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Karbonn K 550 vs Zen Mobile M25

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Karbonn K 325

Karbonn K 550

Posted: 04 Sep 2011
Market Status: Released

Zen Mobile M25

Posted: 02 Aug 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)
Design features	Numeric keypad, Soft keys, D-Pad (2)	Numeric keypad, Soft keys, D-Pad (2)
Colors		Gray

Display
Physical size	2.0 inches	2.4 inches
Resolution	176 x 220 pixels	320 x 240 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	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
Colors	65 536	262 144

Battery
Talk time	8.00 hours the average is 10 h (626 min)	12.00 hours the average is 10 h (626 min)
Stand-by time	25.0 days (600 hours) the average is 18 days (435 h)	72.0 days (1728 hours) the average is 18 days (435 h)
Capacity	1800 mAh	2500 mAh
Type		Li - Ion

Hardware
Built-in storage	0.002 GB
Storage expansion	microSD, microSDHC	microSD, microSDHC up to 4 GB

Camera
Camera	0.3 megapixels VGA	1.3 megapixels
Camcorder		Yes

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

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

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

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

LG Optimus F3
- Posted: 21 May 2013
- OS: Android 4.1.2
- Hardware: Dual core
- Display: 4.0 inches, 480 x 800 pixels, Capacitive Touchscreen
Kyocera Hydro EDGE
- Posted: 21 May 2013
- OS: Android 4.1
- Hardware: Dual core, 1000 MHz, 1024 MB RAM
- Display: 4.0 inches, 480 x 800 pixels, Capacitive Touchscreen
- Camera 5 megapixels
- Technology: CDMA (800 1900)
Kyocera Hydro XTRM
- Announced: yesterday
- OS: Android 4.1
- Hardware: Dual core, 1200 MHz, Krait
- Display: 4.0 inches, 480 x 800 pixels, Capacitive Touchscreen
- Camera 5 megapixels
- Technology: CDMA (800 1900)
- Data: LTE EV-DO Rev.A
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: 15 May 2013
- OS: BlackBerry
- Hardware: Dual core, 1200 MHz, 2048 MB RAM
- Display: 3.1 inches, 720 x 720 pixels, Capacitive Touchscreen
- Camera 5 megapixels
Sony Xperia ZR
- Announced: 13 May 2013
- 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