Screen and input
nokia n900
nokia n900 front
nokia n900 front full
nokia-n900 full view
nokia-n900 full view side
The Nokia N900 has a 3.5-inch (89 mm) resistive touchscreen with a resolution of 800 × 480 pixel (WVGA, 267 ppi). According to both Nokia and the Xorg.log, it is capable of displaying up to 65k colours (565 RGB).[37] The LCD is transreflective to permit usability over a wide range of luminosity (from daylight to dark). Haptic feedback is provided to touchscreen input by applying a small vibration or a sound; the user can choose whether to have this feature enabled.[38] A stylus is provided to allow more precise touch input and access to smaller user interface elements. A 3-axis accelerometer allows the orientation of the screen to change between portrait and landscape mode in certain applications, or it can be used as user input in games and applications.[39] While the dashboard or desktop is active, rotating the device from landscape to portrait mode activates the phone application (a feature that can also be disabled at user discretion).[40] With update PR1.2, It became possible to view web pages in portrait mode.[41] Developers may add support for portrait mode in their applications if desired.[40][42] There is a proximity sensor which deactivates the display and touchscreen when the device is brought near the face during a call.[43]
The slide-out 4-row keyboard and D-pad of the Nokia N810 have been replaced on the Nokia N900 with a slide-out 3-row backlit keyboard with arrow keys (as with previous Internet Tablets, an on-screen keyboard is also available). In addition to the English QWERTY layout, the slide out keyboard will be available in variants for Italian,[44] French,[45] German,[46] Russian,[47] Czech,[48] Nordic (Finnish, Swedish),[49][50] and Spanish. The Nokia N900 has an ambient light sensor that adjusts the display brightness and activates the backlit keyboard.[51] The OS comes with a word prediction software that can be configured to the user preferences (auto capitalization, word completion, auto spacing between words).[52]
The device has an autonomous GPS with optional A-GPS functionality and comes pre-loaded with the Ovi Maps application. Ovi Maps provides typical mapping features such as alternate views (3D landmarks, satellite, and hybrid maps), address/places of interest searching, and route planning, although it does not have turn-by-turn navigation as of yet.[53][54]
The 5 megapixel camera on the back of the Nokia N900. The hatch is open. The tilt stand is seen surrounding the camera.
The 5 megapixel back camera has an autofocus feature, dual LED flash, 4:3 and 16:9 aspect ratio options, and 3× digital zoom. The focal length of this camera is 5.2 mm, the aperture is f/2.8, and the focus range is 10 cm to infinity.[4] It is capable of video recording at up to 848 × 480 pixels at 25 fps. The lens, while not in use, is protected by a sliding hatch. Opening the hatch launches the camera application. Although the 0.3 megapixel front camera is capable of video recording at up to 640 × 480 pixels[4] and pre-production units could be used for video calls over IP using Google Talk,[55] the retail version was delivered without any software enabling video calling or video chatting.[56] In update PR1.2 OTA (over-the-air) Skype video calling was added, enabling the fascia camera.[41]
Buttons
When holding the device facing the screen; on the top, from left to right, rocking buttons (which function as volume up/down or zoom in/out depending on the context), power on/off and camera button. Pressing the power button brings up a menu to change the profile, activate offline mode (a.k.a "Airplane or Flight mode", which turns off all emitted signals), Lock Device (either "Secure" with key code, or simple lock),[57] and an option to end the current task.
As the Nokia N900 has fewer hardware buttons, it makes use of the touchscreen to display on-screen buttons, for example, to accept, reject and end a call.
