Phone Comparison - Lenovo K900 vs Lenovo S820 vs Asus Zenfone 5

general General Info

Manufacturer Lenovo Lenovo Asus
Announced January 2013 May 2013 January 2014
Status Available - April 2013 Available - May 2013 Available - June 2014
Colors Black Flamingo red Black, White, Red, Blue, Gold
Form Factor Candybar Candybar Candybar
Dimension 157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
139.5 x 69.7 x 9 mm
(5.49 x 2.74 x 0.35 in)
148.2 x 72.8 x 5.5-10.3
(5.83 x 2.87 x 0.22-0.41)
Weight 162 g (5.71 oz) 143 g (5.04 oz) 140 g (4.94 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, 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), upgradable to v4.4.2 (KitKat)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Quad-core 1.2 GHz, MTK 6589W Dual-core 2.0 GHz / Dual-core 1.6 GHz, Intel Atom Z2580/Z2560
GPU PowerVR SGX544 PowerVR SGX544 PowerVR SGX544MP2
RAM 2 GB 1 GB 1/2 GB
Internal Memory 16 GB 4 GB 8/16 GB
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 64 GB

display Display

Type IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 4.7 inches 5.0 inches
Resolution 1080 x 1920 pixels (401 ppi) 720 x 1280 pixels (312 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 67.94% 62.82% 63.76%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio FM radio; built-in antenna FM Radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, autofocus 12 MP, 4000 x 3000 pixels 8 MP, 3264 x 2448 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, Touch Focus, Face Detection
Video Yes, 1080p@30fps Yes Yes
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, HSUPA HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, with A2DP Yes, v3.0 with A2DP Yes, v4.0 with A2DP, EDR
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual band 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 HTML

memory User Memory

Internal 16 GB, 2 GB RAM 4 GB, 1 GB RAM 8/16 GB, 1/2 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 64 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 Li-Po Battery Non-removable Li-Po Battery
Capacity 2500 mAh 2000 mAh 2110 mAh
Stand by - Up to 140 h (2G)
Up to 140 h (3G)
Up to 353 h (3G)
Talk Time - Up to 22 h (2G)
Up to 10 h (3G)
Up to 18 h 30 min (3G)