Phone Comparison - Samsung Galaxy Core 2 Duos vs Samsung Galaxy J1 vs Microsoft Lumia 640 LTE

general General Info

Manufacturer Samsung Samsung Microsoft
Announced June 2014 January 2015 March 2015
Status Available - July 2014 Available - January 2015 Available - April 2015
Price - Rs. 5,850 ($86.03) [Similarly Priced] Rs. 7,999 ($117.63) [Similarly Priced]
Colors White, Black Blue, Black, White Yes
Form Factor Candybar Candybar Candybar
Dimension 130.3 x 68 x 9.8 mm
(5.13 x 2.68 x 0.39 in)
129 x 68.2 x 8.9 mm
(5.08 x 2.69 x 0.35 in)
141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 in)
Weight 138 g (4.87 oz) 122 g (4.3 oz) 145 g (5.11 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 2100 HSDPA 900 / 2100 (single or dual SIM)
HSDPA 850 / 2100 (dual SIM)
HSDPA 850 / 900 / 2100
4G Network - - LTE
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Android OS, v4.4.x (KitKat) Microsoft Windows Phone 8.1 with Lumia Denim
Processor Quad-core 1.2 GHz Dual-core 1.2 GHz Cortex-A7 Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU - - Adreno 305
RAM 768 MB 512 MB 1 GB
Internal Memory 4 GB 4 GB 8 GB
External Memory microSD, up to 64 GB microSD, up to 128 GB microSD, up to 128 GB

display Display

Type TFT capacitive touchscreen TFT Capacitive Touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors 16M colors 16M colors 16M colors
Size 4.5 inches 4.3 inches 5.0 inches
Resolution 480 x 800 pixels (207 ppi) 480 x 800 pixels (217 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 65.25% 59.80% 67.43%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM Radio - FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 5 MP, 2592 х 1944 pixels 5 MP, 2592 х 1944 pixels 8 MP, 3264 x 2448 pixels
Flash LED flash LED Flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection Auto focus, Geo-tagging, Touch Focus, Face Detection Auto focus, 1/4'' Sensor Size
Video Yes 720p@30fps 1080p@30fps
Front Camera Yes, VGA [Similar] 2 MP [Similar] 1 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth Yes, v4.0 with A2DP v4.0, A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, DLNA, hotspot
USB Yes, microUSB v2.0 microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, Beidou
Browser HTML HTML HTML5

memory User Memory

Internal 4 GB, 768 MB RAM 4 GB, 512 MB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 128 GB microSD, up to 128 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 not supported NFC not supported NFC supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Li-Ion Battery
Capacity 2000 mAh 1850 mAh 2500 mAh
Stand by - - Up to 864 h (2G)
Up to 864 h (3G)
Talk Time - Up to 10 h (3G) Up to 26 h 30 min (2G)
Up to 17 h 30 min (3G)