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Lenovo IdeaPhone K900 vs Lenovo Vibe X

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Lenovo IdeaPhone K900 Remove phone

Posted: 14 Jan 2013
Market Status: Released
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Lenovo Vibe X Remove phone

Posted: 06 Sep 2013
Market Status: Released

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Design
Device typeSmart phoneSmart phone 
OSAndroid (4.2)Android (4.2) 
Dimensions6.18 x 3.07 x 0.27 inches (157 x 78 x 6.9 mm)5.67 x 2.91 x 0.27 inches (144 x 74 x 6.9 mm) 
Weight5.71 oz (162 g)
the average is 4.8 oz (138 g)
4.27 oz (121 g)
the average is 4.8 oz (138 g)
 
Body material Polycarbonate 
Display
Physical size5.5 inches5.0 inches 
Resolution1080 x 1920 pixels1080 x 1920 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.

401 ppi441 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.

IPS LCDIPS LCD 
Screen-to-body ratio68.13 %64.74 % 
Colors 16 777 216 
TouchscreenMulti-touchMulti-touch 
FeaturesLight sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass 2)Light sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass 3) 
Camera
Camera13 megapixels13 megapixels 
FlashDual LEDLED 
Aperture size

Aperture size - The aperture of a camera is the opening through which light travels before it reaches the camera sensor. The smaller the number is, the bigger this opening is, allowing for more light to pass.

F1.8  
FeaturesBack-illuminated sensor (BSI), Autofocus, Geo taggingBack-illuminated sensor (BSI), Autofocus, Digital zoom, Geo tagging 
Camcorder1920x1080 (1080p HD)1920x1080 (1080p HD) (30 fps) 
Front-facing camera2 megapixels5 megapixels 
Hardware
System chip

System chip - Most modern handsets use an advanced chip that includes many of the device’s hardware modules like the processor, Wi-Fi, Bluetooth and sometimes even the wireless radio. This field shows what particular system chip (or System-on-a-Chip) is used in the phone.

Intel Atom Z2580MediaTek MT6589T 
Processor

Processor - The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.

Dual core, 2000 MHz, SaltwellQuad core, 1500 MHz, ARM Cortex-A7 
Graphics processorPowerVR SGX 544 MP2PowerVR SGX544 
System memory

System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.

2048 MB RAM2048 MB RAM 
Built-in storage16 GB16 GB 
Battery
Talk time15.00 hours
the average is 11 h (675 min)
  
Stand-by time12.5 days (300 hours)
the average is 20 days (477 h)
  
Talk time (3G)12.00 hours
the average is 15 h (902 min)
  
Capacity2500 mAh  
specifications continue after the ad
Multimedia
Music player   
Filter byAlbum, Artist, PlaylistsAlbum, Artist, Playlists 
FeaturesAlbum art cover, Background playbackAlbum art cover, Background playback 
RadioFM, Stereo, RDSFM 
SpeakersEarpiece, LoudspeakerEarpiece, Loudspeaker 
YouTube playerYesYes 
Internet browsing
Built-in online services supportYouTube (upload), Picasa/Google+YouTube (upload), Picasa/Google+ 
Technology
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS850, 900, 1700/2100, 1900, 2100 MHz  
DataHSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRSHSPA (unspecified), UMTS, EDGE, GPRS 
Micro SIMYesYes 
Positioning

Positioning - This field shows the positioning systems supported by the device. There are three main types: GPS, A-GPS and GLONASS. GPS - This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather. A-GPS - A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization. GLONASS - GLONASS is a global positioning system, developed by the Russian Federation. It’s very similar to GPS, but isn’t so popular in cell phones.

GPS, A-GPSGPS, A-GPS 
NavigationYesTurn-by-turn navigation 
Connectivity
Bluetooth3.04.0 
Wi-Fi802.11 b, g, n802.11 a, b, g, n, n 5GHz 
Mobile hotspotYesYes 
USBUSB 2.0USB 2.0 
ConnectormicroUSBmicroUSB 
FeaturesMass storage device, USB chargingMass storage device, USB charging 
OtherTethering, Computer sync, OTA syncTethering, Computer sync, OTA sync 
Other features
NotificationsHaptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, SpeakerphoneHaptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone 
SensorsAccelerometer, CompassAccelerometer, Compass 
OtherVoice dialing, Voice commands, Voice recordingVoice dialing, Voice commands, Voice recording 
Availability
Officially announced08 Jan 2013  

To see the full specifications with in-depth details click here.

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