Monday, January 21, 2013

Nokia Lumia 800





GENERAL2G NetworkGSM 850 / 900 / 1800 / 1900
3G NetworkHSDPA 850 / 900 / 1900 / 2100 - RM-819
HSDPA 850 / 1900 / 2100 - For Canada
 HSDPA 900 / 1900 / 2100 - RM-801 CV
SIMMicro-SIM
Announced2011, October
StatusAvailable. Released 2011, November
BODYDimensions116.5 x 61.2 x 12.1 mm, 76.1 cc (4.59 x 2.41 x 0.48 in)
Weight142 g (5.01 oz)
DISPLAYTypeAMOLED capacitive touchscreen, 16M colors
Size480 x 800 pixels, 3.7 inches (~252 ppi pixel density)
MultitouchYes
ProtectionCorning Gorilla Glass
 - Nokia ClearBlack display
SOUNDAlert typesVibration; MP3, WAV ringtones
LoudspeakerYes
3.5mm jackYes
MEMORYCard slotNo
Internal16 GB storage, 512 MB RAM
DATAGPRSClass 33
EDGEClass 33
SpeedHSDPA 14.4 Mbps, HSUPA 5.76 Mbps
WLANWi-Fi 802.11 b/g/n
BluetoothYes, v2.1 with A2DP, EDR
USBYes, microUSB v2.0
CAMERAPrimary8 MP, 3264x2448 pixels, Carl Zeiss optics, autofocus, dual-LED flash, check quality
FeaturesGeo-tagging
VideoYes, 720p@30fps, check quality
SecondaryNo
FEATURESOSMicrosoft Windows Phone 7.5 Mango, upgradable to v7.8
ChipsetQualcomm MSM8255 Snapdragon
CPU1.4 GHz Scorpion
GPUAdreno 205
SensorsAccelerometer, proximity, compass
MessagingSMS (threaded view), MMS, Email, Push Email, IM
BrowserWAP 2.0/xHTML, HTML5, RSS feeds
RadioStereo FM radio with RDS
GPSYes, with A-GPS support
JavaNo
ColorsBlack, Cyan, Magenta, White
 - SNS integration
- Active noise cancellation with dedicated mic
- MP3/WAV/eAAC+/WMA player
- MP4/H.264/H.263/WMV player
- Document viewer/editor
- Video/photo editor
- Voice memo/command/dial
- Predictive text input
BATTERY Non-removable Li-Ion 1450 mAh battery (BV-5JW)
Stand-byUp to 265 h (2G) / Up to 335 h (3G)
Talk timeUp to 13 h (2G) / Up to 9 h 30 min (3G)
Music playUp to 55 h
MISCSAR US1.27 W/kg (head)     1.08 W/kg (body)    
SAR EU0.94 W/kg (head)    


TESTSDisplayContrast ratio: Infinite (nominal)
LoudspeakerVoice 60dB / Noise 59dB / Ring 61dB
Audio qualityNoise -87.3dB / Crosstalk -87.8dB
CameraPhoto / Video
Battery lifeEndurance rating 35h

Software

The Lumia 800 device comes with four Nokia-exclusive applications not included by the default Windows Phone OS: Nokia Drive, a free turn-by-turn navigation system; Nokia Maps;[13] Nokia Music, a free streaming music service and music store; and App Highlights, a service suggesting software based on location and operator. In addition to these applications and services, Microsoft themselves have added Office 365, in which the user can edit documents, create spreadsheets, open PowerPoint presentations, and even make OneNote files. The files created can be stored on Microsoft's SkyDrive cloud service, on the phone itself, and other areas.[14]

[edit]Nokia Collection

In addition to factory-installed Nokia-exclusive Windows Phone applications, the Windows Phone Marketplace contains a Nokia Collection section.[15] As of April 2012, it contains the following additional applications: Nokia Transport, a location-aware public transport schedule and navigation application; Creative Studio, a photo editing application; TuneIn Radio, a local and global radio streaming application; CNN, a news reader and video viewer for the Cable News Network; and WRC Live, an application to follow live timing and media from the FIA WRC series.[16]

[edit]Diagnostic Tool

Just like the Lumia 900, the 800 has the diagnostic tool.
It can be obtained by pressing ##634# on the dial keypad, which should initiate the download after the last # is pressed. The diagnostic tool should appear on the app list under Diagnostics.
On this diagnostic tool, a user can run tests on the following: Accelerometer, ALS, audio loopback, camera, battery status, DTMF, gyroscope, hardware buttons, headset detection, LCD white, lights, life timer, magnetometer, power source, proximity, speaker, touch and vibration. It's also possible to perform all the tests in one run.
Note: This app does not harm the phone, it is an application used by device engineers to test functions of the phone to find whether a certain component is working properly. The app can be uninstalled if a user chooses to do so.[17][18]

[edit]Limitation to WP7

According to Microsoft, due to platform architecture change WP7 phones will not be upgradeable to Windows Phone 8, which will be released in the fall of 2012.[19][20][21] Instead, Microsoft will release Windows Phone 7.8, which will include some WP8 features for existing WP7 phones.[22][23][24]

[edit]Release

The Lumia 800 device was presented along with Lumia 710 by Nokia's CEO Stephen Elop at the Nokia World conference in LondonOctober 2011. In the presentation referred to their devices as 'the first real Windows Phones'.[25]
The London launch was promoted with a massive sound and light show. Nokia and Canadian-based DJ deadmau5 illuminated the banks of the River Thames and the Millbank Tower with a state-of-the-art music and laser show. According to The Daily Telegraph, "The 118 metre building was turned into a canvas for a state-of-the-art light show during which the London skyscraper seemed to buckle and twist".[26][27]

Reported problems

  • On-screen keyboard disappearing during typing. Nokia has addressed the problem with a software fix in the update 8107.[40]
  • Nokia Lumia 800 is claimed to have "sound quality problems" when using low impedance headphones like the supplied ones. Nokia has acknowledged the issue and is working on a fix.[41]
  • Battery life. In December 2011, Nokia confirmed that some Lumia 800 devices do not use the full capacity of their battery.[42] They also state that "only a charger with an output of 1000mA will fully charge your Lumia 800 battery." During 19–20 January 2012, two updates were made available—battery related software update and another of Windows Phone 7.5 Mango build 8107.[43] Nokia has stated that reported issues are fixed with the update and it triples the battery life.[44][45]
  • Problems with camera focus in certain conditions. Nokia has confirmed this and is working on a fix.[46]
  • Daily Mobile reports an issue with screen flickering.[47]
  • Multiple reports of trouble turning device on.[48]

[edit]Connectivity

Like other Windows Phone devices, Lumia 800 uses Microsoft's Zune software on Windows PCs to synchronize user content. For Mac OS X, the device can be synchronized with Windows Phone 7 Connector software. WiFi sync is also available when the phone is charging and connected to the same network as the host PC. Lumia 800 includes the Windows Phone feature of up to 25GB freeSkyDrive storage in Microsoft's cloud service.[37]

Thursday, January 10, 2013

4mobilez: Nokia 808


Nokia 808





ManufacturerNOKIA
Predecessornokia n8
Dimensions123.9 mm (4.88 in) H
60.2 mm (2.37 in) W
13.9 mm (0.55 in) D
Weight169 g (6.0 oz)
Operating system nokia belle Feature Pack 1, upgradeable to nokia BelleFeature Pack 2
CPU1.3 GHz ARM11
Memory512 MB RAM
Storage16 GB on-board memory
Removable storagemicroSD up to 64 GB supported w/ microSDXC support
BatteryLi-Ion; BV-4D 1400 mAh 3.8 V
Display4-inch AMOLED 2.5D curved nHD display
Gorilla glass with easy-clean coating
Rear camera41 Mpx (1/1.2") sensor
Carl Zeiss Optics
F-number: f/2.4
ND filter
Xenon Flash
LED video light
1080p 30 fps video with Continuous AutoFocus
Front camera0.3 Mpx; 480p 30 fps
ConnectivityBLUE TOOTH 3.0
Wi-Fi 802.11 b/g/n
DLNA
Micro HDMI
Micro USB
USB On-The-Go
Secure NFC
3.5 mm audio connector withTV-out
FM TRANSMITTER
GPS with a-gps
Nokia 808 PureView




Pureview Pro camera

PureView Pro is an imaging technology used in the Nokia 808 PureView device. It is the combination of a 1/1.2" large,[7] very high resolution 41Mpix image sensor with high performance Carl Zeiss optics. The large sensor enables pixel oversampling, which means the combination of many sensor pixels into one image pixel. PureView imaging technology delivers high image quality, lossless zoom, and improved low light performance (see below). It dispenses with the usual scaling/interpolation model of digital zoom used in virtually all smartphones, as well as optical zoom used in most digital cameras, where a series of lens elements moves back and forth to vary the magnification and field of view. In both video and stills, this technique provides greater zoom levels as the output picture size reduces, enabling 4x zoom in full HD 1080p video, 6x lossless zoom for 720p HD, and 12x zoom for nHD (640x360) video.
 

Image sensor

PureView Pro sensor has an active area of 7728 x 5368 pixels, totalling over 41 Mpix. Depending on the aspect ratio chosen by the user, it will use 7728 x 4354 pixels for 16:9 images/videos, or 7152 x 5368 pixels for 4:3 images/videos. What happens next depends on the settings and whether or not zoom is used. But to give an idea, the default still image setting is 5 Mpix at 16:9, and for video, 1080p at 30 FPS. Using these settings, the zoom is around 3x for stills and 4x for video. Conventional digital zoom tends to scale up images from a relatively low resolution, resulting in poor image quality.
The image sensor is capable not only of delivering parts of its pixels, but of down- or oversampling its resolution by having its own on-chip image processor, highly reducing external processing needs and data rates as well as image noise (see noise shaping) when lower resolutions (or HD video) are needed. Additionally this provides very high image resolution. Images up to 38 megapixels can be taken at full resolution at 4:3 aspect ratio and 34 megapixels at 16:9 ratio.

[edit]Lens

The optic is a 1-group lens, which is based on a shiftable fixed-focus lens: similar to the highly regarded prime lenses in most Zeiss Planar or Tessar optics, focus is achieved by varying the distance to the image sensor (unit focusing lens). This construction has the advantage that no movable focus group is needed. Considerable movable (focus-range) lens groups need a minimum of one additional adaptive lens element in both the moved group and the stationary group, increasing the number of elements by at least two. This increases unwanted reflections as well as overall tolerances and therefore decreases sharpness.
The lens consists of only 1 group with molded elements, which gives a highly stable, precise mechanical alignment. The lenses are partly made of plastic, which provides sufficient stability at this size and as a 1-group lens and has the significant advantage of making it possible to use extreme aspheric shaped lens elements.[8]
5 all-aspherical lens elements are used, making it possible to increase border-sharpness and lower distortion and astigmatism. The high refractive index, low-dispersion glass additionally helps reduce chromatic aberrations. A neutral density filter with approximatelyND8 (3 f-stops) is employed for shooting in high light levels where normally a smaller aperture would be set. Although the lens is named a Tessar, it has almost nothing in common with the 4 element in 3 group, non-aspherical original Tessar.
Due to the comparatively large image sensor format of 1/1.2" and the comparatively fast lens with f/2.4, the camera has a quite shallowdepth of field of equivalent to approximately f/7.8 at 26 mm[10] on 35 mm full-frame.

[edit]Zoom

Zoom is digital but retains a high resolution due to the 41Mp sensor. The limit of the zoom is reached when the selected output resolution becomes the same as the input resolution. That means once the area of the sensor reaches 3072 x 1728, the zoom limit is reached. So the zoom always provides the true image resolution the user wants. The level of pixel oversampling is highest when zoom is not used. It gradually decreases until the maximum zoom is hit, where there is no oversampling. At this stage, PureView Pro optics and pixels start behaving in a more conventional way. But because only the centre of the optics is used, the best optical performance is achieved – including low distortion, no vignetting and highest levels of resolved detail. This also means that at full digital zoom, the noise reduction achieved by oversampling (pixel binning) is lost as no oversampling happens at full zoom.

[edit]Autofocus

PureView Pro features continuous auto focus in all shooting modes, close-up (Macro) focus, Face detectionTouch focus with easy manually selected focus point and Hyperfocal distance focus for defined depth of field, for extreme focus speed or when no reliable focus is possible due to darkness.

[edit]Video

The on-chip oversampling image processor of PureView Pro enables oversampling of all 38Mega-pixels even at the high video data rates of 1080p with 30 fps. Full HD 1080p gives 4x zoom; 720p HD video, 6x lossless zoom; and for nHD (640x360) video, 12x zoom. In addition, encoding is up to 25Mbps in 1080p H.264/MPEG-4 HD video format. The PureView Pro sensor integrates a special video processor that handles pixel scaling before sending the required number to the main image processor.

[edit]Audio

The 808 PureView employs Dolby Headphone software to transform stereo content to surround via 3.5mm A/V jack. It also includes Dolby Digital Plus software to provide 5.1 surround sound via HDMI or DLNA. The dual software from Dolby are embedded into the Nokia Belle feature pack 1 OS.
The 808 PureView is the first device to include the Nokia Rich Recording technology and has a frequency range between 25 Hz to around 19 kHz. The 808 PureView can capture sounds at the loudness level of 145 decibels without distortion. The two microphones, located at the top and the bottom enable ambient stereo recording. The audio encoding is done in AAC high profile, 128 kbit/s, 48000 Hz