Phone Comparison - Microsoft Lumia 640 XL LTE Dual SIM vs Xiaomi Redmi Note 2 Prime vs Xiaomi Mi 4c

general General Info

Manufacturer Microsoft Xiaomi Xiaomi
Announced March 2015 August 2015 September 2015
Status Available - April 2015 Available - August 2015 Available - September 2015
Price Rs. 14,999 ($220.57) [Similarly Priced] Rs. 10,840 ($159.00) [Similarly Priced] Rs. 7,500 ($110.00) [Similarly Priced]
Colors Matte cyan, Orange, Black, Matte white, Glossy white White, Blue, Yellow, Pink, Mint Green Black, White, Blue, Yellow, Pink
Form Factor Candybar Candybar Candybar
Dimension 157.9 x 81.5 x 9 mm
(6.22 x 3.21 x 0.35 in)
152 x 76 x 8.3 mm
(5.98 x 2.99 x 0.33 in)
138.1 x 69.6 x 7.8 mm
(5.44 x 2.74 x 0.31 in)
Weight 171 g (6.03 oz) 160 g (5.64 oz) 132 g (4.66 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA 1900 / 2000
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100
TD-SCDMA 1900 / 2000
4G Network LTE LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 38(2600), 39(1900), 40(2300), 41(2500)
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Microsoft Windows Phone 8.1 with Lumia Denim Android OS, v5.0 (Lollipop) Android OS, v5.1.1 (Lollipop)
Processor Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Octa-core 2.2 GHz Cortex-A53, Mediatek MT6795 Quad-core 1.44 GHz Cortex-A53 & dual-core 1.82 GHz Cortex-A57, Qualcomm MSM8992 Snapdragon 808
GPU Adreno 305 PowerVR G6200 Adreno 418
RAM 1 GB 2 GB 2/3 GB
Internal Memory 8 GB 32 GB 16/32 GB
External Memory microSD, up to 128 GB Yes No

display Display

Type IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Scratch-Resistant Glass
Colors 16M colors 16M colors 16M colors
Size 5.7 inches 5.5 inches 5.0 inches
Resolution 720 x 1280 pixels (259 ppi) 1080 x 1920 pixels (401 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 68.88% 72.02% 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 Yes Dual-LED (dual tone)
Features Carl Zeiss Optics, 1/3'' sensor size Phase Detection Auto-focus (PDAF), Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR
Video 1080p@30fps 1080p@30fps 1080p@30fps, 480p@120fps
Front Camera 5 MP, 1080p [Similar] 5 MP, 720p [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA, LTE HSPA, LTE Cat4 150/50 Mbps
Bluetooth v4.0, A2DP v4.0, A2DP, LE v4.1, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
USB microUSB v2.0 microUSB v2.0 microUSB v2.0, USB Host
GPS Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS, Beidou
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB, 1 GB RAM 32 GB, 2 GB RAM 16/32 GB, 2/3 GB RAM
Expandable Storage microSD, up to 128 GB Yes 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 supported NFC not supported NFC supported

battery Battery

Type Li-Ion Battery Li-Po Battery Non-removable Li-Ion Battery
Capacity 3000 mAh 3060 mAh 3080 mAh
Stand by Up to 936 h (2G)
Up to 936 h (3G)
Up to 144 h (3G) -
Talk Time Up to 31 h 20 min (2G)
Up to 23 h 40 min (3G)
Up to 11 h 30 min (3G) -