Karbonn Smart A51

Zen Ultrafone 303

Price
Rs. 2,650.00 Rs. 3,449.00
Capacity
1100 mAH, Li-ion 1500 mAH, Li-ion

36.4% more mAH battery than Zen Ultrafone 303. More battery capacity reduces the need to charge your battery again. (1500 mAH, Li-ion vs. 1100 mAH, Li-ion)

TalkTime
Up to 6 Hours(2G)
Stand By Time
Up to 120 Hours(2G)
Main Camera
3.2 MP 3.2 MP
Front Camera
0.3 MP 0.3 MP
Flash
LED LED
Zoom
Digital Zoom Digital Zoom
Camera Features
Geo tagging Image Viewer
Operating Frequency
GSM 1800 / 900 MHz | GSM 1800 / 900 MHz GSM 900 / 1800 | GSM 900 / 1900
GPRS
Class 12
EDGE
Class 12
Wi-Fi
Wi-Fi 802.11, b/g/n Wi-Fi 802.11
Bluetooth
v3.0 A2DP
USB Connectivity
USB Port, microUSB 2.0 USB Port
Touch Screen
Capacitive Touchscreen Capacitive Touchscreen
Dimensions
132 x 67.5 x 9.25 mm

1.6 mm Thinner than Zen Ultrafone 303. Slim mobile phone is easy to handle and looks gorgeous in hand. (132 x 67.5 x 9.25 mm vs. 124.1 x 65.3 x 10.8 mm)

124.1 x 65.3 x 10.8 mm
Colours
Black,White Black,White,Blue
Weight
95 grams
Screen Size
3.5 Inch 4 Inch

14.3% bigger screen size than Zen Ultrafone 303. The bigger the screen size is better the user experience of reading and watching movie or video songs. (4 Inch vs. 3.5 Inch)

Screen Resolution
320 x 480 pixels 480 x 800 pixels
Pixel Density (sharpness)
165 ppi 233 ppi

41.2% Higher pixel density than Zen Ultrafone 303. High pixel density shows sharper text and extremely detailed photos and videos. (233 ppi vs. 165 ppi)

Display Type
TFT IPS LCD
Box Contents
Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card
Applications
Zen Store, HS18, Notebook
Sensors
Accelerometer Accelerometer, Gyroscope, Proximity sensor
SIM Size
Micro
OS Type
Android Android
Brand
Karbonn Zen
Model
Smart A51 Ultrafone 303
Operating System
Android v4.0.4 (Ice Cream Sandwich) Android v4.0 (Ice Cream Sandwich)
SIM Slot(s)
Dual SIM, GSM+GSM Dual SIM
FM Radio
Yes Yes
Loudspeaker
Yes Yes
Audio Jack
3.5 mm 3.5 mm
Processor
1 GHz 1 GHz
RAM
256 MB 256 MB
Internal Memory
100 MB 512 MB
Expandable Memory
Up to 32 GB Up to 32 GB
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