Phone Comparison - Lenovo K900 vs Sony Xperia Z Ultra vs Lenovo Vibe X2

general General Info

Manufacturer Lenovo Sony Lenovo
Announced January 2013 June 2013 September 2014
Status Available - April 2013 Available - July 2013 Available - October 2014
Colors Black Black, White, Purple White, Gold, Red, Dark Grey
Form Factor Candybar Candybar Candybar
Dimension 157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
179.4 x 92.2 x 6.5 mm
(7.06 x 3.63 x 0.26 in)
140.2 x 68.6 x 7.3 mm
(5.52 x 2.7 x 0.29 in)
Weight 162 g (5.71 oz) 212 g (7.48 oz) 120 g (4.23 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - All Versions GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100 - All Versions HSDPA 850 / 900 / 1700 / 1900 / 2100
4G Network - LTE 700 / 850 / 1700 / 1900 / 2100 / 2600 / 900 - C6806 LTE 800 / 1800 / 2100 / 2600
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM
Build Features - - IP58 Certified - Dust and Water-proof
- Water Resistant up to 1 Meter and 30 Minutes
-

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Android OS, v4.2 (Jelly Bean) Android OS, v4.4 (KitKat)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Quad-core 2.2 GHz Krait 400, Qualcomm MSM8274/MSM8974 Snapdragon 800 Octa-core 2.0 GHz, MediatTek MT6595m True8Core
GPU PowerVR SGX544 Adreno 330 PowerVR G600
RAM 2 GB 2 GB 2 GB
Internal Memory 16 GB 16 GB 32 GB
External Memory microSD, up to 32 GB microSD, up to 64 GB No

display Display

Type IPS LCD capacitive touchscreen Capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 6.44 inches 5.0 inches
Resolution 1080 x 1920 pixels (401 ppi) 1080 x 1920 pixels (342 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 67.94% 69.15% 71.52%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

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

connectivity Connectivity and Data Rate

GPRS Yes Up to 107 kbps Yes
Edge Yes Up to 296 kbps Yes
3G HSPA+ HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSDPA, 42 Mbps; HSUPA; LTE, Cat4, 50 Mbps UL, 150 Mbps DL
Bluetooth Yes, with A2DP Yes, v4.0 with A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n/ac, dual band, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 (MHL), USB On-the-go microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 16 GB, 2 GB RAM 32 GB, 2 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 64 GB No
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 supported NFC not supported

battery Battery

Type Li-Ion battery Non-removable Li-Ion Battery Non-removable Li-Po Battery
Capacity 2500 mAh 3050 mAh 2300 mAh
Stand by - Up to 790 h (2G)
Up to 820 h (3G)
Up to 228 h (2G)
Up to 216 h (3G)
Talk Time - Up to 14 h (2G)
Up to 16 h (3G)
Up to 17 h (2G)
Up to 19 h (3G)