Phone Comparison - Samsung Galaxy Core 2 Duos vs OPPO Neo R831K vs Oppo Joy 3

general General Info

Manufacturer Samsung Oppo Oppo
Announced June 2014 August 2014 June 2015
Status Available - July 2014 Available - August 2014 Available - July 2015
Price - - Rs. 5,990 ($88.09) [Similarly Priced]
Colors White, Black White, Black White, Gray
Form Factor Candybar Candybar Candybar
Dimension 130.3 x 68 x 9.8 mm
(5.13 x 2.68 x 0.39 in)
132 x 65.8 x 9.2 mm
(5.2 x 2.59 x 0.36 in)
132.8 x 66.6 x 9 mm
(5.23 x 2.62 x 0.35 in)
Weight 138 g (4.87 oz) 130 g (4.59 oz) 135 g (4.76 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
3G Network HSDPA 900 / 2100 HSDPA 2100 HSDPA 850 / 900 / 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Android OS, v4.2.2 (Jelly Bean) based Color OS Android OS, v4.4 (KitKat)
Processor Quad-core 1.2 GHz Dual-core 1.3 GHz Quad-core 1.3 GHz Cortex-A7, Mediatek MT6582
GPU - - Mali-400MP2
RAM 768 MB 1 GB 1 GB
Internal Memory 4 GB 4 GB 4 GB
External Memory microSD, up to 64 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.5 inches 4.5 inches 4.5 inches
Resolution 480 x 800 pixels (207 ppi) 480 x 854 pixels (218 ppi) 480 x 854 pixels (218 ppi)
Screen-to-Body Ratio 65.25% 64.07% 62.92%
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 5 MP, 2592 х 1944 pixels 5 MP, 2592 x 1944 pixels 5 MP, 2592 х 1944 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, HDR Auto focus, Geo-tagging, HDR, Panorama
Video Yes Yes 720p
Front Camera Yes, VGA [Similar] Yes, 2 MP [Similar] 2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA+ HSPA
Bluetooth Yes, v4.0 with A2DP v2.1, A2DP v4.0, A2DP, EDR
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, hotspot
USB Yes, microUSB v2.0 microUSB v2.0 microUSB v2.0, USB Host
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS Yes, with A-GPS
Browser HTML HTML HTML5

memory User Memory

Internal 4 GB, 768 MB RAM 4 GB, 1 GB RAM 4 GB, 1 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 32 GB microSD, up to 32 GB
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 not supported NFC not supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Li-Po Battery
Capacity 2000 mAh 1900 mAh 2000 mAh
Stand by - - -
Talk Time - - -