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Name	Karbonn A21	Asus Zenfone Selfie
Processor:	1.2 GHz Qualcomm Scorpion Dual Core	1 GHz Quad Core Cortex A53 Processor and 1.5 GHz Quad Core Cortex A57 Processor
Chipset:		Qualcomm Snapdragon 615
GPU:	No GPU	Adreno 405
Operating System:	Android	Android
Operating System Version:	Ice Cream Sandwich (4.0)	Android 5.0 (Lollipop)
Sensors:	Light Sensor, 3D G-Sensor and Proximity Sensor	Accelerator, G-Sensor, E-Compass, Gyroscope, Proximity, Ambient Light Sensor and Hall Sensor
Manufacturer:	Karbonn	Asus
Series Name:	Karbonn A	Zenfone
Dimensions:	N/A	156.5 x 77.2 x 10.8 (mm)
Weight:	130g	170 g (with battery)
Camera Type:	Dual Camera	Dual Camera
Front Camera:	1.3 Mega Pixels	13 MP
Back Camera:	5 Mega Pixels	13 MP
Camera features:	2592 x 1944 pixels resolution, HD images, LED Flash, Auto Focus, Face Detection, Digital Zooming etc.	Auto Focus, Wide View, PixelMaster
Video Camera features:	Camera can capture videos in MP4, H.263, H.264, AVI and 3GP formats.
RAM:	1GB	2GB / 3GB
External Memory:	Up to 32 GB	Up to 64 GB expandable MicroSD memory
Internal Storage:	4 GB Storage	16GB / 32GB
Screen Size:	480 x 800 px	5.5 inches
Display:	4.5 inches TFT Capacitive Touchscreen	Full HD, 1920x1080/403 PPI, Scratch Resistant Corning Glass with anti-fingerprint coating Corning Gorilla Glass 4
Ports:	USB 2.0	microUSB 2.0, 3.5mm audio jack
Battery Type:	1800 mAh	3000 mAh Li-Polymer
Battery (Talk Time):	5 hours (2G) and 8 hours (3G)
Battery (Standby Time):	200 hours (2G) and 290 hours (3G)
Audio:	MIDI, WAV and MP3	MP3, WAV, WMA, eAAC+
Video:	MP4, AVI, 3GP, H.263 and H.264	MP4, H.264, H.263, WMV
Accessories:		Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card
GPRS:	Yes	Yes
Network:	2G - GSM 850 / 900 / 1800 / 1900, 3G - HSDPA 850 / 1900 / 2100	2G Network: GSM 850 / 900 / 1800 / 1900, 3G Network: WCDMA 900 / 2100, 4G Network: LTE
Connectivity:	3G - HSDPA, 7.2 Mbps, Wi-Fi - 802.11 b/g/n, EDGE and A-GPS with Google Maps	Bluetooth 4.0, microUSB v2.0, Wi-Fi, Wi-Fi Hotspot
Bluetooth:	v2.1	Bluetooth v4.0
Announced/Launched Date:	September 2012	June, 2015
Available Colors:	Pearl White	Pure White, Chic Pink, Aqua Blue, Glacier Gray, Sheer Gold, Glamour Red
Built-in Apps:	Gmail, Twitter, Google Search, Google Play, Skype, Google Talk, Yahoo Messenger, Flickr, Picasa, Facebook, PayTM, NexGTv, WhatsApp, Mobile TV and Google Currents	Google Play, Google Search, Google Maps, Google Calendar, Gmail, Youtube

SIM Slots:	Dual SIM	Dual SIM
SIM Card Type:	Regular SIM	Micro SIM
Category:	Mid range Smartphone	Mid range Smartphone
Price Range:	US$100 to US$199	US$251 to US$499
Sensors: Accelerometer:		Yes
Sensors: Gyroscope:		Yes
Sensors: GPS:		Yes
Sensors: Compass:		Yes
Sensors: Barometer:		No
	Read Karbonn A21 reviews.	Read Asus Zenfone Selfie reviews.

	Compare Karbonn A21: HTC 8X Samsung Galaxy S DUOS Samsung Galaxy Note II Nokia Lumia 920 Samsung Galaxy Victory Lenovo S880 LG Optimus L5 E612 LG Optimus L7 P705 SONY Xperia U Sony Xperia P Sony Ericsson Xperia ARC S LT18i Nokia Lumia 810 LG Optimus L9 P765 LG E730 Apple's iPhone 4S Lava XOLO A700 Karbonn A11 Micromax A116 Canvas HD Intex Aqua Style Samsung Galaxy S II plus Samsung Galaxy Grand Duos GT-i9082EWA Sony Xperia tipo dual Samsung Galaxy Fame S6810 BLU Quattro 4.5 HD Lava XOLO A1000	Compare Asus Zenfone Selfie: HTC 8X Samsung Galaxy S DUOS Samsung Galaxy Note II Nokia Lumia 920 Samsung Galaxy Victory Lenovo S880 LG Optimus L5 E612 LG Optimus L7 P705 SONY Xperia U Sony Xperia P Sony Ericsson Xperia ARC S LT18i Nokia Lumia 810 LG Optimus L9 P765 LG E730 Apple's iPhone 4S Lava XOLO A700 Karbonn A11 Karbonn A21 Micromax A116 Canvas HD Intex Aqua Style Samsung Galaxy S II plus Samsung Galaxy Grand Duos GT-i9082EWA Sony Xperia tipo dual Samsung Galaxy Fame S6810 BLU Quattro 4.5 HD

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