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With the shared unveiling of Nokia's Lumia 720 and Lumia 520, the company's running flush of Windows Phone 8 models was complete. All WP8 handsets we've reviewed essentially fit into two distinct tiers based on shared core specs. That begs the question: why come out with two new models now when both share the same SoC, amount of RAM and screen resolution as the established Lumia 620 and HTC 8S? Obviously, there are differences in design, cameras, display tech and all the other bobs and bits that create the 720, but is it worth the significant markup over the 620, and more than double the price of a 520 or Huawei Ascend W1? Enough with all the rhetorical questions -- join us after the break as we find out exactly what the Lumia 720 has to offer.
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We've taken quite a liking to the design philosophy Nokia has carried through its Windows Phone 8 range to date, and the 720 is further proof the company has a good eye. A simple, clean rectangle, the handset measures 127.9 x 67.5 x 9mm (5.04 x 2.65 x 0.35 inches), making it one the thinnest WP8 offerings. It shares obvious traits with HTC's 8X and Huawei's Ascend W1, which have the same sharp angles that feel like a tangible manifestation of Microsoft's Live Tile UI. While its hard lines give the 720 an air of sophistication, Nokia hasn't forgotten to add that playful Lumia flair. The round edges of the device balloon ever so slightly from the single piece of sculpted Gorilla Glass 2 that covers the entire front face, before tapering inwards to the flat back. The corners, sides and back are all one piece of polycarbonate, which in our case was red. Well, mostly red -- it has a nice two-tone effect (albeit subtler than the 620's "dual-shot color" shells) that causes it to glow with more of an orange hue when brightly lit. There are also models bearing the other familiar Lumia colors of cyan, yellow, white and black, but here in the UK, the 720's currently exclusive to O2 in red (although our review handset came unlocked from Nokia.)

Nokia hasn't forgotten to add that playful Lumia flair.
Those rounded edges serve as a buffer to the sharp overall aesthetic and, along with the flat back, make for a really comfortable hold. The grippy polycarbonate shell helps keep it anchored in the palm, and at 128 grams (4.5 ounces), it's deceptively light for such a solid-feeling handset. It may not be forged from metal, but build quality is robust and gives the 720 a premium vibe. In terms of footprint, the 720 is just shy of matching Samsung's Galaxy S III, despite having half an inch less of display on the diagonal. That said, the 720 doesn't look or feel like bloated hardware around a small screen -- there isn't an excess of bezel to the left or right of the panel and all other space is allotted proportionally. Also, your thumb won't have any trouble getting where it needs to go.

Now, gather round for the tour. Joining the 4.3-inch display under the Gorilla Glass 2 sheet that consumes the 720's face are the standard back, home and search capacitive keys. Above the screen, you'll find a small, grey Nokia logo below the earpiece, with the 1.3-megapixel front-facing camera just to the left. The bottom edge is home to a micro-USB port and mic, while the left side is bare apart from the microSD drawer at the earpiece end. On the top edge are a 3.5mm headphone socket and another drawer for the micro-SIM, with the volume rocker, power button and two-stage camera button in Nokia's standard layout on the right-hand side.