Phone Comparison - Asus Zenfone 4 vs Xiaomi Redmi Note 4G vs Lenovo Vibe X2

general General Info

Manufacturer Asus Xiaomi Lenovo
Announced January 2014 August 2014 September 2014
Status Available - June 2014 Available - November 2014 Available - October 2014
Colors Black, White, Red, Blue, Yellow Black/White White, Gold, Red, Dark Grey
Form Factor Candybar Candybar Candybar
Dimension 124.4 x 61.4 x 6.3-11.2
(4.9 x 2.42 x 0.25-0.44)
154 x 78.7 x 9.5 mm
(6.06 x 3.1 x 0.37 in)
140.2 x 68.6 x 7.3 mm
(5.52 x 2.7 x 0.29 in)
Weight 115 g (4.06 oz) 199 g (7.02 oz) 120 g (4.23 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA 1900 / 2000 HSDPA 850 / 900 / 1700 / 1900 / 2100
4G Network - TD-LTE 1900 / 2300 / 2600 LTE 800 / 1800 / 2100 / 2600
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) Android OS, v4.2 (Jelly Bean) Android OS, v4.4 (KitKat)
Processor Dual-core 1.2 GHz, Intel Atom Z2520 Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400 Octa-core 2.0 GHz, MediatTek MT6595m True8Core
GPU PowerVR SGX544MP2 Adreno 305 PowerVR G600
RAM 1 GB 2 GB 2 GB
Internal Memory 8 GB 8 GB 32 GB
External Memory microSD, up to 64 GB microSD, up to 64 GB No

display Display

Type LCD Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 5.5 inches 5.0 inches
Resolution 480 x 800 pixels (233 ppi) 720 x 1280 pixels (267 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 59.74% 68.82% 71.52%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592 x 1944 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4160 x 3120 pixels
Flash No LED flash LED flash
Features Auto focus, Geo-tagging, Panorama Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video Yes, 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera Yes, VGA [Similar] 5 MP [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps TD-SCDMA; LTE HSDPA, 42 Mbps; HSUPA; LTE, Cat4, 50 Mbps UL, 150 Mbps DL
Bluetooth Yes, v4.0 with A2DP, EDR v4.0, A2DP, LE v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n/ac, dual band, Wi-Fi hotspot
USB Yes, microUSB v2.0 microUSB v2.0, USB On-the-go microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS
Browser HTML HTML5 HTML5

memory User Memory

Internal 8 GB, 1 GB RAM 8 GB, 2 GB RAM 32 GB, 2 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 64 GB 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 not supported NFC not supported

battery Battery

Type Li-Po Battery Li-Po Battery Non-removable Li-Po Battery
Capacity 1200/1600 mAh 3200 mAh 2300 mAh
Stand by Up to 192 h Up to 775 h (3G) Up to 228 h (2G)
Up to 216 h (3G)
Talk Time Up to 10 h Up to 38 h (2G)
Up to 14 h (3G)
Up to 17 h (2G)
Up to 19 h (3G)