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Lenovo Vibe X vs Lenovo IdeaPhone K900

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Lenovo Vibe X Remove phone

Posted: 06 Sep 2013
Market Status: Released
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Lenovo IdeaPhone K900 Remove phone

Posted: 14 Jan 2013
Market Status: Released

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Design
Device typeSmart phoneSmart phone 
OSAndroid (4.2)Android (4.2) 
Form factorCandybarCandybar 
Dimensions5.67 x 2.91 x 0.27 inches (144 x 74 x 6.9 mm)6.18 x 3.07 x 0.27 inches (157 x 78 x 6.9 mm) 
Weight4.27 oz (121 g)
the average is 4.8 oz (137 g)
5.71 oz (162 g)
the average is 4.8 oz (137 g)
 
Body materialPolycarbonate  
Side KeysRight: Volume controlLeft: Volume control; Right: Lock/Unlock key 
ColorsGray  
Display
Physical size5.0 inches5.5 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.

441 ppi401 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 ratio64.74 %68.13 % 
Colors16 777 216  
TouchscreenCapacitive, Multi-touchCapacitive, Multi-touch 
FeaturesLight sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass 3)Light sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass 2) 
Camera
Camera13 megapixels13 megapixels 
FlashLEDDual LED 
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, Digital zoom, Geo taggingBack-illuminated sensor (BSI), Autofocus, Geo tagging 
Camcorder1920x1080 (1080p HD) (30 fps)1920x1080 (1080p HD) 
Front-facing camera5 megapixels2 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.

MediaTek MT6589TIntel Atom Z2580 
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.

Quad core, 1500 MHz, ARM Cortex-A7Dual core, 2000 MHz, Saltwell 
Graphics processorPowerVR SGX544PowerVR SGX 544 MP2 
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 (Dual-channel) / LPDDR2 
Built-in storage16 GB16 GB 
Battery
Talk time 15.00 hours
the average is 11 h (671 min)
 
Stand-by time 12.5 days (300 hours)
the average is 20 days (478 h)
 
Talk time (3G) 12.00 hours
the average is 15 h (906 min)
 
Capacity 2500 mAh 
Type Li - Polymer 
specifications continue after the ad
Multimedia
Music player   
Filter byAlbum, Artist, PlaylistsAlbum, Artist, Playlists 
FeaturesAlbum art cover, Background playbackAlbum art cover, Background playback 
Supported formatsMP3MP3 
Video playback   
Supported formatsMPEG4, H.263, H.264MPEG4, H.263, H.264 
RadioFMFM, Stereo, RDS 
SpeakersEarpiece, LoudspeakerEarpiece, Loudspeaker 
YouTube playerYesYes 
Internet browsing
Browser   
supportsHTML, HTML5HTML, HTML5 
Built-in online services supportYouTube (upload), Picasa/Google+YouTube (upload), Picasa/Google+ 
Technology
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS 850, 900, 1700/2100, 1900, 2100 MHz 
DataHSPA (unspecified), UMTS, EDGE, GPRSHSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRS 
Micro SIMYesYes 
Global RoamingYesYes 
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 
NavigationTurn-by-turn navigationYes 
Phone features
PhonebookUnlimited entries, Caller groups, Multiple numbers per contact, Search by both first and last name, Picture ID, Ring IDUnlimited entries, Caller groups, Multiple numbers per contact, Search by both first and last name, Picture ID, Ring ID 
OrganizerCalendar, Alarm, CalculatorCalendar, Alarm, Calculator 
MessagingSMS, MMS, Threaded view, Predictive text inputSMS, MMS, Threaded view, Predictive text input 
E-mailIMAP, POP3, SMTP, Microsoft ExchangeIMAP, POP3, SMTP, Microsoft Exchange 
Instant MessagingHangouts / Google TalkHangouts / Google Talk 
Connectivity
Bluetooth4.03.0 
Wi-Fi802.11 a, b, g, n, n 5GHz802.11 b, g, n 
Mobile hotspotYesYes 
USBUSB 2.0USB 2.0 
ConnectormicroUSBmicroUSB 
FeaturesMass storage device, USB chargingMass storage device, USB charging 
Headphones connector3.5mm3.5mm 
Charging connectormicroUSBmicroUSB 
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 
Regulatory Approval
FCC approval

FCC approval - The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC's jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions. Every wireless phone device that that is sold in the U.S. has to be tested and approved for sale by the FCC.

   
Date approved

Date approved - Shows the date when the particular phone is approved by the Federal Communications Commission

17 Oct 201329 Oct 2013 
FCC ID value: YCNS960 linkFCC ID value: YCNK900 link 
FCC measured SAR

FCC measured SAR - The exposure standard for mobile devices employs a unit of measurement known as the Specific Absorption Rate, or SAR. The SAR limit stated in the international guidelines is 2.0 W/ kg*. Tests for SAR are conducted using standard operating positions with the device transmitting at its highest certified power level in all tested frequency bands. Although the SAR is determined at the highest certified power level, the actual SAR of the device while operating can be well below the maximum value.

   
Head0.40 W/kg0.42 W/kg 
Body1.08 W/kg1.19 W/kg 
Product Specific Use1.48 W/kg1.25 W/kg 
Simultaneous Transmission1.58 W/kg1.40 W/kg 
Availability
Officially announced 08 Jan 2013 

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