Phone Comparison - Karbonn A9+ vs Karbonn A21 vs Karbonn A25

general General Info

Manufacturer Karbonn Karbonn Karbonn
Announced 2012 2012 May 2013
Status Available Available Available - May 2013
Colors Pearl White Pearl White White, Black
Form Factor Candybar Candybar Candybar
Dimension 120 x 60.5 x 11.3 mm
(4.72 x 2.38 x 0.44 in)
- -
Weight - - -
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 2100 HSDPA 2100 No
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.0 (Ice Cream Sandwich)
Processor Dual-core 1.2 GHz, Qualcomm MSM8255 Snapdragon Dual-core 1.2 GHz Dual-core 1 GHz
GPU Adreno 203 - -
RAM 512 MB 512 MB 512 MB
Internal Memory 4 GB 4 GB 512 MB ROM
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type IPS LCD capacitive touchscreen TFT capacitive touchscreen TFT capacitive touchscreen
Colors 16M colors 256K colors -
Size 4.0 inches 4.5 inches 5.0 inches
Resolution 480 x 800 pixels (233 ppi) 480 x 800 pixels (207 ppi) 480 x 800 pixels (187 ppi)
Screen-to-Body Ratio 62.86% - -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio No FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 5 MP, 2592х1944 pixels 5 MP, 2592х1944 pixels 5 MP, 2592х1944 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging, Face Detection Auto focus, Geo-tagging, Face Detection Auto focus, Geo-tagging
Video Yes Yes Yes
Front Camera Yes, 1.3 MP [Similar] Yes, 1.3 MP [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes, Class 12
3G HSDPA, 7.2 Mbps HSDPA, 7.2 Mbps No
Bluetooth Yes, with A2DP Yes, v2.1 with A2DP Yes, v3.0
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n 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 HTML HTML HTML

memory User Memory

Internal 4 GB, 512 MB RAM 4 GB, 512 MB RAM 512 MB 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 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 1420 mAh 1800 mAh 2000 mAh
Stand by Up to 200 h Up to 200 h -
Talk Time Up to 4 h Up to 5 h -