![]() The smartphone supports GPS, Glonass, and BeiDou. Another 2 meters and through another wall, web browsing is significantly slower. The reception quality is modest: 10 meters from the router and through three walls the signal quality dropped to 1/4, although pages still load comparatively quick. To connect to wireless networks the Lumia 640 only supports the 2.4 GHz band and the standards 802.11 b/g/n. The maximum transfer speed is 42.2 MBit/s for downloads and 5.76 MBit/s for uploads. ![]() Only the LTE version of the Lumia 640 has NFC on board, but at least the new model can connect to a larger number of networks than the predecessor: the review smartphone supports four GMS and four UMTS networks total. ![]() A few add-based applications are part of the package as well, but they are - at least compared to Android - quite easy to uninstall.Īt the time of writing, Microsoft also includes one year of Office 365 and a photoplus-subscription for 3 months. There's also an enhanced photo app, free navigation software, and the fitness application Fibit. We would like to see a more automated adjustment process here or just simply a less crowded start screen in the first place.Īs common for Lumia phones, many additional apps are included free of charge: MixRadio streams music for free - including not only artists currently topping the charts, but also classic bands like "Abba" or Indie bands like "Arcade Fire". Windows phones with smaller displays allow for adjusting the number of columns, but in this case, individual tiles have to be selected manually to magnify them. Starting with screens 5 inches and up, the software automatically displays 6 columns of tiles on the home screen, which leads to small icons and a display that is somewhat crowded with differently colored tiles and flashing Live Tiles. The feature "Glance Screen" shows the time and notification symbols even when the she screen is off, so the user doesn't have to turn on the smartphone to check the clock, for example. Lumia Smartphone offers a multitude of additional options and various preinstalled apps enable functions that other Windows phones simply lack. The Lumia 640 happens to be the first smartphone to ship with Windows Phone 8.1 Update 2 (GDR2), which brings along a few changes. The smartphone is 8.8 mm high, which is a bit thicker than the other smartphones mentioned.Īlthough Windows Phone 8.1 will be superseded by Windows 10 shortly, the current version of the mobile OS offers a clean interface and quite a few features. Most likely that's the price to pay for the enormous versatility offered by the removable cover.Īt 145 g, the Lumia 640 is right about average as far as weight is concerned: not quite as heavy as Samsung's Galaxy Grand Prime (156 g), but also not as feather-light as the Trekstor WinPhone 4.7 HD (97 g). ![]() Another characteristic impacting the positive impression is the fact that the cover and the body move against each other when torsional forces are applied. Pressing on the display does lead to distortions and audible creaks as well. The design is simple, but looks upscale and classy just because of it. Most will be familiar with this feature, as the previous owner Nokia has offered this option for their phones for decades. Since the cover encompasses most of the case, swapping it out allows the user to update the look of his or her smartphone. As before, the cover is quite easy to remove and gives access to the two SIM slots and the battery. The covers feature a slight two-tone design just like before, but the scheme is more reserved in nature compared to the Lumia 620. Black and white are for users who prefer a more conservative design. In a fashion typical for Lumia phones, the 640 is available in rather bold colors with orange as the most vivid and cyan blue as a slightly more muted option.
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