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Samsung Galaxy Grand vs Nokia Lumia 820 vs Samsung Galaxy S Duos

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Samsung Galaxy Grand Remove phone

Posted: 18 Dec 2012
Market Status: Released
phone

Nokia Lumia 820 Remove phone

Posted: 05 Sep 2012
Market Status: Released
phone

Samsung Galaxy S Duos Remove phone

Posted: 12 Jul 2012
Market Status: Released
Design
Device typeSmart phoneSmart phoneSmart phone
OSAndroid (4.2.2, 4.1.2)Windows Phone 8Android (4.0.4)
Dimensions5.65 x 3.03 x 0.38 inches (143.5 x 76.9 x 9.6 mm)4.87 x 2.70 x 0.39 inches (123.8 x 68.5 x 9.9 mm)4.78 x 2.48 x 0.41 inches (121.5 x 63.1 x 10.5 mm)
Weight5.71 oz (162 g)
the average is 4.8 oz (136 g)
5.64 oz (160 g)
the average is 4.8 oz (136 g)
4.23 oz (120 g)
the average is 4.8 oz (136 g)
Display
Physical size5.0 inches4.3 inches4.0 inches
Resolution480 x 800 pixels480 x 800 pixels480 x 800 pixels
Pixel density

Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.

187 ppi217 ppi233 ppi
Technology

Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.

TFTAMOLEDTFT
Colors16 777 21616 777 21616 777 216
TouchscreenMulti-touchMulti-touchMulti-touch
FeaturesLight sensor, Proximity sensorLight sensor, Proximity sensorProximity sensor
Camera
Camera8 megapixels8 megapixels5 megapixels
FlashLEDDual LEDLED
Aperture size

Aperture size - The aperture of a camera is the opening through which light travels before it reaches the camera sensor. The smaller the number is, the bigger this opening is, allowing for more light to pass.

 F2.2 
Focal length (35mm equivalent) 28 mm 
Camera sensor size 1/3.2" 
FeaturesBack-illuminated sensor (BSI), AutofocusAutofocus, Touch to focus, Exposure compensation, ISO control, White balance presets, Digital zoom, Geo tagging, Macro mode, Night modeAutofocus, Smile detection, ISO control, White balance presets, Digital zoom, Geo tagging, Panorama, Effects
Camcorder1920x1080 (1080p HD)1920x1080 (1080p HD) (30 fps)640x480 (VGA)
Features Continuous autofocus, Video callingVideo calling
Front-facing camera2 megapixels0.3 megapixels VGA0.3 megapixels VGA
Hardware
System chip

System chip - Most modern handsets use an advanced chip that includes many of the device’s hardware modules like the processor, Wi-Fi, Bluetooth and sometimes even the wireless radio. This field shows what particular system chip (or System-on-a-Chip) is used in the phone.

 Qualcomm Snapdragon S4 Plus MSM8960Qualcomm Snapdragon S1 MSM7227A
Processor

Processor - The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.

Dual core, 1200 MHzDual core, 1500 MHz, KraitSingle core, 1000 MHz, ARM Cortex-A5
Graphics processorYesAdreno 225Adreno 200 (enhanced)
System memory

System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.

1024 MB RAM1024 MB RAM768 MB RAM
Built-in storage8 GB8 GB4 GB
Storage expansionmicroSD, microSDHC, microSDXC up to 64 GBmicroSD, microSDHC, microSDXC up to 64 GBmicroSD, microSDHC up to 32 GB
Battery
Talk time10.16 hours
the average is 12 h (709 min)
15.40 hours
the average is 12 h (709 min)
12.83 hours
the average is 12 h (709 min)
Stand-by time18.3 days (440 hours)
the average is 20 days (492 h)
15.0 days (360 hours)
the average is 20 days (492 h)
23.8 days (570 hours)
the average is 20 days (492 h)
Talk time (3G) 8.10 hours
the average is 15 h (892 min)
8.66 hours
the average is 15 h (892 min)
Stand-by time (3G) 15.0 days (360 hours)
the average is 29 days (705 h)
19.6 days (470 hours)
the average is 29 days (705 h)
Capacity2100 mAh1650 mAh1500 mAh
Wireless charging Optional 
specifications continue after the ad
Multimedia
Music player   
Filter byAlbum, Artist, PlaylistsAlbum, Artist, PlaylistsAlbum, Artist, Playlists
FeaturesAlbum art cover, Background playbackAlbum art cover, Background playbackAlbum art cover, Background playback
Video playback   
Features

Features - Shows any special features of the particular phone's multimedia

Zoom, Stretch to fullscreen  
RadioFM, Stereo, RDSFM, Stereo, RDSFM, Stereo, RDS
SpeakersEarpiece, Loudspeaker Earpiece, Loudspeaker
YouTube player  Yes
Internet browsing
Browser Internet Explorer 10 
Built-in online services supportYouTube (upload), Picasa/Google+Facebook, YouTube (upload), Flickr, Picasa/Google+, TwitterYouTube (upload), Picasa/Google+
Technology
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz
UMTS900, 1900, 2100 MHz850, 900, 1900, 2100 MHz900, 2100 MHz
FDD LTE 800 (band 18), 900 (band 8), 1800 (band 3), 2100 (band 1), 2600 (band 7) MHz 
DataHSDPA+ (4G) 21.1 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRSLTE Cat 3 (100/50 Mbit/s), , HSDPA+ (4G) 42.2 Mbit/s, UMTS, EDGE, GPRSHSDPA 7.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRS
Micro SIM Yes 
Multiple SIM cards  2 slots
Positioning

Positioning - This field shows the positioning systems supported by the device. There are three main types: GPS, A-GPS and GLONASS. GPS - This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather. A-GPS - A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization. GLONASS - GLONASS is a global positioning system, developed by the Russian Federation. It’s very similar to GPS, but isn’t so popular in cell phones.

A-GPS, GlonassGPS, A-GPS, S-GPS, Glonass, Cell ID, Wi-Fi positioningA-GPS
Navigation Turn-by-turn navigation, Voice navigationYes
Connectivity
Bluetooth4.03.03.1
Wi-Fi802.11 b, g, n802.11 a, b, g, n, n 5GHz802.11 b, g, n
Mobile hotspotYesYesYes
USBUSB 2.0USB 2.0USB 2.0
ConnectormicroUSBmicroUSBmicroUSB
FeaturesMass storage device, USB chargingMass storage device, USB chargingMass storage device, USB charging
OtherDLNA, Tethering, Computer sync, OTA syncNFC, Computer sync, OTA syncComputer sync, OTA sync
Other features
NotificationsHaptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent modeHaptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, SpeakerphoneHaptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Additional microphone(s) for Noise cancellation 
SensorsAccelerometer, Gyroscope, CompassAccelerometer, Gyroscope, CompassAccelerometer, Compass
OtherVoice dialing, Voice commands, Voice recordingVoice dialing, Voice commands, Voice recording, TTY/TDDVoice dialing, Voice commands, Voice recording
Availability
Officially announced18 Dec 201205 Sep 2012 
Shopping information
Accessories Nokia AC-50 MicroUSB Charger, Nokia Charging and Data Cable CA-190CD, Nokia Headset WH-208, Product user guide 

To see the full specifications with in-depth details click here.

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