Phone Comparison - Micromax Bolt A40 vs Karbonn Smart A51

Micromax Bolt A40
micromax bolt a40
Karbonn Smart A51
karbonn smart a51
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general General Info

Manufacturer Micromax Karbonn
Announced September 2013 September 2013
Status Available - September 2013 Available - September 2013
Colors Black White Silver
Form Factor Candybar Candybar
Dimension - -
Weight - -
2G Network GSM 900 / 1800 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
3G Network No No
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v2.3.5 (Gingerbread) Android OS, v4.0 (Ice Cream Sandwich)
Processor 1 GHz Cortex-A5, Spreadtrum SC6820 [Similar] 1 GHz [Similar]
GPU Mali-400 [Similar] -
RAM 512 MB [Browse Similar] 256 MB [Browse Similar]
Internal Memory 512 MB (75 MB user available) 512 MB (100 MB user available)
External Memory microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT touchscreen TFT capacitive touchscreen
Colors 16M colors 16M colors
Size 4.5 inches [Similar] 3.5 inches [Similar]
Resolution 480 x 854 pixels (218 ppi) [Similar] 320 x 480 pixels (165 ppi)
Screen-to-Body Ratio - -
Multi-Touch yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 2 MP, 1600x1200 pixels [Similar] 3.15 MP, 2048x1536 pixels [Similar]
Flash LED Flash LED flash
Features Fixed Focus, Geo-tagging -
Video Yes, 480p Yes
Front Camera Yes, VGA [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes
Edge Yes Yes
3G No No
Bluetooth Yes, 2.1 Yes
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g, Wi-Fi hotspot
USB Yes Yes
GPS No No
Browser HTML HTML

memory User Memory

Internal 512 MB (75 MB user available), 512 MB RAM 512 MB (100 MB user available), 256 MB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB

Apps Sensors

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

battery Battery

Type Li-Ion Battery Li-Ion Battery
Capacity 1500 mAh 1100 mAh
Stand by Up to 175 h -
Talk Time Up to 4 h 30 min -