A mobile phone (also called mobile, cellular telephone, or cell phone) is an electronic device used for two-way radio telecommunication over a cellular network of base stations known as cell sites. Mobile phones differ from cordless telephones, which only offer telephone service within limited range through a single base station attached to a fixed land line, for example within a home or an office.

iPhone 4 Technical Specifications

Size and weight1

4.5 inches (115.2 mm)
2.31 inches (58.6 mm)
0.37 inch (9.3 mm)
4.8 ounces (137 grams)

Cellular and wireless

  • GSM model: UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz)
  • CDMA model2: CDMA EV-DO Rev. A (800, 1900 MHz)
  • 802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
  • Bluetooth 2.1 + EDR wireless technology


  • Assisted GPS
  • Digital compass
  • Wi-Fi
  • Cellular

Power and battery3

  • Built-in rechargeable lithium-ion battery
  • Charging via USB to computer system or power adapter

  • Talk time:
    Up to 7 hours on 3G
    Up to 14 hours on 2G (GSM model only)

  • Standby time: Up to 300 hours

  • Internet use:
    Up to 6 hours on 3G
    Up to 10 hours on Wi-Fi

  • Video playback: Up to 10 hours

  • Audio playback: Up to 40 hours

Mac system requirements

  • Mac computer with USB 2.0 port
  • Mac OS X v10.5.8 or later
  • iTunes 10.1 or later (free download from
  • iTunes Store account
  • Internet access

Windows system requirements

  • PC with USB 2.0 port
  • Windows 7; Windows Vista; or Windows XP Home or Professional with Service Pack 3 or later
  • iTunes 10.1 or later (free download from
  • iTunes Store account
  • Internet access

Environmental requirements

  • Operating temperature: 32° to 95° F
    (0° to 35° C)
  • Nonoperating temperature: -4° to 113° F
    (-20° to 45° C)
  • Relative humidity: 5% to 95% noncondensing
  • Maximum operating altitude: 10,000 feet (3000 m)


  • 16GB or 32GB flash drive


  • Retina display
  • 3.5-inch (diagonal) widescreen Multi-Touch display
  • 960-by-640-pixel resolution at 326 ppi
  • 800:1 contrast ratio (typical)
  • 500 cd/m2 max brightness (typical)
  • Fingerprint-resistant oleophobic coating on front and back
  • Support for display of multiple languages and characters simultaneously

Audio playback

  • Frequency response: 20Hz to 20,000Hz
  • Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV
  • User-configurable maximum volume limit

TV and video

  • Video formats supported: H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
  • Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)

Up is available on iTunes. Up © Disney/Pixar.


  • Language support for English (U.S.), English (UK), French (France), German, Traditional Chinese, Simplified Chinese, Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese, Russian, Polish, Turkish, Ukrainian, Hungarian, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malay, Romanian, Slovak, Croatian, Catalan, and Vietnamese
  • Keyboard support for English (U.S.), English (UK), French (France), French (Canadian), French (Switzerland), German, Traditional Chinese (Handwriting, Pinyin, Zhuyin, Cangjie, Wubihua), Simplified Chinese (Handwriting, Pinyin, Wubihua), Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese (Romaji, Ten Key), Japanese (Kana), Russian, Polish, Turkish, Ukrainian, Estonian, Hungarian, Icelandic, Lithuanian, Latvian, Flemish, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malay, Romanian, Slovak, Croatian, Bulgarian, Serbian (Cyrillic/Latin), Catalan, Vietnamese, Tibetan, Macedonian, and Cherokee
  • Dictionary support (enables predictive text and autocorrect) for English (U.S.), English (UK), French, German, Traditional Chinese, Simplified Chinese, Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese (Romaji), Japanese (Kana), Russian, Polish, Turkish, Ukrainian, Hungarian, Lithuanian, Flemish, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malaysian, Romanian, Slovak, Croatian, Catalan, Vietnamese, and Cherokee

Nokia N8 Touch Smartphone – Price Rs 23,499, Wi-Fi, GPRS, 48GB

Nokia N8 smartphone intuitively connects to the people, places and services that matter most. With the Nokia N8, people can create compelling content, connect to their favorite social networks and enjoy on-demand Web TV programs and Ovi Store apps. The N8 is also the world’s first True GSM world phone as it will run on virtually any GSM network across the globe, Whether 2G or 3G. The retail price of the Nokia N8 in India is approximately Indian Rupees 35,000 25259
. 23,499(updated on 3-Dec-2010).
The Nokia N8 introduces a 12 mega pixel camera sensor with Carl Zeiss optics. The Xenon Flash allows you to take good pictures in low-light conditions as well.
Additionally, the Nokia N8 offers the ability to make HD-quality videos and edit them with an intuitive built-in editing suite. The Nokia N8 features an HDMI Connection so you can easily show off your images, videos and music on compatible televisions and projectors. It also features premium-quality Dolby Digital Plus technology compatible with home theater systems.
The Nokia N8 enables access to Web TV services that deliver programs, news and entertainment from channels like CNN, E! Entertainment, Paramount and National Geographic. Additional local Web TV content is also available from the Ovi Store. With N8, you can edit and perfect your high-definition masterpieces, then share them with the world. Add music, images, text and transitions all from the phone.
Social networking is second nature to the Nokia N8. People can update their status, share location and photos, and view live feeds from Facebook and Twitter in a single app directly on the home screen. Calendar events from social networks can also be transferred to the device calendar.
Personalize your phone by adding your own Widgets. Not one but three live home screens -- make one for work, use one for fun, and have one with your favorite picture as the wallpaper. Swipe between the home screens with an easy gesture. Download more widgets from Ovi Store.
Voice-Guided Navigation wherever you are in the world. Absolutely free. Simply enter where you want to go and Ovi Maps with voice guidance will tell you how to get there, turn by turn. You can browse smoothly through all your favourite albums and once again get thrilled by the album artwork. Re-experience your record collection for over 50 hours straight.

Hear voice-guided navigation from Ovi Maps conveniently through the Nokia Bluetooth Headset BH-608, Or go all out and make your flight a pleasure with the Nokia Bluetooth Stereo Headset BH-905 with eight microphones for canceling up to 99% of background noise.
The Nokia N8 comes with free global Ovi Maps walk and drive navigation, guiding people to places and points of interest in more than 70 countries worldwide.
Powering the Nokia N8 is Symbian ^3, the latest edition of the world’s most used smartphone software, which introduces several major advances, including support for gestures such as multi touch, flick scrolling and pinch-zoom. The Nokia N8 also offers multiple, personalizable home-screens which can be loaded with apps and widgets. The new 2D and 3D graphics architecture in the platform takes full advantage of the Nokia N8′s hardware acceleration to deliver a faster and more responsive user interface.  Symbian^3 also raises the bar in performance by delivering greater memory management allowing more applications to run in parallel for a faster multi-tasking experience.
The Nokia N8 is Nokia’s first device to be integrated with Qt, a software development environment that simplifies the development and makes it possible to build applications once and deploy across Symbian and other software platforms. Nokia has also made the powerful and simple to use Nokia Qt SDK available, in its initial beta, to enable developers to start realizing the potential of Qt.



  • Size: 113.5*59*12.9 MM
  • Weight (with Battery): 135 Grams

Display and user interface

  • Screen size: 3.5″
  • Resolution: 16:9 nHD (640*360 pixels) AMOLED
  • 16.7 million colors
  • Capacitive Touch Screen
  • Orientation sensor (Accelerometer)
  • Compass (Magnetometer)
  • Proximity sensor
  • Ambient light detector

Keys and Input Methods

  • Physical Keys (Menu key, Power key, Lock key, Volume keys and Camera key)
  • Finger Touch support for text input and UI control
  • On-screen alphanumeric keypad and full keyboard
  • Dedicated camera and volume keys
  • Possibility to use capacitive stylus
  • Handwriting recognition for Chinese


  • Anodized aluminium casing, available in: Silver-white, Dark grey, Orange, Blue and Green


  • Up to three customizable home screens: Widgets, Themes, Shortcuts, Icons and Menu
  • Customizable profiles
  • Ring tones: mp3, AAC, eAAC, eAAC+, WMA, AMR-NB and AMR-WB
  • Video ring tones
  • Themes: Wallpapers, Screen savers, Audio Themes, Pre-Installed Themes, Changeable Colour Themes

Power Management

  • BL-4D 1200 mAh Li-Ion battery
  • Talk-time (maximum): GSM 720 Mins, WCDMA 350 Mins
  • Standby time (maximum): GSM 390 Hours, WCDMA 400 Hours
  • Video playback time (H.264 720p, 30 fps, maximum): 6 Hours (via HDMI to TV)
  • Video recording time (H.264 720p, 25 fps, maximum): 3 Hours 20 Mins
  • Video call time (maximum): 160 Mins
  • Internal memory: 16 GB music playback time (off-line mode, maximum): 50 Hours


  • Internal memory: 16 GB
  • MicroSD memory card slot, hot swappable, up to 32 GB

Operating Frequency

  • GSM/EDGE 850/900/1800/1900
  • WCDMA 850/900/1700/1900/2100
  • Automatic switching between WCDMA and GSM bands
  • Flight Mode

Data Network

  • GPRS/EDGE Class B, Multi-slot Class 33
  • HSDPA Cat9, maximum speed up to 10.2 Mbps, HSUPA Cat5 2.0 Mbps
  • WLAN IEEE802.11 b/g/n
  • TCP/IP support
  • Capability to serve as Data Modem
  • Support for MS Outlook synchronization of contacts, calendar and notes
Nokia N8_bottom


  • Bluetooth 3.0
  • HDMI
  • 2 MM Charging connector
  • Micro USB connector and charging
  • High-Speed USB 2.0 (micro USB connector)
  • USB On-the-Go
  • 3.5 MM AV Connector
  • FM Radio
  • FM Transmitter

Software Platform and User Interface

  • Symbian ^3 for Nokia
  • Java MIDP 2.1
  • Qt 4.6.2, Web Runtime 7.2
  • HTML 4.1
  • Software updates Over the Air (FOTA) and Over the Internet (FOTI)
  • Flash Lite 4.0
  • OMA DM 1.2, OMA Client provisioning 1.1

Personal Information Management

  • Detailed contact information
  • Calendar
  • To-do list
  • Notes
  • Recorder
  • Calculator
  • Clock


  • Key applications: Calendar, Contacts, Music Player, Internet, Messaging, Photos, Ovi Store, Maps, Videos, WebTV, Office Document Editors, Video and Photo Editor, Mail, Chat and Radio
  • PC Applications: Nokia Ovi Suite and Nokia Ovi Player

E-Mail and Messaging

  • Easy-to-use email client with attachment support for images, videos, music and documents (.doc, .xls, .ppt, .pdf, .zip).
  • HTML support for E-Mail
  • Unified E-Mail client for multiple protocols: Yahoo! Mail, Gmail, Windows Live, Hot mail and other popular POP/IMAP services, Mail for Exchange, IBM Lotus traveler
  • Editing of key office documents
  • E-Mail web widget for Home Screen
  • Chat Instant Messaging support: OVI Chat, Yahoo, AIM, Windows Live, Gtalk and MySpace
  • Unified MMS/SMS editor
  • Conversational view for SMS
  • Push E-Mail and expanded portal support available through Nokia Messaging for Email and Instant Messaging

Call Management

  • Contacts: advanced contacts database with support for multiple phone and E-Mail details per entry with personal thumbnail pictures and video clips
  • Smart dialling to find phone numbers quickly
  • Speed dialling, voice dialling (speaker independent) and voice commands
  • Logs of Dialled, Received and Missed calls
  • Conference calling
  • Integrated Hands-free speaker
  • Video calling

Browsing and Internet

  • Full web browsing of real web pages
  • Web browsing with Touch control
  • Supported markup languages: HTML, XHTML MP, WML and CSS
  • Supported protocols: HTTP v1.1 and WAP
  • TCP/IP support
  • Visual history, HTML and JavaScript support
  • Flash Lite 4 will support a majority of Flash Player 10.1 content
  • Nokia Mobile Search
  • RSS reader
  • Support for streaming video

GPS and Navigation

  • Integrated GPS and A-GPS receivers
  • Ovi Maps with free car and pedestrian navigation
  • Wi-Fi Positioning
  • Compass and accelerometer for correct orientation of display
  • Use Nokia Ovi Suite to get the latest country maps for Ovi Maps on N8 for free
Nokia N8_back


  • 12 Mega Pixel camera with Carl Zeiss optics
  • Large 1/1.183″ optical format image sensor
  • Full-screen 16:9 viewfinder with easy-to-use Touchscreen parameters
  • Xenon flash with automatic red-eye removal
  • Face recognition software
  • Auto Focus
  • Focal length: 5.9 mm (equivalent to 28mm in 35mm film format)
  • F number/Aperture: F2.8
  • Still images file format: JPEG/EXIF
  • Zoom up to 2X (digital) for still images
  • Zoom up to 3X (digital) for video
  • Secondary camera for video calls (VGA, 640 x 480 pixels)
  • Favourite settings feature
  • Still camera manual controls for white balance, scene mode, exposure compensation, colour tone, viewfinder framing grid, sharpness, contrast, flash control, light sensitivity (ISO), self-timer, face detection

Image Capture

  • Automatic location tagging (Geo-tagging) of images and videos
  • Images automatically taken in the correct orientation
  • Pinch zoom in Photos image viewer
  • View photos by tag cloud, month, album, slide show
  • Photo Editor
  • On-line Share with connectivity to popular sharing services


  • Internal memory: 16 GB
  • MicroSD memory card slot, hot swappable, up to 32 GB
  • High-Speed microUSB to PC connectivity

Video Cameras

  • Main Camera: 12 mega pixel with Carl Zeiss optics, HD quality 720p resolution and Shoot 16:9 videos in HD, 3x digital zoom
  • Video capture in 720p 25 fps with codecs H.264, MPEG-4
  • Ambient stereo audio recording in video (AAC 128kbps, 48 kHz sampling) plus new algorithms to reduce wind noise and control recording level in harsh environments
  • Settings for low light (reduced frame rate), video light, white balance, colour tone
  • Secondary camera VGA for video calls

Video sharing and playback

  • HD 720p Video playback on HD TV through HDMI cable
  • Dolby Digital Plus surround sound when played with HDMI and a Home Theatre
  • Support for download, streaming, and progressive download
  • Video Editing Software
  • Videos application: collection of stored videos
  • On demand WebTV widgets to watch local and global Internet streaming TV
  • Support for Flash video
  • YouTube browsing and streaming
  • Video call support (WCDMA network services)

Video Codecs and Formats

  • H.264 (base profile, main profile, high profile), MPEG-4, VC-1, Sorenson Spark, Real video 10
  • Streaming: H.264, Flash Lite 4 (Flash 10 compatibility for video), On2 VP6, Sorenson Spark

Music features

  • Flick scroll to browse the albums in your music collection
  • Comes with Music service on selected markets
  • Nokia Music Player
  • Ovi Music store
  • Music codecs: .MP3, WMA, AAC, eAAC, eAAC+, AMR-NB and AMR-WB
  • Bit rate up to 320 kbps
  • DRM support WM DRM, OMA DRM 2.0
  • FM Transmitter


  • Stereo FM radio (87.5-108 MHz/76-90 MHz)


  • Use the Touch UI to play Games
  • Dedicated graphics processor with OpenGL 2.0 enables 3D graphics
  • Java Games
  • Use the accelerometer to play games

Energy Efficiency

  • Power Save mode, ambient light sensor, unplug charger reminder, high efficiency Nokia Compact Travel Charger AC-15


  • Free of PVC, nickel free on the product surface and brominated and chlorinated compounds/brominated compounds and chlorinated flame retardants, antimony trioxide


  • Made of renewable, 100 % recyclable

Eco Content and Services

  • Reduced size printed user guide in the sales package, full user guide in the device memory and web Maps for route optimization and pedestrian navigation


  • Device is up to 80 % recyclable

User Manual

  • Reduced size printed user guide in the sales package, full user guide in the device memory and web

Nokia N8_frontStandard Sales Package

  • Nokia N8 Mobile Computer
  • Nokia Battery BL-4D
  • Nokia Connectivity Cable CA-179
  • Nokia Stereo Headset WH-701
  • Nokia Compact Travel Charger AC-15
  • Nokia Adapter Cable for HDMI CA-156
  • Nokia Adapter Cable for USB OTG CA-157
  • Nokia Stylus SU-36 (selected markets only)
  • Quick start guide

Recommended Accessories

  • Nokia Bluetooth Stereo Headset BH-905
  • Nokia Stylus SU-36
  • Nokia Bluetooth Headset BH-608
  • Nokia Bluetooth Stereo Headset BH-505
  • Nokia Extra Power DC-11
  • Nokia Mini Speaker MD-9

Sony Ericsson XPERIA X10 – Android mobile

Sony Ericsson XPERIA X10

Sony Ericsson XPERIA X10
The new Sony Ericsson XPERIA X10 is a flagship mobile from Sony Ericsson running the Android OS and featuring 32GB internal memory,1GHz Snapdragon processor,4.0-inch capacitive touchscreen, and Rachael User Interface.
Sony Ericsson XPERIA X10 (2)
The key features of the Sony Ericsson XPERIA X10 mobile are :
  • 2G Network:GSM 850 / 900 / 1800 / 1900
  • 3G Network:HSDPA 900 / 2100
  • Dimensions:116 x 62 x 12 mm
  • Display:4- inches TFT capacitive touchscreen, 16M colors,852 x 480 pixels
  • Rachael user interface
  • Accelerometer sensor
  • 3.5 mm audio jack
  • Memory Internal:1GB storage, 256MB RAM
  • Card slot:microSD (TransFlash) up to 8GB
  • 3G:HSDPA, 10.2 Mbps; HSUPA, 2 Mbps
  • WLAN:Wi-Fi 802.11b/g, DLNA
  • Bluetooth v2.1 with A2DP
  • USB v2.0 miniUSB
  • Camera:8 MP, 3264×2448 pixels, autofocus, LED flash,Touch focus, geo-tagging, face detection
  • OS:Android OS
  • CPU:Qualcomm QSD8250 Snapdragon 1 GHz processor
  • FM Radio
  • GPS with A-GPS support
  • MP4/ H.263/ H.264/ WMV player
  • MP3/ e-AAC+/ WMA/ RA player
  • Google Search, Maps, Gmail,
  • YouTube, Calendar, Google Talk
  • Standard battery, Li-Po 1500 mAh (BST-41)
Sony Ericsson XPERIA X10 (1)




The rumors were true: Samsung unveiled the Galaxy Tab 10.1 today at its Unpacked event in Barcelona. Running Android Honeycomb (also known as Android 3.0), the latest Tab sports a 10.1-inch LCD display with a resolution of 1280 by 800 pixels. The Tab 10.1 joins Samsung's arsenal of Android devices including the original 7-inch Galaxy Tab and the Galaxy S II smartphone, which was also announced tonight.
I got a chance to play with the Galaxy Tab 10.1 briefly at the event and I have to say, I really like the larger size. Recently at another press event I tried to take notes with the 7-inch Galaxy Tab and found it a bit awkward and small for my liking. The Galaxy Tab 10.1 handles very nicely. It is lightweight (lighter than the 25-ounce Motorola Xoom at 21 ounces), thin (a mere 0.44 inches) with a nice textured back.
Samsung's phones generally have textured backs, which I always appreciate because it not only gives them a unique look, but it also makes the phones easier to grip. It makes even more sense in the tablet world. I found that I could comfortably hold it in one hand (and my hands are small) and type out a quick message with the other without feeling like I was going to drop it.
Like the Motorola Xoom and the LG G-Slate, the Tab 10.1 is powered by an Nvidia Tegra 2 dual-core processor and runs the vanilla version of Honeycomb. There's no TouchWiz overlay for this tablet, which is kind of surprising considering TouchWiz is on the 7-inch Tab and all of the Galaxy S phones. Check out our full hands-on of Google Honeycomb for more about its user interface.
Other specs include an 8-megapixel back-facing camera and a front-facing 2-megapixel camera for video calls. For the fun of it, I snapped a picture with the back-facing camera and yes, it felt totally awkward.
In the tablet wars, it is hard to see how the Galaxy Tab 10.1 will differentiate itself from the rest of the pack. I mean, unless you're really partial to Samsung products, why pick the Tab 10.1 over the Xoom or the G-Slate?
Stay tuned for more mobile and tablet news out of Mobile World Congress 2011 in Barcelona this week