Phone Comparison - Xiaomi Redmi Note 4G vs Microsoft Lumia 640 XL LTE Dual SIM vs Xiaomi Mi 4i

general General Info

Manufacturer Xiaomi Microsoft Xiaomi
Announced August 2014 March 2015 April 2015
Status Available - November 2014 Available - April 2015 Available - April 2015
Price - Rs. 14,999 ($220.57) [Similarly Priced] Rs. 8,999 ($132.34) [Similarly Priced]
Colors Black/White Matte cyan, Orange, Black, Matte white, Glossy white Black, White, Blue, Yellow, Pink
Form Factor Candybar Candybar Candybar
Dimension 154 x 78.7 x 9.5 mm
(6.06 x 3.1 x 0.37 in)
157.9 x 81.5 x 9 mm
(6.22 x 3.21 x 0.35 in)
138.1 x 69.6 x 7.8 mm
(5.44 x 2.74 x 0.31 in)
Weight 199 g (7.02 oz) 171 g (6.03 oz) 130 g (4.59 oz)
2G Network GSM 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network TD-SCDMA 1900 / 2000 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network TD-LTE 1900 / 2300 / 2600 LTE LTE
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Microsoft Windows Phone 8.1 with Lumia Denim Android OS, v5.0 (Lollipop)
Processor Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400 Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615
GPU Adreno 305 Adreno 305 Adreno 405
RAM 2 GB 1 GB 2 GB
Internal Memory 8 GB 8 GB 16/32 GB
External Memory microSD, up to 64 GB microSD, up to 128 GB No

display Display

Type IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.7 inches 5.0 inches
Resolution 720 x 1280 pixels (267 ppi) 720 x 1280 pixels (259 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 68.82% 68.88% 71.57%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM 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, 4128 x 3096 pixels
Flash LED flash LED Flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR Carl Zeiss Optics, 1/3'' sensor size 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, 1080p [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

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

memory User Memory

Internal 8 GB, 2 GB RAM 8 GB, 1 GB RAM 16/32 GB, 2 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 128 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 Li-Po Battery Li-Ion Battery Li-Po Battery
Capacity 3200 mAh 3000 mAh 3120 mAh
Stand by Up to 775 h (3G) Up to 936 h (2G)
Up to 936 h (3G)
-
Talk Time Up to 38 h (2G)
Up to 14 h (3G)
Up to 31 h 20 min (2G)
Up to 23 h 40 min (3G)
-