With the announcement of the Lumia 925, Nokia has updated and improved upon a few aspects of its relatively well-received Lumia 920. With an aluminum and polycarbonate body, it's significantly thinner than its predecessor, which was seen by many as unwieldy when compared to its contemporaries. Indeed, at 8.5mm thick (compared to 10.7mm for the Lumia 920), the 925 can be mentioned in the same breath as Verge-favorite the HTC One (9.3mm at its thickest point), along with the iPhone 5 (7.6mm) and Galaxy S 4 (7.9mm).
The new materials and thinness help the Lumia 925 trim its weight down to just 135 grams, a massive 25 percent reduction from the Lumia 920, and in line with other large phones like the HTC One, Galaxy S4, and Xperia Z. It's of course quite a bit heavier than the iPhone 5, but with a 4.5-inch display compared to the iPhone's 4-inch unit, it's a slightly unfair comparison — that extra weight is distributed across a far larger surface.
About that display: it's a 1280 x 768 OLED as found in Verizon's Lumia 928, rather than the LCD in the Lumia 920, but Nokia is still using its ClearMotion branding, which in the case of the 920 meant an improved refresh rate over other LCDs. It also benefits from what Nokia calls "Super Sensitive Touch" — the company's name for touchscreen tech that allows users to interact with the phone even with gloves on. Samsung's Galaxy S4 has a similar party trick, while the HTC One, iPhone 5, and others require you to take those gloves off or score a fashion faux pas.
Some of the Lumia 920's party tricks are now in other phones as well
The final improvement Nokia has made with the Lumia 925 is the camera. Nokia has added an extra glass lens element that it says will improve quality over the 920's already-excellent camera, but it hasn't added a Xenon flash as found in its Verizon-bound Lumia 928. It has, however, got the same optically-stabilized lens as the Lumia 920 and 928, which should give the phone the edge over the iPhone 5 and Galaxy S4 in low-light conditions. The HTC One uses a different technique to similar effect, so we'll have to wait for a chance to compare the cameras side-by-side to see which is best.
All told, the Lumia 925 represents an evolution over previous Lumias, with the same dual-core 1.5GHz processor, 1GB of RAM, and non-1080p display as other Windows Phones still holding it back slightly compared to high-end Androids. That said, the improvements should help keep Nokia competitive with the best Android and iOS has to offer; we'll have to see how it performs in everyday use to make a full judgement.