Phone Comparison - Microsoft Lumia 640 LTE vs Xiaomi Redmi Note 2 Prime vs Microsoft Lumia 650

general General Info

Manufacturer Microsoft Xiaomi Microsoft
Announced March 2015 August 2015 February 2016
Status Available - April 2015 Available - August 2015 Available - April 2016
Price Rs. 7,999 ($117.63) [Similarly Priced] Rs. 10,840 ($159.00) [Similarly Priced] Rs. 9,999 ($147.04) [Similarly Priced]
Colors Yes White, Blue, Yellow, Pink, Mint Green Black, White
Form Factor Candybar Candybar Candybar
Dimension 141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 in)
152 x 76 x 8.3 mm
(5.98 x 2.99 x 0.33 in)
142 x 70.9 x 6.9 mm
(5.59 x 2.79 x 0.27 in)
Weight 145 g (5.11 oz) 160 g (5.64 oz) 122 g (4.3 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100
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), 7(2600), 8(900), 20(800)
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Microsoft Windows Phone 8.1 with Lumia Denim Android OS, v5.0 (Lollipop) Microsoft Windows 10
Processor Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Octa-core 2.2 GHz Cortex-A53, Mediatek MT6795 Quad-core 1.3 GHz Cortex-A7, Qualcomm Snapdragon 212
GPU Adreno 305 PowerVR G6200 Adreno 304
RAM 1 GB 2 GB 1 GB
Internal Memory 8 GB 32 GB 16 GB
External Memory microSD, up to 128 GB Yes microSD, up to 200 GB (dedicated slot)

display Display

Type IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD capacitive touchscreen AMOLED capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 5.5 inches 5.0 inches
Resolution 720 x 1280 pixels (294 ppi) 1080 x 1920 pixels (401 ppi) 720 x 1280 pixels (297 ppi)
Screen-to-Body Ratio 67.43% 72.02% 66.95%
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 8 MP, f/2.2
Flash LED flash Yes 28mm
Features Auto focus, 1/4'' Sensor Size Phase Detection Auto-focus (PDAF), Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama 1/4" Sensor Size
Video 1080p@30fps 1080p@30fps 720p@30fps
Front Camera 1 MP, 720p [Similar] 5 MP, 720p [Similar] 5 MP, f/2.2, 720p video [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes 296.0/236.8 Kbps
3G HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth v4.0, A2DP v4.0, A2DP, LE v4.1, A2DP, LE
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 b/g/n, DLNA, hotspot
USB microUSB v2.0 microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS, BDS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB, 1 GB RAM 32 GB, 2 GB RAM 16 GB, 1 GB RAM
Expandable Storage microSD, up to 128 GB Yes microSD, up to 200 GB (dedicated slot)

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 Removable Li-Ion Battery
Capacity 2500 mAh 3060 mAh 2000 mAh
Stand by Up to 864 h (2G)
Up to 864 h (3G)
Up to 144 h (3G) Up to 624 h (3G)
Talk Time Up to 26 h 30 min (2G)
Up to 17 h 30 min (3G)
Up to 11 h 30 min (3G) Up to 16 h (2G)
Up to 13 h (3G)