There's no physical shutter release button on the device, with the shutter fired instead via the touchscreen, which is a rather strange design decision on such a photographer-friendly smartphone. The HTC One offers 32Gb of built-in memory, with no external memory slot, although it would take a lot of 4 megapixel photos to fill all the available space. The lens is a 28mm equivalent optic with a fast maximum aperture of f/2, alongside which is a small built-in flash that's not particularly powerful. It has a very solidly built unibody design that feels like it should withstand the odd knock or two, although we'd suggest investing in a suitable case to help protect it from scratches. The HTC One is a large but quite light smartphone that just about fits into a trouser or jacket pocket, weighing 143g and measuring 137.4 x 68.2 x 9.3mm. The HTC One is available now in black or silver for around £500 / $575. The HTC One also offers a 4.7 inch Full HD 1080p, 468 PPI touchscreen with Touch AF, 8fps burst shooting, built-in flash, Geotagging, Full 1080p HD videos at 30fps, HDR mode for both stills and video, and the innovative Zoe shooting mode, which takes up to 20 shots and a 3 second video to create a 'living photo' that you can share with friends and family.

HTC's so-called 'UltraPixel' camera features a backside-illuminated sensor with a pixel size of 2.0 µm and sensor size of 1/3-inch, both much bigger than rival smartphones. The HTC One is an Android smartphone with with a 4-megapixel camera and a 28mm equivalent lens with a fast maximum aperture of f/2 and optical image stabilizer.

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