One of the main points that differentiate the Lumia 640 XL from its predecessor the Lumia 640 is its substantially larger screen. One model that interests us here indeed offers a diagonal of 5.7 “, which places it automatically in the category of phablets. For the rest, the same characteristics as it is a technology display IPS ClearBlack Display with a resolution of 1280 x 720 PPI. Inevitably, that this definition does not progress between the two models leads to a density of only 259 pixels per inch for the XL 640, against 294 dpi to 640. If this density would have clearly benefited from being higher on a screen of this size, the report remains very correct.
We also note that the screen is covered with a glass Gorilla Glass 3, which gives it greater resistance in theory than in practical. Not surprisingly, we find here the same user interface as that found on the Lumia 640. Moreover, it is also the one that animates all Lumia smartphones. The Lumia 640 XL, therefore, turns to the rhythm of Windows Phone 8.1, in its version “Denim”. All shows classic for Windows.
The Windows Phone OS does not require a racing order to function correctly. Which falls rather well since, between its older 400 chipset Qualcomm Snapdragon, Adreno 305 graphics chips and its unique GB of RAM, the Lumia 640 XL clearly does not pay mine. Yet all turns to perfection without micro lag or slowdown. What makes the camera really fun to use every day. The maximum brightness turns out good enough contrast (326 cd / m²). As for the color temperature (7082 K), it proves quite close to the ideal score (6500 K), while indicating a slight tendency to pull to blue; but only the sharp eyes perceive. Finally, the touch delay is very good, since it was measured at 60 ms. Visit the Crazydeals.com to get the best Lumia 640 XL price in UAE.