Phone Comparison - Lenovo K900 vs Lenovo Vibe X2 vs Sony Xperia Z4

general General Info

Manufacturer Lenovo Lenovo Sony
Announced January 2013 September 2014 Expected Announcement - Q1 2015
Status Available - April 2013 Available - October 2014 Rumored - Q2 2015
Price - - Rs. 35,999 ($529.40) [Similarly Priced]
Colors Black White, Gold, Red, Dark Grey Black, White
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)
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Weight 162 g (5.71 oz) 120 g (4.23 oz) -
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100
4G Network - LTE 800 / 1800 / 2100 / 2600 LTE 700/800/850/900/1700/1800/1900/2100/2600 (1/2/3/4/5/7/8/13/17/20)
LTE 700/800/850/900/1700/1800/1900/2100/2600 (1/2/3/4/5/7/8/17/20)
LTE 700 / 850 / 900 / 1800 / 2100 / 2600
LTE 700 / 1700 / 1900 / 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM
Build Features - - - IP68 certified - dust proof and water resistant over 1 meter and 30 minutes

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Android OS, v4.4 (KitKat) Android OS, v5.0 (Lollipop)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Octa-core 2.0 GHz, MediatTek MT6595m True8Core , Qualcomm Snapdragon 810
GPU PowerVR SGX544 PowerVR G600 Adreno 430
RAM 2 GB 2 GB 4 GB
Internal Memory 16 GB 32 GB 32/64 GB
External Memory microSD, up to 32 GB No microSD, up to 128 GB

display Display

Type IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen, Triluminos display, X-Reality Engine
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.0 inches 5.1 inches
Resolution 1080 x 1920 pixels (401 ppi) 1080 x 1920 pixels (441 ppi) 1920 x 1080 pixels (432 ppi)
Screen-to-Body Ratio 67.94% 71.52% -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio - FM radio with RDS
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 20.7 MP, 5248 х 3936 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, 1/2.3' Sensor Size, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama
Video Yes, 1080p@30fps 1080p@30fps 2160p@30fps, 1080p@60fps, 720p@120fps, HDR
Front Camera Yes, 2 MP [Similar] 5 MP [Similar] 5 MP, 1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Up to 107 kbps
Edge Yes Yes Up to 296 kbps
3G HSPA+ HSDPA, 42 Mbps; HSUPA; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps
Bluetooth Yes, with A2DP v4.0, A2DP v4.0, A2DP, apt-X
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 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
USB Yes, microUSB v2.0 microUSB v2.0 microUSB v2.0 (MHL 3 TV-out), USB Host
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, Beidou
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 32 GB, 2 GB RAM 32/64 GB, 4 GB RAM
Expandable Storage microSD, up to 32 GB No microSD, up to 128 GB
USB OTG - - Supported

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 supported

battery Battery

Type Li-Ion battery Non-removable Li-Po Battery Non-removable Li-Ion battery
Capacity 2500 mAh 2300 mAh 2930 mAh
Stand by - Up to 228 h (2G)
Up to 216 h (3G)
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Talk Time - Up to 17 h (2G)
Up to 19 h (3G)
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