Lenovo IdeaPhone K900 vs Lenovo Vibe X
Market Status: Released
Market Status: Released
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|Device type||Smart phone||Smart phone|
|OS||Android (4.2)||Android (4.2)|
|Dimensions||6.18 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)|
|Weight||5.71 oz (162 g)|
the average is 4.8 oz (138 g)
|4.27 oz (121 g)|
the average is 4.8 oz (138 g)
|Physical size||5.5 inches||5.0 inches|
|Resolution||1080 x 1920 pixels||1080 x 1920 pixels|
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 ppi||441 ppi|
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 LCD||IPS LCD|
|Screen-to-body ratio||68.13 %||64.74 %|
|Colors||16 777 216|
|Features||Light sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass 2)||Light sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass 3)|
|Camera||13 megapixels||13 megapixels|
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.
|Features||Back-illuminated sensor (BSI), Autofocus, Geo tagging||Back-illuminated sensor (BSI), Autofocus, Digital zoom, Geo tagging|
|Camcorder||1920x1080 (1080p HD)||1920x1080 (1080p HD) (30 fps)|
|Front-facing camera||2 megapixels||5 megapixels|
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 Z2580||MediaTek MT6589T|
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, Saltwell||Quad core, 1500 MHz, ARM Cortex-A7|
|Graphics processor||PowerVR SGX 544 MP2||PowerVR SGX544|
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 RAM||2048 MB RAM|
|Built-in storage||16 GB||16 GB|
|Talk time||15.00 hours|
the average is 11 h (675 min)
|Stand-by time||12.5 days (300 hours)|
the average is 20 days (477 h)
|Talk time (3G)||12.00 hours|
the average is 15 h (902 min)
|Filter by||Album, Artist, Playlists||Album, Artist, Playlists|
|Features||Album art cover, Background playback||Album art cover, Background playback|
|Radio||FM, Stereo, RDS||FM|
|Speakers||Earpiece, Loudspeaker||Earpiece, Loudspeaker|
|Built-in online services support||YouTube (upload), Picasa/Google+||YouTube (upload), Picasa/Google+|
|GSM||850, 900, 1800, 1900 MHz||850, 900, 1800, 1900 MHz|
|UMTS||850, 900, 1700/2100, 1900, 2100 MHz|
|Data||HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRS||HSPA (unspecified), UMTS, EDGE, GPRS|
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-GPS||GPS, A-GPS|
|Wi-Fi||802.11 b, g, n||802.11 a, b, g, n, n 5GHz|
|USB||USB 2.0||USB 2.0|
|Features||Mass storage device, USB charging||Mass storage device, USB charging|
|Other||Tethering, Computer sync, OTA sync||Tethering, Computer sync, OTA sync|
|Notifications||Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone||Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone|
|Sensors||Accelerometer, Compass||Accelerometer, Compass|
|Other||Voice dialing, Voice commands, Voice recording||Voice dialing, Voice commands, Voice recording|
|Officially announced||08 Jan 2013|