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Nokia X7 vs Nokia Lumia 620

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Nokia X7 Remove phone

Posted: 12 Apr 2011
Market Status: Released
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Nokia Lumia 620 Remove phone

Posted: 05 Dec 2012
Market Status: Released

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Design
Device typeSmart phoneSmart phone 
OSSymbian (Belle, Anna)Windows Phone 8 
Dimensions4.71 x 2.47 x 0.47 inches (119.7 x 62.8 x 11.9 mm)4.54 x 2.41 x 0.43 inches (115.4 x 61.1 x 11 mm) 
Weight5.15 oz (146 g)
the average is 4.9 oz (139 g)
4.48 oz (127 g)
the average is 4.9 oz (139 g)
 
Display
Physical size4.0 inches3.8 inches 
Resolution360 x 640 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.

184 ppi246 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.

AMOLEDIPS LCD 
Colors16 777 21616 777 216 
TouchscreenMulti-touchMulti-touch 
FeaturesLight sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass)Light sensor, Proximity sensor 
Camera
Camera8 megapixels5 megapixels 
FlashDual 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.

F2.8F2.4 
Focal length (35mm equivalent) 28 mm 
FeaturesFace detection, Exposure compensation, Digital zoom, Geo tagging, Self-timerCMOS image sensor, Autofocus, Touch to focus, White balance presets, Geo tagging, Scenes 
Camcorder1280x720 (720p HD) (25 fps)1280x720 (720p HD) (30 fps) 
FeaturesVideo light, Video callingVideo light, Video calling 
Front-facing camera 0.3 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 MSM8227 
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.

Single core, 680 MHz, ARM11Dual core, 1000 MHz, Krait 
Graphics processorYes Adreno 305 
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.

256 MB RAM / 1024 MB ROM512 MB RAM 
Built-in storage0.35 GB8 GB 
Storage expansionmicroSD, microSDHC up to 32 GBmicroSD, microSDHC, microSDXC up to 64 GB 
Battery
Talk time6.50 hours
the average is 12 h (699 min)
14.60 hours
the average is 12 h (699 min)
 
Stand-by time18.8 days (450 hours)
the average is 21 days (493 h)
  
Talk time (3G)4.50 hours
the average is 15 h (925 min)
9.90 hours
the average is 15 h (925 min)
 
Stand-by time (3G)18.8 days (450 hours)
the average is 23 days (546 h)
13.8 days (330 hours)
the average is 23 days (546 h)
 
Capacity1300 mAh1300 mAh 
specifications continue after the ad
Multimedia
Music player   
Filter by Album, Artist, Genre, Playlists 
Features Album art cover, Background playback 
RadioFM, Stereo, RDS, FM Transmiter  
SpeakersEarpiece, Stereo speakersEarpiece, Loudspeaker 
YouTube playerYes  
Internet browsing
Browser Internet Explorer 10 
Built-in online services supportFacebook, TwitterFacebook, YouTube (upload), Twitter 
Technology
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS850, 900, 1700/2100, 1900, 2100 MHz850, 900, 1900, 2100 MHz 
DataHSDPA 10.2 Mbit/s, HSUPA 2 Mbit/s, UMTS, GPRSHSDPA+ (4G) 21.1 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRS 
Micro SIM Yes 
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-GPSGPS, A-GPS, S-GPS, Glonass, Cell ID, Wi-Fi positioning 
NavigationTurn-by-turn navigation, Voice navigation, Points of interest (POI)Turn-by-turn navigation, Voice navigation 
Connectivity
Bluetooth3.04.0 
Wi-Fi802.11 b, g, n802.11 a, b, g, n 
Mobile hotspot Yes 
USBUSB 2.0USB 2.0 
ConnectormicroUSBmicroUSB 
FeaturesMass storage device, USB chargingUSB charging 
OtherTethering, Computer sync, OTA sync, MirrorLinkNFC, Tethering, Computer sync 
Other features
NotificationsHaptic feedback, Music ringtones (MP3, AAC, eAAC, eAAC+, WMA, AMR), Video ringtones, Polyphonic ringtones, Vibration, Phone profiles, Flight mode, Silent mode, SpeakerphoneHaptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone 
Additional microphone(s)for Noise cancellationfor Noise cancellation 
SensorsAccelerometer, CompassAccelerometer, Compass 
OtherVoice dialing (Speaker independent), Voice commands (Speaker independent), Voice recordingVoice dialing, Voice commands, Voice recording 
Availability
Officially announced12 Apr 201105 Dec 2012 
Shopping information
AccessoriesFast Micro-USB Charger AC-10, Stereo Headset WH-701, 8 GB microSDHC Card MU-43 (pre-installed in the device), Quick start guideNokia AC-50 MicroUSB Charger, Nokia Battery BL-4J , Nokia Charging and Data Cable CA-190CD, Nokia Stereo Headset WH-108 

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