An early look at the front and rear design of the One. Even early on, HTC wanted to put dual front speakers on the device with a "laser micro drill."
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HTC One from all angles
The sketches include a look at the phone at various angles, as well as the rear case, which is cut completely out of aluminum.
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The One's 'Diamond Cut' edge
A look at the side profile of the device, with "diamond cut" edges that are reminiscent of the iPhone 5's own chamfered edges.
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The One's camera placement
HTC went through many iterations and ideas on where to put the camera before finally deciding to place it near the top in the center.
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The One's swooping angles
HTC went through a lot of options for the top profile of the One before deciding on a rear case that swoops up as it gets closer to the center. One option included a perfectly flat back.
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The HTC One has a soft curve
HTC looked at how its customers held its phone, and opted for the "soft curve," which it believed would be easier to use.
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The Aluminum unibody construction
HTC boasts that the One features a "zero-gap construction" process that allows the phone to appear as if it's carved out of one sheet of metal. It actually takes more than 200 minutes to cut out and process the front and rear parts of the phone.