Phone Comparison - Lenovo K900 vs Sony Xperia Z Ultra vs Asus Zenfone 6

general General Info

Manufacturer Lenovo Sony Asus
Announced January 2013 June 2013 January 2014
Status Available - April 2013 Available - July 2013 Available - June 2014
Colors Black Black, White, Purple Black, White, Red, Gold
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)
166.9 x 84.3 x 5.5-9.9 mm
(6.57 x 3.32 x 0.22-0.39 in)
Weight 162 g (5.71 oz) 212 g (7.48 oz) 196 g (6.91 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 / 1900 / 2100
4G Network - LTE 700 / 850 / 1700 / 1900 / 2100 / 2600 / 900 - C6806 -
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, 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, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Quad-core 2.2 GHz Krait 400, Qualcomm MSM8274/MSM8974 Snapdragon 800 Dual-core 2 GHz, Intel Atom Z2580
GPU PowerVR SGX544 Adreno 330 PowerVR SGX544MP2
RAM 2 GB 2 GB 1/2 GB
Internal Memory 16 GB 16 GB 8/16/32 GB
External Memory microSD, up to 32 GB microSD, up to 64 GB microSD, up to 64 GB

display Display

Type IPS LCD capacitive touchscreen Capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 6.44 inches 6.0 inches
Resolution 1080 x 1920 pixels (401 ppi) 1080 x 1920 pixels (342 ppi) 720 x 1280 pixels (245 ppi)
Screen-to-Body Ratio 67.94% 69.15% 70.40%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio Stereo FM radio with RDS No
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 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
Video Yes, 1080p@30fps Yes, 1080p@30fps, video stabilization, HDR Yes
Front Camera Yes, 2 MP [Similar] Yes, 2 MP, 1080p@30fps [Similar] Yes, 2 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, 42.2 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, with A2DP Yes, v4.0 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/ac, dual-band, Wi-Fi Direct, DLNA, 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 (MHL), USB On-the-go Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support and GLONASS Yes, with A-GPS support
Browser HTML5 HTML5 HTML

memory User Memory

Internal 16 GB, 2 GB RAM 16 GB, 2 GB RAM 8/16/32 GB, 1/2 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 64 GB microSD, up to 64 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 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 3300 mAh
Stand by - Up to 790 h (2G)
Up to 820 h (3G)
Up to 398 h (3G)
Talk Time - Up to 14 h (2G)
Up to 16 h (3G)
Up to 28 h (3G)