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Alcatel OneTouch Scribe HD vs Karbonn A21

Alcatel OneTouch Scribe HD Remove phone

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User Rating - 9

Posted: 07 Jan 2013
Market Status: Released

Karbonn A21 Remove phone

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Posted: 16 Jan 2013
Market Status: Released

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Design
Device typeSmart phoneSmart phone 
OSAndroid (4.2)Android (4.0) 
Dimensions5.67 x 2.95 x 0.33 inches (144 x 75 x 8.5 mm)  
Weight4.76 oz (135 g)
the average is 4.8 oz (136 g)
  
Display
Physical size5.0 inches4.5 inches 
Resolution720 x 1280 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.

294 ppi207 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.

IPS LCD  
Colors16 777 216  
TouchscreenMulti-touchMulti-touch 
FeaturesLight sensor, Proximity sensor, Scratch-resistant glass  
Camera
Camera8 megapixels5 megapixels 
FlashLEDLED 
FeaturesAutofocus, Touch to focus, Digital image stabilization, Face detection, Smile detection, Digital zoom, Geo taggingAutofocus, Face detection 
Camcorder1280x720 (720p HD) (30 fps)Yes 
Front-facing camera1.3 megapixels1.3 megapixels 
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.

MediaTek MT6589  
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.

Quad core, 1200 MHz, ARM Cortex-A7Dual core, 1200 MHz 
Graphics processorPowerVR SGX544  
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  
Built-in storage4 GB4 GB 
Maximum User Storage2 GB  
Storage expansionmicroSD, microSDHC up to 32 GBmicroSD, microSDHC up to 32 GB 
Battery
Talk time9.00 hours
the average is 12 h (732 min)
5.00 hours
the average is 12 h (732 min)
 
Stand-by time20.8 days (500 hours)
the average is 21 days (502 h)
8.3 days (200 hours)
the average is 21 days (502 h)
 
Talk time (3G)5.00 hours
the average is 13 h (769 min)
  
Stand-by time (3G)10.4 days (250 hours)
the average is 21 days (502 h)
  
Capacity2500 mAh1800 mAh 
specifications continue after the ad
Multimedia
Music player   
Filter byAlbum, Artist, PlaylistsAlbum, Artist, Playlists 
FeaturesAlbum 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, RDS  
SpeakersLoudspeakerLoudspeaker 
Broadcast Mobile TV Yes 
Internet browsing
Built-in online services supportYouTube (upload), Picasa/Google+YouTube (upload), Picasa/Google+ 
Technology
GSM850, 900, 1800, 1900 MHz900, 1800, 1900 MHz 
UMTS900, 2100 MHz2100 MHz 
DataHSDPA+ (4G) 42.2 Mbit/s, HSUPA 11 Mbit/s, UMTS, EDGE, GPRSHSDPA 7.2 Mbit/s, UMTS, EDGE, GPRS 
Micro SIMYes  
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, A-GPSGPS, A-GPS 
NavigationYesYes 
Connectivity
Bluetooth4.0Yes 
Wi-Fi802.11 b, g, n802.11 b, g, n 
USBUSB 2.0Yes 
ConnectormicroUSBmicroUSB 
FeaturesMass storage device, USB chargingMass storage device, USB charging 
OtherComputer sync, OTA sync  
Other features
NotificationsHaptic feedback, Music ringtones, Vibration, Silent modeMusic ringtones, Vibration 
Additional microphone/sfor Noise cancellation  
SensorsGyroscope, Compass  
Hearing aid compatibilityM3, T3  
OtherVoice dialing, Voice commands, Voice recordingVoice dialing, Voice commands, Voice recording 
Availability
Officially announced07 Jan 2013  

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

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