The Lumia 955 runs with Windows PRT, the next Windows for ARM based phones, tablets and phablets. Instead of Windows Phone and Windows RT there is only Windows PRT from now on. It allows higher display resolutions, devices with on-screen virtual buttons and better support for new technology. More features like using a digital ink on a phone or phablet and much more options for customization (more colors, more tile sizes etc.) are also included. Additionally Windows PRT contains a Notification Corner, which gives the user an overview on settings and current releases such as messages, e-mails, updates or events. The integrated desktop environment (new function: run apps in the X Window mode) of Windows RT will also be available to phones and phablets. Furthermore Windows PRT allows you to use your phone, tablet or phablet as a computer (requirements: docking station, external display, keyboard and mouse). Windows PRT is the possibility of using mobile devices as an efficient tool for everyday office work.
The Lumia 955 is made on the Nvidia Tegra 4 chipset, 2 GB DDR3-RAM, 5.5″ PureMotion HD++ ClearBlack Super-Sensitive display with 1440 x 2560 pixels (538 ppi) and it houses a 3.600 mAh replaceable battery, which can be charged wirelessly. Moreover it has USB 3.0, Mini Display Port Video, Wi-Fi (802.11a/b/g/n), Bluetooth 4.0 connectivity, LTE 4G, NFC, A-GPS + Glonass, HD front camera with 3 megapixels wide angle and 32.3 MP PureView camera with Optical Image Stabilization (OIS), Backside-illuminated image sensor, 6 lens optics, High resolution zoom 3x, Autofocus, Xenon Flash, LED for video and 1080p video at 30 fps. The built-in sound chip and the stereo speakers come from 'Monster Cable Products' and they are a new part of Nokia Purity series. So you can enjoy big sound from your Lumia. The device comes with 32 GB, 64 GB or 128 GB of internal memory. Additionally it has a MicroSDXC slot for optional memory expansion.
The special feature is the digital ink stylus with highly precise pen inputs (1024 levels of pressure sensitivity), which allows you to take notes, sketches etc.
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