Phone Comparison - Lenovo A390 vs Samsung Galaxy Trend Duos S7392 vs Karbonn Smart A55

general General Info

Manufacturer Lenovo Samsung Karbonn
Announced April 2013 September 2013 April 2014
Status Available - April 2013 Available - September 2013 Available - April 2014
Colors Black, White White, Gray White, Black
Form Factor Candybar Candybar Candybar
Dimension 125.6 x 64 x 10.1 mm
(4.94 x 2.52 x 0.4 in)
121.5 x 63.1 x 10.85 mm
(4.78 x 2.48 x 0.43 in)
-
Weight 131 g (4.62 oz) 126 g (4.44 oz) -
2G Network GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
3G Network HSDPA 2100 HSDPA 900 / 2100 - SIM 1 No
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0.4 (Ice Cream Sandwich) Android OS, v4.1.2 (Jelly Bean) Android OS, v4.2.2 (Jelly Bean)
Processor Dual-core 1 GHz, MTK 6577 1 GHz Cortex-A9 Dual-core 1.2 GHz, MTK 6572
GPU PowerVR SGX531 - Mali-400MP
RAM 512 MB 512 MB 512 MB
Internal Memory 4 GB 4 GB (User Memory: 2.05 GB) 4 GB ROM
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type Capacitive touchscreen TFT capacitive touchscreen IPS LCD Capacitive Touchscreen, Wide Viewing Angle
Colors - 16M colors 16M colors
Size 4.0 inches 4.0 inches 3.5 inches
Resolution 480 x 800 pixels (233 ppi) 480 x 800 pixels (233 ppi) 320 x 480 pixels (165 ppi)
Screen-to-Body Ratio 56.77% 59.52% -
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592 х 1944 pixels 3.15 MP, 2048x1536 pixels 3 MP, 2048 x 1536 pixels
Flash No No LED flash
Features Geo-tagging CMOS Sensor, Single Shot, Panorama, Smile Shot, Share Shot, Photo Effects, White Balance, Timer, SF, 360 Deg Rotation Geo-tagging
Video Yes Yes Yes
Front Camera No [Similar] No [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, HSUPA HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps No
Bluetooth Yes Yes, v3.0 Yes, v2.0 A2DP, EDR
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot 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 HTML5 HTML HTML

memory User Memory

Internal 4 GB, 512 MB RAM 4 GB (User Memory: 2.05 GB), 512 MB RAM 4 GB 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 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 1500 mAh 1500 mAh 1100 mAh
Stand by Up to 220 h (2G)
Up to 180 h (3G)
Up to 350 h (3G) -
Talk Time Up to 14 h (2G)
Up to 9 h (3G)
Up to 8 h (3G) -