Phone Comparison - Microsoft Lumia 640 LTE vs Microsoft Lumia 950 vs Microsoft Lumia 550

general General Info

Manufacturer Microsoft Microsoft Microsoft
Announced March 2015 October 2015 October 2015
Status Available - April 2015 Available - November 2015 Available - December 2015
Price Rs. 7,999 ($117.63) [Similarly Priced] Rs. 27,300 ($399.00) [Similarly Priced] Rs. 7,999 ($117.63) [Similarly Priced]
Colors Yes Black, White 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)
145 x 73.2 x 8.2 mm
(5.71 x 2.88 x 0.32 in)
136.1 x 67.8 x 9.9 mm
(5.36 x 2.67 x 0.39 in)
Weight 145 g (5.11 oz) 150 g (5.29 oz) 141.9 (4.97.0.32)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 2100
4G Network LTE LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 28(700), 38(2600), 40(2300) LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800)
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Microsoft Windows Phone 8.1 with Lumia Denim Microsoft Windows 10 Microsoft Windows 10
Processor Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Dual-core 1.82 GHz Cortex-A57 & quad-core 1.44 GHz Cortex-A53, Qualcomm MSM8992 Snapdragon 808 Quad-core 1.1 GHz Cortex-A7, Qualcomm MSM8909 Snapdragon 210
GPU Adreno 305 Adreno 418 Adreno 304
RAM 1 GB 3 GB 1 GB
Internal Memory 8 GB 32 GB 8 GB
External Memory microSD, up to 128 GB microSD, up to 200 GB microSD, up to 200 GB

display Display

Type IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display AMOLED capacitive touchscreen Capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 5.2 inches 4.7 inches
Resolution 720 x 1280 pixels (294 ppi) 1440 x 2560 pixels (564 ppi) 720 x 1280 pixels (315 ppi)
Screen-to-Body Ratio 67.43% 70.44% 64.94%
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 20 MP, 4992 х 3744 pixels 5 MP, 2592 х 1944 pixels
Flash LED flash Carl Zeiss optics LED flash
Features Auto focus, 1/4'' Sensor Size 1/2.4' Sensor Size, 1.12 μm Pixel Size, PureView Technology, Dual Capture, Geo-tagging, Face Detection, Panorama, HDR Auto focus, 1/4' Sensor Size, Geo-tagging, Touch Focus
Video 1080p@30fps 2160p@30fps, optical stabilization, stereo sound rec. 720p@30fps
Front Camera 1 MP, 720p [Similar] 5 MP, 1080p [Similar] 2 MP, 480p [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 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth v4.0, A2DP v4.1, A2DP 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, hotspot Wi-Fi 802.11 b/g/n, hotspot
USB microUSB v2.0 Type-C 1.0 reversible connector microUSB v2.0
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, 3 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 128 GB microSD, up to 200 GB microSD, up to 200 GB

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 supported NFC not supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Li-Ion Battery
Capacity 2500 mAh 3000 mAh 2100 mAh
Stand by Up to 864 h (2G)
Up to 864 h (3G)
Up to 288 h (2G)
Up to 288 h (3G)
Up to 672 h (2G)
Up to 672 h (3G)
Talk Time Up to 26 h 30 min (2G)
Up to 17 h 30 min (3G)
Up to 23 h (2G)
Up to 18 h (3G)
Up to 16 h (2G)
Up to 14 h (3G)