Karbonn A12 vs Karbonn A21

Key Specs

Battery
Battery	1800 mAh	1800 mAh
Display
Display	4.5 inches (11.43 cm)	4.5 inches (11.43 cm)
Front Camera
Front Camera	0.3 MP	1.3 MP
Processor
Processor	-	Qualcomm Snapdragon S4 Play MSM8225
RAM
RAM	512 MB	-
Rear Camera
Rear Camera	5 MP	5 MP

Battery

Capacity
Capacity	1800 mAh	1800 mAh
Standby time
Standby Time	Up to 180 Hours(2G)	Up to 200 Hours(2G)
TalkTime
TalkTime	Up to 4 Hours(2G)	Up to 5 Hours(2G)
Type
Type	Li-ion	Li-ion

Camera

Autofocus
Autofocus	-	Yes
Camera Features
Camera Features	-	Digital Zoom
Camera Setup
Camera Setup	-	Single
Flash
Flash	-	Yes, LED Flash
Image Resolution
Image Resolution	-	2592 x 1944 Pixels
Resolution
Resolution	-	1.3 MP, Primary Camera

Design

Colours
Colours	Black, White	Black
Height
Height	135 mm	112 mm
Thickness
Thickness	11 mm	11.5 mm Below
Weight
Weight	164 grams	104 grams
Width
Width	66 mm	60.5 mm

Display

Display Type
Display Type	LCD	TFT
Pixel Density
Pixel Density	218 ppi	207 ppi
Resolution
Resolution	480x854 px	-
Screen Size
Screen Size	4.5 inches (11.43 cm)	4.5 inches (11.43 cm)
Screen to Body Ratio (calculated)
Screen to Body Ratio (calculated)	62.61 %	84.98 %
Touch Screen
Touch Screen	Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

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Front Camera

Camera Features
Camera Features	Fixed Focus	-
Resolution
Resolution	0.3 MP, Primary Camera	-

General

Brand
Brand	Karbonn	Karbonn
Launch Date
Launch Date	February 20, 2013 (Official)	October 11, 2012 (Official)
Operating System
Operating System	Android v4 (Ice Cream Sandwich)	Android v4 (Ice Cream Sandwich)

Main Camera

Autofocus
Autofocus	Yes	-
Camera Features
Camera Features	Digital Zoom	-
Camera Setup
Camera Setup	Single	-
Flash
Flash	Yes, LED Flash	-
Image Resolution
Image Resolution	2592 x 1944 Pixels	-
Resolution
Resolution	5 MP, Primary Camera	-

Multimedia

Audio Jack
Audio Jack	3.5 mm	3.5 mm
FM Radio
FM Radio	Yes, Recording option	Yes
Fm Radio
FM Radio	-	Yes
Loudspeaker
Loudspeaker	Yes	Yes

Network & Connectivity

Bluetooth
Bluetooth	Yes	Yes, v2.1
GPS
GPS	Yes	Yes
Network Support
Network Support	5G Not Supported in India, 3G, 2G	5G Not Supported in India, 3G, 2G
SIM 1
SIM 1	3G Bands: UMTS 2100 MHz 2G Bands: GSM 1800 / 1900 / 900 MHz GPRS: Available EDGE: Available	3G Bands: UMTS 2100 MHz 2G Bands: GSM 1800 / 1900 / 900 MHz 3G Speed: HSDPA 7.2 Mbit/s ↓ GPRS: Available EDGE: Available
SIM 2
SIM 2	2G Bands: GSM 1800 / 1900 / 900 MHz	2G Bands: GSM 1800 / 1900 / 900 MHz
SIM Slot(s)
SIM Slot(s)	Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
USB Connectivity	microUSB 2.0	USB 2.0, microUSB 2.0
Wi-Fi
Wi-Fi	Yes, Wi-Fi 4 (802.11 b/g/n)	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
Wi-Fi Features	Mobile Hotspot	-

Performance

CPU
CPU	1 GHz	Dual core, 1.2 GHz, Cortex A5
Chipset
Chipset	-	Qualcomm Snapdragon S4 Play MSM8225
Graphics
Graphics	-	Adreno 203
Ram
RAM	-	512 MB Below

Sensors

Other Sensors
Other Sensors	Light sensor, Proximity sensor, Accelerometer	Accelerometer

Storage

Expandable Memory
Expandable Memory	Yes, Up to 32 GB	Yes, Up to 32 GB
Internal Memory
Internal Memory	4 GB	4 GB Below
User Available Storage
User Available Storage	Up to 2.16 GB	-