Zen Ultrafone 504 vs. Karbonn A21 Plus

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Zen Ultrafone 504

Karbonn A21 Plus

Price
Rs. 4,996.00	Rs. 4,444.00
Capacity
2000 mAH, Li-ion	2000 mAH, Li-ion
Camera Features
	Auto Focus
Main Camera
5 MP	5 MP, Auto focus
Front Camera
1.3 MP 333.3% more mega pixels (MP) on front camera than Karbonn A21 Plus. More front camera resolution means better selfies picture. Front facing cameras also used for video call on Skype (1.3 MP vs. 0.3 MP)	0.3 MP
Flash
LED	LED
Zoom
Digital Zoom	Digital Zoom
Operating Frequency
GSM 1800 / 900 MHz UMTS 2100 MHz \| GSM 1800 / 900 MHz	GSM 1800 / 1900 / 850 / 900 MHz UMTS 2100 MHz \| GSM 1800 / 900 MHz
GPRS
Yes	Yes
EDGE
Yes	Yes
3G
HSDPA , HSUPA	HSDPA , HSUPA
Wi-Fi
Wi-Fi 802.11	Wi-Fi 802.11, b/g/n, Mobile Hotspot
Bluetooth
Yes	A2DP
USB Connectivity
USB Port	USB Port
Touch Screen
Capacitive Touchscreen	Capacitive Touchscreen, Multi-touch
Weight
	104 grams
Dimensions
	112 x 60.5 x 11.5 mm
Colours
Black,White	Black,White
Screen Size
5.0 Inch	5 Inch
Screen Resolution
960 x 540 pixels	480 x 854 pixels
Pixel Density (sharpness)
220 ppi 12.2% Higher pixel density than Karbonn A21 Plus. High pixel density shows sharper text and extremely detailed photos and videos. (220 ppi vs. 196 ppi)	196 ppi
Display Type
IPS LCD	TFT
Box Contents
Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card	Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card
Sensors
	Accelerometer, Light sensor, Proximity sensor
OS Type
Android	Android
Brand
Zen	Karbonn
Model
Ultrafone 504	A21 Plus
Operating System
Android v4.2 (Jelly Bean)	Android v4.2 (Jelly Bean)
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
FM Radio
	Yes
Audio Jack
	3.5 mm
Loudspeaker
Yes	Yes
Processor
Dual core, 1.3 GHz	Dual core, 1 GHz
RAM
512 MB	512 MB
Internal Memory
4 GB	4 GB
Expandable Memory
Up to 32 GB	Up to 32 GB