Phone Comparison - Lenovo K900 vs Asus Zenfone 6 vs Panasonic P81

general General Info

Manufacturer Lenovo Asus Panasonic
Announced January 2013 January 2014 June 2014
Status Available - April 2013 Available - June 2014 Available - June 2014
Colors Black Black, White, Red, Gold Black
Form Factor Candybar Candybar Candybar
Dimension 157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
166.9 x 84.3 x 5.5-9.9 mm
(6.57 x 3.32 x 0.22-0.39 in)
7.9 mm thickness
(0.31 in thickness)
Weight 162 g (5.71 oz) 196 g (6.91 oz) -
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 900 / 2100
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, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) Android OS, v4.2.2 (Jelly Bean)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Dual-core 2 GHz, Intel Atom Z2580 Octa-core 1.7 GHz Cortex-A7, Mediatek MT6592
GPU PowerVR SGX544 PowerVR SGX544MP2 Mali-450MP4
RAM 2 GB 1/2 GB 1 GB
Internal Memory 16 GB 8/16/32 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 64 GB microSD, up to 32 GB

display Display

Type IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 6.0 inches 5.5 inches
Resolution 1080 x 1920 pixels (401 ppi) 720 x 1280 pixels (245 ppi) 720 x 1280 pixels (267 ppi)
Screen-to-Body Ratio 67.94% 70.40% -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio No 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, 4128 x 3096 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 Auto focus, Geo-tagging
Video Yes, 1080p@30fps Yes Yes, 1080p@30fps
Front Camera Yes, 2 MP [Similar] Yes, 2 MP [Similar] Yes, 2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA+ HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, with A2DP Yes, v4.0 with A2DP, EDR Yes, v3.0 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 Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS support
Browser HTML5 HTML HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 8/16/32 GB, 1/2 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 64 GB 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 Non-removable Li-Ion Battery
Capacity 2500 mAh 3300 mAh 2500 mAh
Stand by - Up to 398 h (3G) -
Talk Time - Up to 28 h (3G) -