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Nokia Lumia 820 vs Nokia Lumia 900

Nokia Lumia 820 Remove phone

phone
PA Rating - 8
User Rating - 8.4

Posted: 05 Sep 2012
Market Status: Released US carrier availability: AT&T - Available (since 09 Nov 2012)

Nokia Lumia 900 Remove phone

phone
Also known as Nokia Ace, Nokia Lumia 900 PA Rating - 8
User Rating - 8.5

Posted: 09 Jan 2012
Market Status: Released US carrier availability: AT&T - Discontinued

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Design
Device typeSmart phoneSmart phone 
OSWindows Phone 8Windows Phone 7.8, 7.5 Refresh, 7.5 Mango 
Form factorCandybarCandybar 
Dimensions4.87 x 2.70 x 0.39 inches (123.8 x 68.5 x 9.9 mm)5.03 x 2.70 x 0.45 inches (127.8 x 68.5 x 11.5 mm) 
Weight5.64 oz (160 g)
the average is 4.4 oz (127 g)
5.64 oz (160 g)
the average is 4.4 oz (127 g)
 
Side KeysRight: Volume control, Camera shutter, Lock/Unlock keyRight: Volume control, Camera shutter, Lock/Unlock key 
ColorsBlack, Yellow, Red, White, GrayBlack, Blue, White 
Display
Physical size4.3 inches4.3 inches 
Resolution480 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.

217 ppi217 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.

AMOLEDAMOLED 
Colors16 777 21616 777 216 
TouchscreenCapacitive, Multi-touchMulti-touch 
FeaturesLight sensor, Proximity sensorLight sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass) 
Battery
Talk time14.00 hours
the average is 11 h (647 min)
7.00 hours
the average is 11 h (647 min)
 
Stand-by time13.8 days (330 hours)
the average is 18 days (441 h)
14.6 days (350 hours)
the average is 18 days (441 h)
 
Talk time (3G)8.00 hours
the average is 10 h (585 min)
  
Stand-by time (3G)13.8 days (330 hours)
the average is 24 days (580 h)
  
Music playback55.00 hours60.00 hours 
Video playback5.00 hours  
Capacity1650 mAh1830 mAh 
TypeLi - IonLi - Ion 
Not user replaceableYes  
Wireless chargingOptional  
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 S2 APQ8055 
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, 1500 MHz, KraitSingle core, 1400 MHz, Scorpion 
Graphics processorAdreno 225Adreno 205 
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 RAM (Dual-channel, 500 MHz) / LPDDR2512 MB RAM (Dual-channel, 333 MHz) / DDR2 
Built-in storage8 GB16 GB 
Storage expansionmicroSD, microSDHC, microSDXC up to 64 GB  
Camera
Camera8 megapixels8 megapixels 
FlashDual LEDDual LED 
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.

F2.2F2.2 
Focal length (35mm equivalent)28mm28mm 
FeaturesAuto focus, Touch to focus, Exposure compensation, White balance presets, Geo taggingAuto focus, Touch to focus, Exposure compensation, Geo tagging 
Camcorder1920x1080 (1080p HD) (30 fps)1280x720 (720p HD) (30 fps) 
Recording formatMPEG4, H.264MPEG4, H.264 
FeaturesContinuous autofocus, Video callingDigital image stabilization, Continuous autofocus, Video calling 
Front-facing camera0.3 megapixels VGA1.3 megapixels 
Video capture640x480 (VGA) (30 fps)  
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Multimedia
Music player   
Filter byAlbum, Artist, PlaylistsAlbum, Artist, Playlists 
FeaturesAlbum art cover, Background playbackAlbum art cover, Background playback 
Supported formatsMP3, AAC, eAAC, eAAC+, WMA, WAV, M4A (Apple lossless), MP4, AMRMP3, AAC, AAC+, eAAC+, WMA, WAV, M4A (Apple lossless), M4B, AMR 
Video playback   
Supported formatsMPEG4, H.263, H.264, WMV, 3GPPMPEG4, H.264, WMV, 3GP, 3G2 
Radio FM 
Internet browsing
BrowserInternet Explorer 10  
supportsHTML, HTML5, XHTML, CSS 3, XMLHTML, HTML5 
Built-in online services supportFacebook, YouTube (upload), Flickr, Picasa, TwitterYouTube (upload), Flickr, Picasa, Twitter 
Technology
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS850, 900, 1900, 2100 MHz850, 900, 1900, 2100 MHz 
LTE800 MHz, 900 MHz, 1800 MHz, 2100 MHz, 2600 MHz700 MHz Class 17, 1700/2100 MHz 
DataLTE Cat3 Downlink 100 Mbit/s, LTE Cat3/4 Uplink 50 Mbit/s, HSDPA+ (4G) 42.2 Mbit/s, UMTS, EDGE, GPRSLTE, HSDPA+ (4G) 21.1 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE 
Micro SIMYes  
Global RoamingYesYes 
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.

GPS, A-GPS, S-GPS, Glonass, Cell ID, Wi-Fi positioningGPS, A-GPS, S-GPS, Cell ID, Wi-Fi positioning 
NavigationTurn-by-turn navigation, Voice navigationTurn-by-turn navigation, Voice navigation, Points of interest (POI) 
Phone features
PhonebookCaller groups, Multiple numbers per contact, Search by both first and last name, Picture ID, Ring IDUnlimited entries, Caller groups, Multiple numbers per contact, Search by both first and last name, Picture ID, Ring ID 
OrganizerCalendar, Alarm, Document viewer (Office 2007, Office 2003, PDF), CalculatorCalendar, Alarm, Document viewer (Office 2007, Office 2003, PDF), Calculator 
MessagingSMS, MMS, Threaded view, Predictive text inputSMS, MMS, Threaded view, Predictive text input 
E-mailIMAP, POP3, SMTP, Microsoft ExchangeIMAP, POP3, SMTP, Microsoft Exchange 
Instant MessagingWindows Live / MSNWindows Live / MSN 
Connectivity
BluetoothYes2.1, EDR 
ProfilesAdvanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Generic Audio/Video Distribution (GAVDP), Handsfree (HFP), Headset (HSP), Object Push (OPP), Phone Book Access (PBAP), Serial Port (SPP), Service Discovery Application (SDAP)Advanced Audio Distribution (A2DP), Audio/Video Control Transport Protocol (AVCTP), Audio/Video Distribution Transport Protocol (AVDTP), Audio/Visual Remote Control Profile (AVRCP), Generic Audio/Video Distribution (GAVDP), Handsfree (HFP), Headset (HSP), Phone Book Access (PBAP), Serial Port (SPP) 
Wi-Fi802.11 a, b, g, n, n 5GHz802.11 b, g, n 
Mobile hotspotYesYes 
Wi-Fi DirectYes  
USBUSB 2.0USB 2.0 
ConnectormicroUSBmicroUSB 
FeaturesMass storage device, USB chargingUSB charging 
Headphones connector3.5mm3.5mm 
Charging connectormicroUSBmicroUSB 
OtherNFC, Computer sync, OTA syncComputer sync, OTA sync 
Other features
NotificationsHaptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, SpeakerphoneMusic ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone 
Additional microphone/sfor Noise cancellationYes 
SensorsAccelerometer, Gyroscope, CompassAccelerometer, Gyroscope, Compass 
Hearing aid compatibility M3, T3 
OtherVoice dialing, Voice commands, Voice recordingVoice dialing, Voice commands, Voice recording 
Regulatory Approval
FCC approval

FCC approval - The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC's jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions. Every wireless phone device that that is sold in the U.S. has to be tested and approved for sale by the FCC.

   
Date approved

Date approved - Shows the date when the particular phone is approved by the Federal Communications Commission

18 Oct 201229 Feb 2012 
FCC ID value: PYARM-825 linkFCC ID value: QMNRM-808 link 
FCC measured SAR

FCC measured SAR - The exposure standard for mobile devices employs a unit of measurement known as the Specific Absorption Rate, or SAR. The SAR limit stated in the international guidelines is 2.0 W/ kg*. Tests for SAR are conducted using standard operating positions with the device transmitting at its highest certified power level in all tested frequency bands. Although the SAR is determined at the highest certified power level, the actual SAR of the device while operating can be well below the maximum value.

   
Head1.34 W/kg1.43 W/kg 
Body0.71 W/kg1.30 W/kg 
Product Specific Use0.99 W/kg1.59 W/kg 
Simultaneous Transmission1.58 W/kg1.59 W/kg 
Availability
Officially announced05 Sep 201209 Jan 2012 
Shopping information
AccessoriesNokia AC-50 MicroUSB Charger, Nokia Charging and Data Cable CA-190CD, Nokia Headset WH-208, Product user guide  
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