ground in 2014 thanks to the Galaxy Note Edge, which generated attention at IFA for its use of a curved screen that wrapped around its right-hand side.
The company attempted a repeat performance at MWC, launching the Galaxy S6 Edge alongside the Galaxy S6.
Design and build
Galaxy S6: 143x71x6.8mm, 138g
Galaxy S6 Edge: 142x70x7mm, 132g
The Galaxy S6 and Galaxy S6 Edge share the same design philosophy and both feature a metal chassis and Gorilla Glass back. This combination makes both handsets feel like hybrids of the Sony Xperia Z3 and iPhone 6.
The only noticeable difference between the Galaxy S6 and Galaxy S6 Edge is that the latter is slightly fatter at 7mm, and has twin Super Amoled Edge Screens like those on the Galaxy Note Edge wrapped around its left and right sides.
The Edge Screens reduce the amount of metal used on the Galaxy S6 Edge and make it a full 6g lighter than its chunkier Galaxy S6 sibling.
Both phones come with fingerprint scanners and wireless charging capabilities.
Galaxy S6: 5.1in, 2560x1440, 577ppi, Super Amoled
Galaxy S6 Edge: 5.1in, 2560x1440, 577ppi, Super Amoled with add-on 'Edge Screens'
The two Samsung handsets have identical main screens, which Samsung claims display 70 percent more pixels than the Galaxy S5 and are the sharpest ever seen on a smartphone.
The Galaxy S6 Edge's side screens offer extra functionality and can be set to offer shortcuts for applications or custom widgets that push information to the user on features like weather or incoming message alerts.
Galaxy S6: Android 5.0.2 Lollipop with TouchWiz UI
Galaxy S6 Edge: Android 5.0.2 Lollipop with TouchWiz UI
The Galaxy S6 and Galaxy S6 Edge come with Google's latest Android 5.0 Lollipop software overlaid with Samsung's TouchWiz skin.
We've not been fans of TouchWiz as it tends to flood the operating system with bloatware and makes needless changes to Android's user interface.
However, Samsung has reduced the number of changes to Android with the newest TouchWiz version and all the additions are positive. Key TouchWiz features include Knox, Samsung Pay and a reworked camera application.
Knox is a security solution that lets companies create and manage separate, password-protected and encrypted areas on the Galaxy S6 and Galaxy S6 Edge.
Samsung Pay is a contactless payment service based on near-field communication and magnetic secure transmission. The camera app features a 'Pro' mode that offers manual control over settings like ISO and white balance.
Galaxy S6: Octa-core Exynos 7420
Galaxy S6 Edge: Octa-core Exynos 7420
Samsung has loaded both handsets with its latest "one of a kind" octa-core Exynos 7420 chip. We haven't had a chance to benchmark the chip on either device, so we can't concretely comment on performance yet.
However, during our initial tests at MWC of both the Galaxy S6 and Galaxy S6 Edge we were impressed with the two handsets' performance. Both smartphones felt reactive and a fraction of a second faster than Samsung's previous generation smartphones.
We'll be excited to see how the Galaxy S6 and Galaxy S6 Edge perform with more thorough testing come our full review.
Galaxy S6: 16MP, F-1.9 with Real Time HDR and Optical Image Stabilisation rear; 5MP, F-1.9 Real Time HDR front
Galaxy S6 Edge: 16MP, F-1.9 with Real Time HDR and Optical Image Stabilisation rear; 5MP, F-1.9 Real Time HDR front
Samsung has worked hard to improve its smartphone camera technology over the past year, and it seems to have paid off.
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.
The Real Time HDR shoots several images and combines them to create a more consistent and accurate photo.
Galaxy S6: Non-removable Li-Ion 2550mAh battery
Galaxy S6 Edge: Non-removable Li-Ion 2600mAh
The Galaxy S6 Edge features a larger battery, but it's unclear how much the curved-screen set-up will affect its life. We'll test this during our full review.
Storage and memory
Galaxy S6: 32GB, 64GB or 128GB, 3GB RAM
Galaxy S6 Edge: 32GB, 64GB or 128GB, 3GB RAM
Both handsets have identical internal storage options and memory, with no microSD card.
Galaxy S6: Undisclosed
Galaxy S6 Edge: Undisclosed
Samsung is yet to reveal prices for the Galaxy S6 and Galaxy S6 Edge. However some retailers have begun guessing.
Unlocked Mobiles hasn't yet started taking pre-orders, but is currently listing the 32GB Galaxy S6 with a £549.98 SIM-free price tag. It's listing the 32GB Galaxy S6 Edge with a more premium £649.98 SIM-free price.
Outside of the inclusion of curved "Edge Screens" and slightly larger battery, the Galaxy S6 Edge and Galaxy S6 are close to identical.
This is no bad thing as both handsets are set to feature a wealth of top end and useful features. These include wireless charging support, Samsung Pay and Knox, a "one of a kind" octa-core processor and a completely reworked rear camera.
The big question is whether the Edge displays upgraded productivity services will be enough to justify the Galaxy S6 Edge's increased cost.
Check back with V3 later for in depth reviews of the Samsung Galaxy S6 and Galaxy S6 Edge.
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