Phone Comparison - Lenovo K900 vs Panasonic P51 vs Lenovo Vibe Z K910

general General Info

Manufacturer Lenovo Panasonic Lenovo
Announced January 2013 May 2013 November 2013
Status Available - April 2013 Available - May 2013 Available - January 2014
Colors Black Black, White Black
Form Factor Candybar Candybar Candybar
Dimension 157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
144 x 75 x 8.5 mm
(5.67 x 2.95 x 0.33 in)
7.9 mm thickness
(0.31 in thickness)
Weight 162 g (5.71 oz) 135 g (4.76 oz) 147 g (5.19 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 900 / 2100 HSDPA 2100
4G Network - - LTE
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Android OS, v4.2 (Jelly Bean) Android OS, v4.3 (Jelly Bean)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Quad-core 1.2 GHz Cortex-A7, MTK MT6589 Quad-core 2.2 GHz Krait 400, Qualcomm Snapdragon 800
GPU PowerVR SGX544 PowerVR SGX544 Adreno 330
RAM 2 GB 1 GB 2 GB
Internal Memory 16 GB 4 GB storage 16 GB ROM
External Memory microSD, up to 32 GB microSD, up to 32 GB 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) 720 x 1280 pixels (294 ppi) 1080 x 1920 pixels (401 ppi)
Screen-to-Body Ratio 67.94% 63.69% -
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 8 MP, 3264 x 2448 pixels 13 MP, 4128 x 3096 pixels
Flash dual-LED flash LED flash Dual-LED flash
Features Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face Detection
Video Yes, 1080p@30fps Yes, 1080p Yes, 1080p@30fps
Front Camera Yes, 2 MP [Similar] Yes, 1.3 MP, 720p [Similar] Yes, 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA+ HSDPA, 21 Mbps; HSUPA, 11 Mbps DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 150 Mbps DL
Bluetooth Yes, with A2DP Yes, v4.0 with A2DP, EDR Yes, v4.0 with A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0, USB On-the-go Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS support
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 4 GB storage, 1 GB RAM 16 GB ROM, 2 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 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 not supported

battery Battery

Type Li-Ion battery Li-Ion Battery -
Capacity 2500 mAh 2500 mAh -
Stand by - - -
Talk Time - - -