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Samsung Comeback vs Samsung GALAXY Ace DUOS

Samsung Comeback Remove phone

phone
PA Rating - 6.5
User Rating - 4.6

Posted: 11 May 2009
Market Status: Released

Samsung GALAXY Ace DUOS Remove phone

phone
User Rating - 8

Posted: 24 Feb 2012
Market Status: Released

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Design
Device type Smart phone 
OS Android (2.3) 
Dimensions4.33 x 2.20 x 0.73 inches (110 x 56 x 19 mm)4.44 x 2.42 x 0.45 inches (112.74 x 61.5 x 11.5 mm) 
Weight4.60 oz (130 g)
the average is 4.8 oz (137 g)
4.30 oz (122 g)
the average is 4.8 oz (137 g)
 
Display
Physical size 3.5 inches 
Resolution240 x 400 pixels320 x 480 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.

 165 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 
Colors262 144  
Touchscreen Multi-touch 
Additional display

Additional display - Shows specs of the phone's additional display

PMOLED  
Resolution

Resolution - Refers to the width and the length od the additional display

128 x 128 pixels  
Colors

Colors - Shows the number of colors that the additional display supports

65 536  
Camera
Camera2 megapixels5 megapixels 
FeaturesDigital zoom, Burst modeAutofocus, Smile detection, Geo tagging 
CamcorderYes640x480 (VGA) 
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, 832 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.

 512 MB RAM 
Built-in storage0.075 GB3 GB 
Storage expansionmicroSD, microSDHCmicroSD, microSDHC up to 32 GB 
Battery
Talk time5.50 hours
the average is 12 h (745 min)
16.60 hours
the average is 12 h (745 min)
 
Stand-by time12.5 days (300 hours)
the average is 21 days (502 h)
21.7 days (520 hours)
the average is 21 days (502 h)
 
Talk time (3G) 6.50 hours
the average is 13 h (769 min)
 
Stand-by time (3G) 17.1 days (410 hours)
the average is 21 days (502 h)
 
Capacity960 mAh1300 mAh 
specifications continue after the ad
Multimedia
Music player   
Filter by Album, Artist, Playlists 
Features Album art cover, Background playback 
Radio FM, RDS 
Speakers Earpiece, Loudspeaker 
YouTube player Yes 
Internet browsing
Built-in online services support YouTube (upload), Picasa/Google+ 
Technology
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS1700/2100, 2100 MHz900, 2100 MHz 
DataEDGE, UMTS, HSDPA 3.6 Mbit/sHSDPA 7.2 Mbit/s, UMTS, EDGE, GPRS 
Multiple SIM cards 2 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.

GPSA-GPS 
Navigation Yes 
Connectivity
Bluetooth2.03.0 
Wi-Fi 802.11 b, g, n 
USBUSB 2.0USB 2.0 
Connector microUSB 
Features Mass storage device, USB charging 
OtherComputer syncDLNA, Computer sync, OTA sync 
Other features
NotificationsMusic ringtones (MP3), Polyphonic ringtones (72 voices), Vibration, Phone profiles, SpeakerphoneMusic ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone 
Sensors Accelerometer, Compass 
OtherVoice recording, TTY/TDDVoice dialing, Voice commands, Voice recording 
Availability
Officially announced22 Jul 2009  

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

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