Phone Comparison - Lenovo Vibe X2 vs Asus Zenfone 2 ZE551ML vs Xiaomi Mi 4i

general General Info

Manufacturer Lenovo Asus Xiaomi
Announced September 2014 January 2015 April 2015
Status Available - October 2014 Available - March 2015 Available - April 2015
Price - Rs. 14,999 ($220.57) [Similarly Priced] Rs. 8,999 ($132.34) [Similarly Priced]
Colors White, Gold, Red, Dark Grey Osmium Black, Sheer Gold, Glacier Gray, Glamor Red, Ceramic Whit Black, White, Blue, Yellow, Pink
Form Factor Candybar Candybar Candybar
Dimension 140.2 x 68.6 x 7.3 mm
(5.52 x 2.7 x 0.29 in)
152.5 x 77.2 x 10.9 mm
(6 x 3.04 x 0.43 in)
138.1 x 69.6 x 7.8 mm
(5.44 x 2.74 x 0.31 in)
Weight 120 g (4.23 oz) 170 g (6 oz) 130 g (4.59 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1700 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE 800 / 1800 / 2100 / 2600 LTE 700 / 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600
(Bands 1, 2, 3, 4, 5, 7, 8, 9, 17, 18, 19, 20, 28, 29)
LTE
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.4 (KitKat) Android OS, v5.0 (Lollipop) Android OS, v5.0 (Lollipop)
Processor Octa-core 2.0 GHz, MediatTek MT6595m True8Core Quad-core 2.3 GHz
Quad-core 1.8 GHz, Intel Atom Z3580
Intel Atom Z3560
Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615
GPU PowerVR G600 PowerVR G6430 Adreno 405
RAM 2 GB 2/4 GB 2 GB
Internal Memory 32 GB 16/32/64 GB 16/32 GB
External Memory No microSD, up to 64 GB No

display Display

Type IPS LCD capacitive touchscreen IPS Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 5.5 inches 5.0 inches
Resolution 1080 x 1920 pixels (441 ppi) 1080 x 1920 pixels (401 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 71.52% 70.67% 71.57%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 13 MP, 4160 x 3120 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels
Flash LED flash dual-LED (dual tone) LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 5 MP [Similar] 5 MP [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

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

memory User Memory

Internal 32 GB, 2 GB RAM 16/32/64 GB, 2/4 GB RAM 16/32 GB, 2 GB RAM
Expandable Storage No 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 supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery Non-removable Li-Po Battery Li-Po Battery
Capacity 2300 mAh 3000 mAh 3120 mAh
Stand by Up to 228 h (2G)
Up to 216 h (3G)
- -
Talk Time Up to 17 h (2G)
Up to 19 h (3G)
- -