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Karbonn KT21 Express vs Karbonn KT7

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Karbonn KT21 Express

Posted: 25 Apr 2012
Market Status: Released

Karbonn KT7

Also known as Karbonn JUMBO TNT

Posted: 08 Jun 2012
Market Status: Released

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Design
Device type	Feature phone	Feature phone
Form factor	Candybar	Candybar
Dimensions		4.53 x 1.97 x 0.61 inches (115 x 50 x 15.5 mm)
Weight		3.88 oz (110 g) the average is 4.4 oz (125 g)
Design features	Numeric keypad	Numeric keypad, Soft keys (2), D-Pad
Side Keys	Left: Camera shutter
Colors	Brown	Black

Display
Physical size	2.8 inches	2.4 inches
Resolution		240 x 320 pixels
Pixel density Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.		167 ppi
Technology Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.		TFT
Touchscreen	Capacitive, Multi-touch	Yes
Features	Proximity sensor

Battery
Talk time		6.00 hours the average is 10 h (623 min)
Stand-by time		20.8 days (500 hours) the average is 18 days (434 h)
Capacity	1000 mAh	1800 mAh
Type	Li - Ion	Li - Ion

Hardware
Storage expansion	microSD, microSDHC up to 32 GB	microSD, microSDHC up to 8 GB

Camera
Camera	3.2 megapixels	1.3 megapixels
Flash	Yes
Features	Digital zoom	Digital zoom
Camcorder	Yes	Yes

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Multimedia
Music player
Supported formats	MP3	MP3, WAV, AMR, MIDI
Video playback
Supported formats		MPEG4, 3GP
Radio	FM, Recording option
Speakers	Loudspeaker	Loudspeaker

Internet browsing
Browser	supports: supports: WAP	supports: supports: WAP
Built-in online services support	Facebook, YouTube (upload)

Technology
GSM	900, 1800 MHz	900, 1800 MHz
Data	EDGE, GPRS	GPRS
Multiple SIM cards		2 slots

Phone features
Phonebook	2000 entries	1000 entries
Organizer		Flashlight
Messaging	SMS	SMS (500 messages), MMS, Predictive text input
E-mail	Yes
Instant Messaging	Yahoo!
JAVA JAVA - J2ME (Java 2 Platform, Micro Edition) is a technology that allows programmers to use the Java programming language and related tools to develop programs for mobile wireless information devices such as cellular phones and personal digital assistants (PDAs). J2ME consists of programming specifications and a special virtual machine, the K Virtual Machine, that allows a J2ME-encoded program to run in the mobile device.	Yes
Games		Yes

Connectivity
Bluetooth	Yes	Yes
USB		Yes
Headphones connector	3.5mm
Other		Computer sync

Other features
Notifications		Music ringtones, Polyphonic ringtones, Vibration

Nokia Lumia 925
- Announced: 14 May 2013
- OS: Windows Phone 8
- Hardware: Dual core, 1500 MHz, Krait, 1024 MB RAM
- Display: 4.5 inches, 768 x 1280 pixels, Capacitive Touchscreen
- Camera 8.7 megapixels, 1920x1080 (1080p HD) video
- Battery: 18.3 hours of Talk Time, 432 hours of Stand-by
- Technology: GSM (850 900 1800 1900)
- Data: LTE Cat3 Downlink 100 Mbit/s LTE Cat3/4 Uplink 50 Mbit/s HSDPA+ (4G) 42.2 Mbit/s HSUPA 5.76 Mbit/s
BlackBerry Q5
- Announced: 4 days ago
- OS: BlackBerry
Sony Xperia ZR
- Announced: 4 days ago
- OS: Android 4.1
- Hardware: Quad core, 1500 MHz, 2048 MB RAM
- Display: 4.5 inches, 720 x 1280 pixels, Capacitive Touchscreen
- Camera 13 megapixels, 1920x1080 (1080p HD) video
- Technology: GSM (850 900 1800 1900)
- Data: HSPA (unspecified) UMTS EDGE GPRS
Nokia Lumia 928
- Announced: 10 May 2013
- OS: Windows Phone 8
- Hardware: Dual core, 1500 MHz, Krait, 1024 MB RAM
- Display: 4.5 inches, 768 x 1280 pixels, Capacitive Touchscreen
- Camera 8.7 megapixels, 1920x1080 (1080p HD) video
- Battery: 16.2 hours of Talk Time, 606 hours of Stand-by
- Technology: GSM (850 900 1800 1900), CDMA (800 1900)
- Data: LTE Cat3 Downlink 100 Mbit/s LTE Cat3/4 Uplink 50 Mbit/s HSDPA+ (4G) 42.2 Mbit/s HSUPA 5.76 Mbit/s UMTS EDGE GPRS EV-DO Rev.A
Vertu Ti
- Posted: 09 May 2013
- OS: Android 4.0
- Hardware: Dual core, 1700 MHz, 1024 MB RAM
- Display: 3.7 inches, 480 x 800 pixels, Capacitive Touchscreen
- Camera 8 megapixels, 1920x1080 (1080p HD) video
- Battery: 7.3 hours of Talk Time, 200 hours of Stand-by
- Technology: GSM (850 900 1800 1900)
- Data: HSDPA+ (4G) 42.2 Mbit/s HSUPA 5.76 Mbit/s EDGE GPRS
Nokia Asha 501
- Announced: 09 May 2013
- Hardware: 64 MB RAM
- Display: 3.0 inches, 240 x 320 pixels, Capacitive Touchscreen
- Camera 3.2 megapixels, 320x240 (QVGA) video
- Battery: 17 hours of Talk Time, 1152 hours of Stand-by
- Technology: GSM (900 1800)
- Data: EDGE GPRS
Samsung Galaxy Core
- Announced: 06 May 2013
- OS: Android 4.1
- Hardware: Dual core, 1200 MHz, 1024 MB RAM
- Display: 4.3 inches, 480 x 800 pixels, Capacitive Touchscreen
- Camera 5 megapixels, 720x480 (DVD) video
- Technology: GSM (850 900 1800 1900)
- Data: HSPA (unspecified) HSUPA 5.76 Mbit/s UMTS EDGE GPRS
Samsung Galaxy Tab 3
- Announced: 29 Apr 2013
- OS: Android 4.1
- Hardware: Dual core, 1200 MHz, 1024 MB RAM
- Display: 1024 x 600 pixels, Capacitive Touchscreen
- Camera 3 megapixels
- Technology: GSM (850 900 1800 1900)
- Data: HSDPA+ (4G) 21.1 Mbit/s HSUPA 5.76 Mbit/s UMTS EDGE GPRS