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Karbonn K 550 vs Karbonn K 325

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Zen Mobile M25

Karbonn K 550

Posted: 04 Sep 2011
Market Status: Released

Karbonn K 325

Posted: 03 Sep 2011
Market Status: Released

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Design
Device type	Feature phone	Feature phone
Form factor	Candybar	Candybar
Dimensions	4.25 x 1.83 x 0.64 inches (108 x 46.5 x 16.35 mm)	4.41 x 1.89 x 0.55 inches (112 x 48 x 14 mm)
Weight		3.53 oz (100 g) the average is 4.4 oz (125 g)
Design features	Numeric keypad, Soft keys, D-Pad (2)	Numeric keypad, Soft keys, D-Pad (2)

Display
Physical size	2.0 inches	2.2 inches
Resolution	176 x 220 pixels	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.	141 ppi	182 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	TFT
Colors	65 536	65 536

Battery
Talk time	8.00 hours the average is 10 h (623 min)	15.00 hours the average is 10 h (623 min)
Stand-by time	25.0 days (600 hours) the average is 18 days (434 h)	40.0 days (960 hours) the average is 18 days (434 h)
Capacity	1800 mAh	2200 mAh

Hardware
Built-in storage	0.002 GB	0.192 GB
Storage expansion	microSD, microSDHC	microSD, microSDHC

Camera
Camera	0.3 megapixels VGA	0.3 megapixels VGA
Camcorder		Yes

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

Internet browsing
Browser	supports: supports: WAP	supports: supports: WAP

Technology
GSM	900, 1800, 1900 MHz	900, 1800 MHz
Data	GPRS	GPRS
Multiple SIM cards	2 slots	2 slots
Global Roaming	Yes

Phone features
Phonebook	1000 entries	1000 entries
Organizer	Calendar, Alarm, To-Do, Calculator, Currency converter, World clock, Stopwatch, Health management	Calendar, Alarm, To-Do, Flashlight, Calculator, Currency converter, World clock, Stopwatch, Health management
Messaging	SMS (1000 messages), MMS, Predictive text input	SMS (500 messages), MMS, Predictive text input
Games	Yes	Yes

Connectivity
Bluetooth	Yes	Yes
Profiles		Advanced Audio Distribution (A2DP)
USB	Yes	Yes
Headphones connector	3.5mm	3.5mm
Other	Tethering, Computer sync	Computer sync

Other features
Notifications	Music ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Speakerphone	Music ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Speakerphone
Other	Voice recording	Voice recording

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