Karbonn Smart A51 vs Samsung Galaxy Trend Duos S7392 vs Panasonic T31
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 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
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 | ||
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Multimedia
3.5mm Jack | ||
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Radio | ||
FM radio | FM Radio | FM Radio with Recording |
Games | ||
Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
Loud Speaker | ||
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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 | No | Yes, VGA |
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 |
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 |
Sensors
Fingerprint | ||
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Proximity Sensor | ||
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Accelerometer Sensor | ||
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NFC | ||
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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) |