Phone Comparison - Lenovo K900 vs Lenovo Vibe X2 vs Lenovo S856

general General Info

Manufacturer Lenovo Lenovo Lenovo
Announced January 2013 September 2014 October 2014
Status Available - April 2013 Available - October 2014 Available - October 2014
Price - - Rs. 5,770 ($84.69) [Similarly Priced]
Colors Black White, Gold, Red, Dark Grey Silver
Form Factor Candybar Candybar Candybar
Dimension 157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
140.2 x 68.6 x 7.3 mm
(5.52 x 2.7 x 0.29 in)
151 x 77.8 x 9 mm
(5.94 x 3.06 x 0.35 in)
Weight 162 g (5.71 oz) 120 g (4.23 oz) 175 g (6.17 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100 HSDPA 900 / 2100
4G Network - LTE 800 / 1800 / 2100 / 2600 LTE 800 / 1800 / 2100 / 2600
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Android OS, v4.4 (KitKat) Android OS, v4.4.2 (KitKat)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Octa-core 2.0 GHz, MediatTek MT6595m True8Core Quad-core 1.2 GHz Cortex-A7, Qualcomm MSM8926 Snapdragon 400
GPU PowerVR SGX544 PowerVR G600 Adreno 305
RAM 2 GB 2 GB 1 GB
Internal Memory 16 GB 32 GB 8 GB
External Memory microSD, up to 32 GB No microSD, up to 32 GB

display Display

Type IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.0 inches 5.5 inches
Resolution 1080 x 1920 pixels (401 ppi) 1080 x 1920 pixels (441 ppi) 720 x 1280 pixels (267 ppi)
Screen-to-Body Ratio 67.94% 71.52% 71.00%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio - -
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, autofocus 13 MP, 4160 x 3120 pixels 8 MP, 3264 x 2448 pixels
Flash dual-LED flash LED flash LED flash
Features Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection
Video Yes, 1080p@30fps 1080p@30fps Yes
Front Camera Yes, 2 MP [Similar] 5 MP [Similar] 1.6 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA+ HSDPA, 42 Mbps; HSUPA; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSPA 21.1/5.76 Mbps, LTE Cat3 100/50 MbpsPA, HSUPA1 Mbps, HSUPA 5.76 Mbps
Bluetooth Yes, with A2DP v4.0, A2DP v4.0
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot Wi-Fi 802.11 b/g/n/ac, dual band, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
USB Yes, microUSB v2.0 microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS Yes, with A-GPS
Browser HTML5 HTML5 HTML

memory User Memory

Internal 16 GB, 2 GB RAM 32 GB, 2 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB No microSD, up to 32 GB

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Li-Ion battery Non-removable Li-Po Battery Li-Po Battery
Capacity 2500 mAh 2300 mAh 2500 mAh
Stand by - Up to 228 h (2G)
Up to 216 h (3G)
Up to 456 h (2G)
Up to 312 h (3G)
Talk Time - Up to 17 h (2G)
Up to 19 h (3G)
Up to 24 h (2G)
Up to 25 h (3G)