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Nokia 6638 vs Nokia 6630

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Nokia 6638 Remove phone

Posted: 27 Apr 2005
Market Status: Released
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Nokia 6630 Remove phone

Posted: 14 Jun 2004
Market Status: Released

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Design
Device typeSmart phoneSmart phone 
OSSymbianSymbian (8.0) S60 2nd Edition, Feature Pack 2 
Dimensions4.33 x 2.36 x 0.90 inches (110 x 60 x 23 mm)4.33 x 2.36 x 0.81 inches (110 x 60 x 20.6 mm) 
Weight4.58 oz (130 g)
the average is 4.8 oz (137 g)
4.47 oz (127 g)
the average is 4.8 oz (137 g)
 
Display
Resolution176 x 208 pixels176 x 208 pixels 
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 
Colors65 53665 536 
Camera
Camera1.2 megapixels1.3 megapixels 
FeaturesExposure compensation, Night mode, Burst mode, Self-timerDigital zoom, Effects, Self-timer 
CamcorderYes220x176 
FeaturesVideo callingVideo calling 
Hardware
Built-in storage 0.01 GB 
Storage expansionMMCRS-MMC 
Battery
Talk time 3.00 hours
the average is 11 h (678 min)
 
Stand-by time 11.0 days (264 hours)
the average is 20 days (479 h)
 
Capacity1070 mAh900 mAh 
specifications continue after the ad
Technology
CDMA

CDMA - Code Division Multiple Access. A technique of multiplexing, also called spread spectrum, in which analog signals are converted into digital form for transmission. For each communication channel, the signals are encoded in a sequence known to the transmitter and the receiver for that channel. The foremost application is digital cellular phone technology from QUALCOMM that operates in the 800MHz band and 1.9GHz PCS band. CDMA phones are noted for their excellent call quality and long battery life.

800, 1900 MHz  
GSM 900, 1800, 1900 MHz 
UMTS 2100 MHz 
Data UMTS, EDGE 
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  
Connectivity
Bluetooth Yes 
USBYesUSB 2.0 
OtherComputer sync, Infrared, SyncMLComputer sync, SyncML 
Other features
NotificationsVibration, Phone profiles, SpeakerphoneVibration, Phone profiles, Speakerphone 
OtherVoice dialing, Voice commands, Voice recording, TTY/TDDVoice dialing, Voice commands, Voice recording 
Availability
Officially announced 14 Jun 2004 

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

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