Phone Comparison - Karbonn A99 vs Samsung Galaxy S Duos 2 S7582 vs Micromax Bolt A47

general General Info

Manufacturer Karbonn Samsung Micromax
Announced October 2013 November 2013 December 2013
Status Available - October 2013 Available - November 2013 Available - December 2013
Colors White, Black White, Black White
Form Factor Candybar Candybar Candybar
Dimension - 121.5 x 63.1 x 10.57 mm
(4.78 x 2.48 x 0.42 in)
125.3 x 65.5 x 12.3 mm
(4.93 x 2.58 x 0.48 in)
Weight - 118 g (4.16 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 No
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2.2 (Jelly Bean) Android OS, v4.2 (Jelly Bean) Android OS, v4.2.2 (Jelly Bean)
Processor Dual-core 1.3 GHz, MTK 6572 Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 Dual-core 1.3 GHz, MTK 6572
GPU Mali-400MP Broadcom VideoCore IV Mali-400
RAM 512 MB 768 MB 256 MB
Internal Memory 4 GB 4 GB (1.9 GB user available) 512 MB (161 MB for Apps, 14.4 MB for Mass Storage)
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type IPS LCD Capacitive Touchscreen, Wide Viewing Angle TFT Capacitive Touchscreen, PLS IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16.7M colors
Size 3.97 inches 4.0 inches 4.0 inches
Resolution 480 x 800 pixels (235 ppi) 480 x 800 pixels (233 ppi) 480 x 800 pixels (233 ppi)
Screen-to-Body Ratio - 59.52% 55.60%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592х1944 pixels 5 MP, 2592х1944 pixels 2 MP, 1600x1200 pixels
Flash LED Flash LED flash LED flash
Features - Auto focus, Geo-tagging Fixed Focus, Geo-tagging, Multi-shot, Night Mode
Video Yes, 720p Yes, 720p@30fps Yes, 480p@30fps
Front Camera Yes [Similar] Yes, VGA [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes, Class 12
Edge Yes Yes Yes, Class 12
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps No
Bluetooth Yes, v2.0 A2DP, EDR Yes, v4.0 with A2DP Yes, v4.0 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 Direct 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 Yes, with A-GPS support and GLONASS No
Browser HTML HTML5 HTML5

memory User Memory

Internal 4 GB ROM, 512 MB RAM 4 GB (1.9 GB user available), 768 MB RAM 512 MB (161 MB for Apps, 14.4 MB for Mass Storage), 256 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 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 Standard battery, Li-Ion Li-Ion Battery
Capacity 1400 mAh 1500 mAh 1600 mAh
Stand by - Up to 280 h (3G) Up to 180 h
Talk Time - Up to 8 h (3G) Up to 6 h