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It seems that more manufacturers are starting to get bored of plastic and they’re using more metal (or glass) for the exterior of their phones. And both Samsung and HTC reinvented themselves and started gaining more fans.

HTC prefers metal and the One M7 was their first phone to feature an aluminum chassis, while Samsung switched from polycarbonate to glass on both sides of its Galaxy S6/S6 Edge. The phone has a metallic frame which is curved on the double edged variant. So, which one to buy?

Dimensions and displays

The Galaxy S6 Edge, with its translucent back, is available in four variants of colors: Black Sapphire, White Pearl, Gold Platinum and Green Emerald, it measures 142.1×70.1x7mm, it weights only 132grams and sports a Super AMOLED screen sized at 5.1inches, which offers a resolution of 1440×2560 pixels with 577ppi. The screen is curved on both sides and on those sections, Samsung didn’t use a full RGB pixel structure so the portion isn’t too sharp.

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But the rest of the screen hits 100 percent of the sRGB color gamut, so the colors are richer and more vibrant. The screen has been tested and obtained a score of 0.02cd/m2, being almost perfect. The screen of the Galaxy S6 had a much better score of 0.00cd/m2.

The One M9 has a full-body metal chassis, it measures 144.6×69.7×9.6mm and it’s much heavier at 157grams. Its screen is Super LCD3, sized at 5inches, and the resolution is Full HD of 1080×1920 pixels, which gives 441ppi. In the tests, it scores 0.35cd/m2 (mediocre) and it seems that can cover only 87.1 percent of the sRGB color gamut. The brightness reaches 478.50cd/m2, compared to 341.09cd/m2 on the Galaxy S6 Edge.


Samsung has been focusing on its own chipsets and build a perfect Exynos 7420 octa core processor with cores running at 1.5GHz and 2.1GHz respectively. The phone houses 3GB of RAM, likewise the One M9, but this phone has a Qualcomm MSM8994 Snapdragon 810 octa core processor with cores running at 1.5GHz and 2GHz respectively. Both phones use four Cortex-A53 cores (power efficiency), while the other four cores are Cortex-A57 and they’re in charge with the heavy lifting.

In the benchmarks, it was proved that the Galaxy S6 Edge is faster than the One M9, scoring 5,130 in the multicore test and 1,496 in the single core test, compared to 3,649 in the multicore test and 945 in the single core test.


The Galaxy S6 Edge is powered by a 2600mAh battery that lasts 15h 33m when playing videos at a brightness of 170cd/m2. The One M9, with its 2,840mAh battery, lasts 9h 13m in similar conditions.

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Internal memories

The One M9 houses 32GB of storage, which is expandable up to 128GB, while the Galaxy S6 Edge has unexpandable storage and variants of 32, 64 and 128GB.


The Galaxy S6 Edge sports a 16MP back camera with brighter aperture lens of f/1.9 and it has useful features that include optical image stabilization, autofocus and auto HDR. The front camera is 5Mp and takes accurate selfies.

The One M9 relies on the 20MP back camera with f/2.0 lens and dual-LED flash, but the results are not as good as expected, because it doesn’t expose correctly the darker areas of shadow. HTC is too stubborn to ditch the 4MP Ultrapixel camera and you can find it on the front of the One M9.