Phone Comparison - Xiaomi Redmi Note vs Xiaomi Mi 4 vs Lenovo Vibe X2

general General Info

Manufacturer Xiaomi Xiaomi Lenovo
Announced March 2014 July 2014 September 2014
Status Available - March 2014 Available - Q3 2014 Available - October 2014
Colors Various Black, White White, Gold, Red, Dark Grey
Form Factor Candybar Candybar Candybar
Dimension 154 x 78.7 x 9.45 mm
(6.06 x 3.1 x 0.37 in)
139.2 x 68.5 x 8.9 mm
(5.48 x 2.7 x 0.35 in)
140.2 x 68.6 x 7.3 mm
(5.52 x 2.7 x 0.29 in)
Weight 199 g (7.02 oz) 149 g (5.26 oz) 120 g (4.23 oz)
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100
4G Network - LTE LTE 800 / 1800 / 2100 / 2600
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Android OS, v4.4.3 (KitKat) Android OS, v4.4 (KitKat)
Processor Octa-core 1.4 GHz Cortex-A7 / Octa-core 1.7 GHz Cortex-A7, Mediatek MT6592 Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 Octa-core 2.0 GHz, MediatTek MT6595m True8Core
GPU Mali-450MP4 Adreno 330 PowerVR G600
RAM 1/2 GB 3 GB 2 GB
Internal Memory 8 GB 16/64 GB 32 GB
External Memory microSD, up to 32 GB No No

display Display

Type IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.0 inches 5.0 inches
Resolution 720 x 1280 pixels (267 ppi) 1080 x 1920 pixels (441 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 68.82% 72.14% 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 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4160 x 3120 pixels
Flash LED flash Dual-LED Flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR Auto focus, 1/3' Sensor Size, 1.12┬Ám Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video 1080p@30fps 2160p, 1080p@30fps, HDR 1080p@30fps
Front Camera 5 MP [Similar] 8 MP, 1080p@30fps [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA+ DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE HSDPA, 42 Mbps; HSUPA; LTE, Cat4, 50 Mbps UL, 150 Mbps DL
Bluetooth v4.0, A2DP, LE v4.0, A2DP 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, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n/ac, dual band, Wi-Fi hotspot
USB microUSB v2.0, USB On-the-go microUSB v2.0 (MHL), USB On-the-go microUSB v2.0
GPS Yes, with A-GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB, 1/2 GB RAM 16/64 GB, 3 GB RAM 32 GB, 2 GB RAM
Expandable Storage microSD, up to 32 GB No No
USB OTG Supported 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-Po Battery Non-removable Li-Ion Battery Non-removable Li-Po Battery
Capacity 3100 mAh 3080 mAh 2300 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)