Phone Comparison - Microsoft Lumia 640 Dual SIM vs Microsoft Lumia 640 XL Dual SIM vs Xiaomi Mi 4c

general General Info

Manufacturer Microsoft Microsoft Xiaomi
Announced March 2015 March 2015 September 2015
Status Available - April 2015 Available - April 2015 Available - September 2015
Price Rs. 8,999 ($132.34) [Similarly Priced] Rs. 12,999 ($191.16) [Similarly Priced] Rs. 7,500 ($110.00) [Similarly Priced]
Colors Yes Matte cyan, Orange, Black, Matte white, Glossy white Black, White, Blue, Yellow, Pink
Form Factor Candybar Candybar Candybar
Dimension 141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 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 145 g (5.11 oz) 171 g (6.03 oz) 132 g (4.66 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 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 band 1(2100), 3(1800), 38(2600), 39(1900), 40(2300), 41(2500)
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

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

display Display

Type IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD Capacitive Touchscreen, Corning Scratch-Resistant Glass
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 5.7 inches 5.0 inches
Resolution 720 x 1280 pixels (294 ppi) 720 x 1280 pixels (259 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 67.43% 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 8 MP, 3264 x 2448 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels
Flash LED flash LED Flash Dual-LED (dual tone)
Features Auto focus, 1/4'' Sensor Size Auto focus, 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, 480p@120fps
Front Camera 1 MP, 720p [Similar] 5 MP, 1080p [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps HSPA 42.2/5.76 Mbps HSPA, LTE Cat4 150/50 Mbps
Bluetooth v4.0, A2DP v4.0, A2DP v4.1, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 b/g/n, DLNA, 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 8 GB, 1 GB RAM 16/32 GB, 2/3 GB RAM
Expandable Storage microSD, up to 128 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 supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Non-removable Li-Ion Battery
Capacity 2500 mAh 3000 mAh 3080 mAh
Stand by Up to 840 h (2G)
Up to 840 h (3G)
Up to 936 h (2G)
Up to 936 h (3G)
-
Talk Time Up to 27 h 30 min (2G)
Up to 20 h 30 min (3G)
Up to 31 h 20 min (2G)
Up to 23 h 40 min (3G)
-