Phone Comparison - Micromax Bolt A37B vs Karbonn Smart A12 Star

Micromax Bolt A37B
micromax bolt a37b
Karbonn Smart A12 Star
karbonn smart a12 star
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general General Info

Manufacturer Micromax Karbonn
Announced January 2014 June 2014
Status Available - January 2014 Available - June 2014
Colors Black White, Black
Form Factor Candybar Candybar
Dimension - 124.2 x 64.2 x 10.1 mm
(4.89 x 2.53 x 0.4 in)
Weight - 130 g (4.59 oz)
2G Network GSM 900 / 1800 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
3G Network HSDPA 2100 HSDPA 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2.2 (Jelly Bean) Android OS, v4.4.2 (KitKat)
Processor Dual-core 1.3 GHz, MTK 6572M [Similar] Dual-core 1.2 GHz, MTK 6572 [Similar]
GPU Mali-400 [Similar] Mali-400MP [Similar]
RAM 256 MB [Browse Similar] 512 MB [Browse Similar]
Internal Memory 512 MB (107 MB for Apps, 27.82 MB for Mass Storage) 4 GB (2.4 GB internal storage)
External Memory microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen IPS LCD Capacitive Touchscreen, Wide Viewing Angle
Colors 16M colors 16M colors
Size 3.5 inches [Similar] 4.0 inches [Similar]
Resolution 320 x 480 pixels (165 ppi) 480 x 800 pixels (233 ppi) [Similar]
Screen-to-Body Ratio - 57.23%
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] 5 MP, 2592х1944 pixels [Similar]
Flash LED flash LED flash
Features Fixed Focus, Geo-tagging Geo-tagging, Face Detection, Panorama
Video Yes Yes, 720p
Front Camera No [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes
Edge Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v2.1 with EDR 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
USB Yes, microUSB v2.0 Yes, microUSB v2.0
GPS No Yes, with A-GPS support
Browser HTML HTML

memory User Memory

Internal 512 MB (107 MB for Apps, 27.82 MB for Mass Storage), 256 MB RAM 4 GB (2.4 GB internal storage), 512 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 present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC not supported

battery Battery

Type Li-Ion Battery Li-Ion Battery
Capacity 1450 mAh 1400 mAh
Stand by Up to 256 h Up to 300 h (2G)
Talk Time Up to 5 h 30 min -