Phone Comparison - Microsoft Lumia 640 LTE vs Samsung Galaxy J7 vs Samsung Galaxy A8

Price Comparison (India) - -

general General Info

Manufacturer Microsoft Samsung Samsung
Announced March 2015 June 2015 July 2015
Status Available - April 2015 Available - June 2015 Available - August 2015
Price Rs. 7,999 ($117.63) [Similarly Priced] Rs. 13,400 ($197.06) [Similarly Priced] Rs. 26,990 ($396.91) [Similarly Priced]
Colors Yes White, Black Pearl White, Midnight Black, Champagne Gold
Form Factor Candybar Candybar Candybar
Dimension 141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 in)
152.4 x 78.6 x 7.5 mm
(6 x 3.09 x 0.3 in)
158 x 76.8 x 5.9 mm
(6.22 x 3.02 x 0.23 in)
Weight 145 g (5.11 oz) 171 g (6.03 oz) 151 g (5.33 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional)
3G Network HSDPA 850 / 900 / 2100 HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE LTE LTE
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM
Build Features - - - Fingerprint sensor

hardware Hardware and OS

OS Microsoft Windows Phone 8.1 with Lumia Denim Android OS, v5.1 (Lollipop) Android OS, v5.1 (Lollipop)
Processor Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Octa-core 1.2 GHz, Exynos 7580 Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615
GPU Adreno 305 Mali-T720 Adreno 405
RAM 1 GB 1.5 GB 2 GB
Internal Memory 8 GB 16 GB 16/32 GB
External Memory microSD, up to 128 GB microSD, up to 128 GB microSD, up to 128 GB (uses SIM 2 slot)

display Display

Type IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display Super AMOLED Capacitive Touchscreen Super AMOLED capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 5.5 inches 5.7 inches
Resolution 720 x 1280 pixels (294 ppi) 720 x 1280 pixels (267 ppi) 1080 x 1920 pixels (386 ppi)
Screen-to-Body Ratio 67.43% 69.63% 73.99%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio FM radio with RDS; recording FM radio with RDS; recording
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 16 MP, 5312 x 2988 pixels
Flash LED flash LED flash LED flash
Features Auto focus, 1/4'' Sensor Size Auto focus, Geo-tagging, Touch Focus, Beauty Face, Continuous Shots, Sensor Size: 1/3.06-inch, F1.9, Interval Shot, Panorama, Sports Mode, Sound and Shot Mode Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 1 MP, 720p [Similar] 5 MP [Similar] 5 MP, 1080p [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 Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps
Bluetooth v4.0, A2DP v4.1, A2DP v4.1, A2DP, EDR, LE
Wi-Fi Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n, dual-band, WiFi Direct, hotspot
USB microUSB v2.0 microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS/ Beidou (market dependant)
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB, 1 GB RAM 16 GB, 1.5 GB RAM 16/32 GB, 2 GB RAM
Expandable Storage microSD, up to 128 GB microSD, up to 128 GB microSD, up to 128 GB (uses SIM 2 slot)

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint 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-Ion Battery Non-removable Li-Ion Battery
Capacity 2500 mAh 3000 mAh 3050 mAh
Stand by Up to 864 h (2G)
Up to 864 h (3G)
Up to 354 h -
Talk Time Up to 26 h 30 min (2G)
Up to 17 h 30 min (3G)
Up to 18 h (3G) -