Phone Comparison - Lenovo K900 vs Xiaomi Mi 4 vs Lenovo Vibe Z2 Pro

general General Info

Manufacturer Lenovo Xiaomi Lenovo
Announced January 2013 July 2014 August 2014
Status Available - April 2013 Available - Q3 2014 Available - September 2014
Colors Black Black, White Black, Gold, White
Form Factor Candybar Candybar Candybar
Dimension 157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
139.2 x 68.5 x 8.9 mm
(5.48 x 2.7 x 0.35 in)
156 x 81.3 x 7.7 mm
(6.14 x 3.2 x 0.3 in)
Weight 162 g (5.71 oz) 149 g (5.26 oz) 179 g (6.31 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 / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100
4G Network - LTE LTE 800 / 850 / 900 / 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, v4.4.3 (KitKat) Android OS, v4.4.2 (KitKat)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801
GPU PowerVR SGX544 Adreno 330 Adreno 330
RAM 2 GB 3 GB 3 GB
Internal Memory 16 GB 16/64 GB 32 GB
External Memory microSD, up to 32 GB No No

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 6.0 inches
Resolution 1080 x 1920 pixels (401 ppi) 1080 x 1920 pixels (441 ppi) 1440 x 2560 pixels (490 ppi)
Screen-to-Body Ratio 67.94% 72.14% 78.10%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 13 MP, autofocus 13 MP, 4128 x 3096 pixels 16 MP, 3456 x 4608 pixels
Flash dual-LED flash Dual-LED Flash optical image stabil
Features Geo-tagging, Touch Focus, Face Detection Auto focus, 1/3' Sensor Size, 1.12┬Ám Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video Yes, 1080p@30fps 2160p, 1080p@30fps, HDR 2160p@30fps, 1080p@30fps, optical stabilization
Front Camera Yes, 2 MP [Similar] 8 MP, 1080p@30fps [Similar] Yes [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA+ DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE HSDPA, 42 Mbps; HSUPA; LTE, Cat4, 50 Mbps UL, 150 Mbps DL
Bluetooth Yes, with A2DP v4.0, 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 a/b/g/n, dual band, Wi-Fi hotspot
USB Yes, microUSB v2.0 microUSB v2.0 (MHL), USB On-the-go microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 16/64 GB, 3 GB RAM 32 GB, 3 GB RAM
Expandable Storage microSD, up to 32 GB No 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 supported

battery Battery

Type Li-Ion battery Non-removable Li-Ion Battery Non-removable Li-Po Battery
Capacity 2500 mAh 3080 mAh 4000 mAh
Stand by - - -
Talk Time - - -