• Karbonn Smart A51 vs Samsung Galaxy Trend Duos S7392 vs Panasonic T31

Phone Comparison - Karbonn Smart A51 vs Samsung Galaxy Trend Duos S7392 vs Panasonic T31

general General Info

Manufacturer Karbonn Samsung Panasonic
Announced September 2013 September 2013 October 2013
Status Available - September 2013 Available - September 2013 Available - November 2013
Colors White Silver White, Gray Bluish Black, Pure White
Form Factor Candybar Candybar Candybar
Dimension - 121.5 x 63.1 x 10.85 mm
(4.78 x 2.48 x 0.43 in)
122 x 64.4 x 11.95 mm
(4.8 x 2.54 x 0.47 in)
Weight - 126 g (4.44 oz) 120 g (4.23 oz)
2G Network GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network No HSDPA 900 / 2100 - SIM 1 HSDPA 850 / 1900 / 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.1.2 (Jelly Bean) Android OS, v4.2.2 (Jelly Bean) with FOTA upgrade
Processor 1 GHz 1 GHz Cortex-A9 Dual-core 1.3 GHz, MTK 6572
GPU - - Mali-400
RAM 256 MB 512 MB 512 MB
Internal Memory 512 MB (100 MB user available) 4 GB (User Memory: 2.05 GB) 4 GB (1.9 GB user memory)
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen TFT capacitive touchscreen TFT capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 3.5 inches 4.0 inches 4.0 inches
Resolution 320 x 480 pixels (165 ppi) 480 x 800 pixels (233 ppi) 480 x 800 pixels (233 ppi)
Screen-to-Body Ratio - 59.52% 58.08%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 3.15 MP, 2048x1536 pixels 3.15 MP, 2048x1536 pixels 3.2 MP, 2048x1536 pixels
Flash LED flash No No
Features - CMOS Sensor, Single Shot, Panorama, Smile Shot, Share Shot, Photo Effects, White Balance, Timer, SF, 360 Deg Rotation Fixed Focus, Geo-tagging
Video Yes Yes Yes, VGA@30fps
Front Camera Yes, VGA [Similar] No [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G No HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes Yes, v3.0 Yes, v4.0 with A2DP
Wi-Fi Wi-Fi 802.11 b/g, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot
USB Yes Yes, microUSB v2.0 Yes, microUSB v2.0
GPS No Yes, with A-GPS support Yes, with A-GPS support
Browser HTML HTML HTML5

memory User Memory

Internal 512 MB (100 MB user available), 256 MB RAM 4 GB (User Memory: 2.05 GB), 512 MB RAM 4 GB (1.9 GB user memory), 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 not present proximity sensor not 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 Li-Ion Battery Li-Ion Battery Li-Ion Battery
Capacity 1100 mAh 1500 mAh 1300 mAh
Stand by - Up to 350 h (3G) Up to 510 h (2G)
Up to 400 h (3G)
Talk Time - Up to 8 h (3G) Up to 3 h 30 min (2G)
Up to 9 h 30 min (3G)