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Motorola Karma QA1 vs Sony Ericsson K550 Size compare

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Motorola Karma QA1 Remove phone

Posted: 16 Mar 2009
Market Status: Released
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Sony Ericsson K550 Remove phone

Posted: 07 Feb 2007
Market Status: Released

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Design
Dimensions3.46 x 2.52 x 0.70 inches (88 x 64 x 17.9 mm)4.01 x 1.81 x 0.55 inches (102 x 46 x 14 mm) 
Weight4.97 oz (141 g)
the average is 5.3 oz (151 g)
2.99 oz (85 g)
the average is 5.3 oz (151 g)
 
FeaturesFull keyboard, Soft keysNumeric keypad, Soft keys 
Display
Physical size2.5 inches1.9 inches 
Resolution320 x 240 pixels176 x 220 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.

160 ppi148 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.

TFTTFT 
Screen-to-body ratio34.41 %24.26 % 
Camera
Camera2 megapixels2 megapixels 
FlashLEDYes 
Hardware Features Autofocus 
Software FeaturesDigital zoomDigital zoom 
CamcorderYesYes 
Hardware
Built-in storage0.1 GB0.064 GB 
Storage expansionmicroSD, microSDHCMemory Stick Micro (M2) 
Battery
Capacity1170 mAh950 mAh 
TypeUser replaceable, Li - IonUser replaceable, Li - Polymer 
Talk time3.50 hours
the average is 14 h (857 min)
7.00 hours
the average is 14 h (857 min)
 
Stand-by time15.2 days (366 hours)
the average is 15 days (370 h)
14.6 days (350 hours)
the average is 15 days (370 h)
 
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Multimedia
Radio FM, RDS 
Cellular
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS850, 1900 MHz  
DataUMTS, HSDPA 3.6 Mbit/s  
Phone features
NotificationsMusic ringtones (MP3), Vibration, Phone profiles, SpeakerphoneMusic ringtones (MP3), Polyphonic ringtones, Vibration, Phone profiles, Speakerphone 
Hearing aid compatibilityM3  
Other featuresVoice dialing, Voice commands, Voice recording, TTY/TDDVoice recording 
Connectivity
Bluetooth2.0, EDR2.0 
USBUSB 2.0USB 2.0 
ConnectormicroUSB  
Features Mass storage device 
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  
Other Computer sync, Infrared 
Availability
Officially announced23 Jun 200906 Feb 2007 
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 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

23 Feb 200915 Jan 2007 
FCC ID value: IHDT56KE1 linkFCC ID value: PY7A1052021 link 
FCC measured SAR

FCC measured SAR - Working closely with federal health and safety agencies, such as the Food and Drug Administration (FDA), the FCC has adopted limits for safe exposure to radiofrequency (RF) energy. These limits are given in terms of a unit referred to as the Specific Absorption Rate (SAR), which is a measure of the amount of radio frequency energy absorbed by the body when using a mobile phone. The FCC requires cell phone manufacturers to ensure that their phones comply with these objective limits for safe exposure. Any cell phone at or below these SAR levels (that is, any phone legally sold in the U.S.) is a "safe" phone, as measured by these standards. The FCC limit for public exposure from cellular telephones is an SAR level of 1.6 watts per kilogram (1.6 W/kg).

   
Head0.55 W/kg1.17 W/kg 
Measured in1900 MHz1900 MHz 
Body1.25 W/kg0.74 W/kg 
Measured in1900 MHz1900 MHz 

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

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