Phone Comparison - Samsung Galaxy Ace Duos vs Karbonn A12 vs Karbonn A25

general General Info

Manufacturer Samsung Karbonn Karbonn
Announced May 2012 February 2013 May 2013
Status Available - June 2012 Available - February 2013 Available - May 2013
Colors Black Black/White White, Black
Form Factor Candybar Candybar Candybar
Dimension 112.7 x 61.5 x 11.5 mm
(4.44 x 2.42 x 0.45 in)
135 x 66 x 11 mm
(5.31 x 2.6 x 0.43 in)
-
Weight 122 g (4.3 oz) 164 g (5.78 oz) -
2G Network GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 2100 HSDPA 2100 - SIM 1 only No
Messaging SMS, MMS SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v2.3 (Gingerbread) Android OS, v4.0.4 (Ice Cream Sandwich) Android OS, v4.0 (Ice Cream Sandwich)
Processor 832 MHz 1 GHz Dual-core 1 GHz
GPU - -
RAM N/A 512 MB 512 MB
Internal Memory 3 GB storage, 512 MB 4 GB 512 MB ROM
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen Capacitive Touchscreen TFT capacitive touchscreen
Colors 16M colors 262K colors -
Size 3.5 inches 4.5 inches 5.0 inches
Resolution 320 x 480 pixels (165 ppi) 480 x 854 pixels (218 ppi) 480 x 800 pixels (187 ppi)
Screen-to-Body Ratio 52.52% 62.46% -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio with RDS FM radio FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 5 MP, 2592x1944 pixels 5 MP, 2592х1944 pixels 5 MP, 2592х1944 pixels
Flash No LED flash LED flash
Features Auto focus, Geo-tagging Auto focus, Geo-tagging, Face Detection Auto focus, Geo-tagging
Video Yes Yes Yes
Front Camera No [Similar] Yes, VGA [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes, Class 12
3G HSDPA, 7.2 Mbps HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps No
Bluetooth Yes, v3.0 with A2DP Yes Yes, v3.0
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS support
Browser HTML HTML HTML

memory User Memory

Internal 3GB storage, 512 MB 4 GB, 512 MB RAM 512 MB ROM, 512 MB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Standard battery, Li-Ion Li-Ion Battery Li-Ion Battery
Capacity 1300 mAh 1800 mAh 2000 mAh
Stand by Up to 520 h (2G)
Up to 410 h (3G)
Up to 180 h -
Talk Time Up to 6 h 30 min (2G)
Up to 16 h 40 min (3G)
Up to 4 h -