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Lemon Mobiles T39 vs Celkon A90

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Lemon Mobiles T39 Remove phone

Posted: 14 Jun 2012
Market Status: Released
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Celkon A90 Remove phone

Posted: 02 Jun 2012
Market Status: Released

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Design
Device typeFeature phoneSmart phone 
OS Android (2.3.5) 
Dimensions4.48 x 2.22 x 0.53 inches (113.7 x 56.5 x 13.5 mm)5.04 x 2.60 x 0.45 inches (128 x 66 x 11.5 mm) 
Weight3.35 oz (95 g)
the average is 4.9 oz (139 g)
4.52 oz (128 g)
the average is 4.9 oz (139 g)
 
Display
Physical size3.2 inches4.0 inches 
Resolution240 x 400 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.

146 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.

 TFT 
TouchscreenYesMulti-touch 
Features Proximity sensor 
Camera
Camera2 megapixels5 megapixels 
Features Geo tagging 
Camcorder Yes 
Hardware
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, 650 MHz 
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 RAM512 MB RAM 
Built-in storage1 GB  
Storage expansionmicroSD, microSDHC up to 16 GBmicroSD, microSDHC up to 32 GB 
Battery
Talk time7.50 hours
the average is 12 h (705 min)
8.33 hours
the average is 12 h (705 min)
 
Stand-by time8.0 days (192 hours)
the average is 20 days (491 h)
12.5 days (300 hours)
the average is 20 days (491 h)
 
Capacity1450 mAh1450 mAh 
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Multimedia
Music player   
Filter by Album, Artist, Playlists 
Features Album art cover, Background playback 
RadioFMFM, Stereo, RDS, Recording option, FM Transmiter 
SpeakersLoudspeakerEarpiece, Loudspeaker 
YouTube player Yes 
Internet browsing
Built-in online services support YouTube (upload), Picasa/Google+ 
Technology
GSM900, 1800 MHz  
UMTS 850, 900, 1900, 2100 MHz 
DataGPRSHSPA (unspecified), UMTS, EDGE, GPRS 
Multiple SIM cards2 slots2 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.

 GPS 
Navigation Yes 
Connectivity
BluetoothYes2.0 
Wi-Fi 802.11 b, g 
Mobile hotspot Yes 
USBYesUSB 2.0 
Connector microUSB 
Features Mass storage device, USB charging 
Other Computer sync, OTA sync 
Other features
NotificationsMusic ringtones, Polyphonic ringtones, VibrationMusic ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone 
SensorsGyroscopeAccelerometer, Compass 
OtherVoice recordingVoice dialing, Voice commands, Voice recording 

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

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